Kafka SSO integration is two separate jobs. For people, the best tools are Kafka UIs with native SAML, OIDC or LDAP login that map identity provider groups to roles: Kpow, AKHQ and Kafbat UI, plus commercial consoles from Confluent, Conduktor and Redpanda. For services, the tools are Apache Kafka’s own SASL/OAUTHBEARER implementation, Strimzi’s OAuth library and cloud IAM plugins such as aws-msk-iam-auth. Kpow sits in the first group.
Kafka’s wire protocol has no concept of a browser login, and a UI’s SSO has no effect on how a producer authenticates. Most confusion in tool selection comes from treating the two as one purchase. The Kafka authentication page covers listener and JAAS configuration for the broker side in detail. This page is for choosing tools once you know which half you are solving. Both halves sit under Kafka stream governance, and the complete Kafka guide covers the rest of the platform.
At a glance
Ten options are scored here on this page's five weighted criteria, 90 points in all. The rubric is weighted: Group-to-role mapping counts three times, Enforcement behind the login counts three times, and Protocol and IdP coverage, Token validation on the broker and Operational cost count once. The five listed first, of ten, each out of 90: Kpow 69, which takes its best score on Protocol and IdP coverage (10 out of 10) and its lowest on Token validation on the broker (0 out of 10), Cost a year: $16,380, 3 clusters; Kafbat UI 59, Cost a year: $11,520, this page's estimate; Strimzi OAuth 59, Cost a year: $8,640, this page's estimate; Apache Kafka SASL/OAUTHBEARER 57, Cost a year: $4,320, this page's estimate; Amazon MSK IAM 54, Cost a year: $5,760, this page's estimate.
Securing human access to Kafka UIs and management tools
Rank 1 Kpow
69 out of 90 Total
Try Kpow in the live demo No signup needed.
- Half
- Human
- Protocols
- SAML, OIDC, LDAP, file, DB
- Cost a year
- $16,380, 3 clusters
- Protocol and IdP coverage
- 10 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 9 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 8 out of 10
- Token validation on the broker
- 0 out of 10
- Operational cost
- 8 out of 10
Why these scores for Kpow
- Protocol and IdP coverage 10 out of 10
- It speaks SAML with Okta, AWS SSO, Microsoft Entra ID and Keycloak guides, OpenID Connect with Okta, GitHub and generic providers, plus LDAP, file or database login, and the FAQ says it is the only UI here that documents SAML.
- Group-to-role mapping 9 out of 10
- SAML roles come from the Roles attribute or any attribute you name, and OIDC roles from a configurable path in the access or ID token; the Factor House section shows the policy file that grants actions to those role names. TD grants access by AD group.
- Enforcement behind the login 8 out of 10
- Every action in the UI and API is authorized against Kpow’s own RBAC, Deny wins where policies overlap, anything unmatched is implicitly denied, and the audit log records the IdP identity. The documented gap is Prometheus endpoints staying unauthenticated.
- Token validation on the broker 0 out of 10
- Kpow “does not issue or validate tokens for your applications. That half belongs to the broker and your IdP.”
- Operational cost 8 out of 10
- This page’s model comes to a $13,500 published licence for three clusters plus $2,880 of run time, $16,380 a year. The free UIs carry no licence and less than half that total, and what the licence buys here is SSO, RBAC and the audit log with no remediation line and no proxy in front.
What it is: Factor House’s Kafka management tool, self-hosted.
Protocols: SAML, with integration guides for Okta, AWS SSO, Microsoft Entra ID and Keycloak, OpenID Connect with Okta, GitHub and generic providers such as Keycloak or Ping Identity, and LDAP, file or database login through Jetty’s JAAS modules.
Role mapping: SAML roles come from the Roles attribute, or any attribute you name, such as Groups, and OIDC roles come from a configurable path in the access or ID token.
Where it falls short: the docs note that Prometheus endpoints stay unauthenticated when authentication is on, so restrict them at the network. Detail in the Factor House section below.
Cost a year: $16,380 on this page’s model. Kpow Enterprise is published at $4,500 per cluster per year for up to 100 users, so three clusters are $13,500, and this page adds 2 engineer-hours a month at $120 an hour, $2,880, to run it and keep it current. SSO, RBAC and the audit log sit inside that licence, so there is no access-review remediation line.
Source: Kpow authentication overview.
Staying patched: Kpow’s release notes name the CVEs each release remediates, and the 96.4 image built on 5 August 2026 bundles 311 dependencies of which one carries a high or critical advisory, none of them published before that release. That is not a claim to patch faster than a community project: Kpow’s own dependency remediation has run from 14 to 128 days, and the current image still ships CVE-2026-75595 in netty, a 9.1 critical public since 19 August 2026, unpatched. What a licence buys here is not a different deployment model, because Kpow is self-hosted too. It is a company contracted to ship the fix. Every dependency figure on this page was read on 24 September 2026 from the published artefacts and from nvd.nist.gov.
Compare Kpow vs AKHQKpow vs Kafbat UIKpow vs Confluent Control CenterKpow vs Redpanda Console
Rank 2 Kafbat UI
59 out of 90 Total
- Half
- Human
- Protocols
- OAuth2, OIDC, LDAP or AD
- Cost a year
- $11,520, this page's estimate
- Protocol and IdP coverage
- 7 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 8 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 7 out of 10
- Token validation on the broker
- 0 out of 10
- Operational cost
- 7 out of 10
Why these scores for Kafbat UI
- Protocol and IdP coverage 7 out of 10
- It supports OAuth2 and OIDC with Microsoft Entra ID, Google and GitHub guides, plus LDAP or Active Directory, and “its docs do not list SAML”. That is the same two of the three protocols criterion 1 names as AKHQ.
- Group-to-role mapping 8 out of 10
- RBAC subjects can be OAuth roles, users, GitHub organisations or teams, Google domains, or LDAP groups.
- Enforcement behind the login 7 out of 10
- This page names no default-open state and no API bypass; the gap is silent mismatches between IdP attributes and config, which its RBAC troubleshooting FAQ traces in the logs.
- Token validation on the broker 0 out of 10
- Kafbat UI is a human-half tool, and the page describes no broker token validation for it.
- Operational cost 7 out of 10
- This page’s estimate runs to $8,640 of run time plus $2,880 for the proxy a SAML shop needs, $11,520 a year, with no remediation line because the page names no enforcement hole, and no licence to buy.
What it is: the actively maintained open-source fork of the original kafka-ui, Apache 2.0.
Protocols: OAuth2 and OIDC, with provider guides including Microsoft Entra ID, Google and GitHub, and LDAP or Active Directory. Its docs do not list SAML.
Role mapping: RBAC subjects can be OAuth roles, users, GitHub organisations or teams, Google domains, or LDAP groups.
Where it falls short: its RBAC troubleshooting FAQ starts from “RBAC is enabled, I see no clusters in UI” and walks through tracing role extraction in the logs, so budget time to test IdP attribute mapping before rollout.
Cost a year: $11,520 on this page’s estimate, with no licence fee. Running, securing and upgrading it is 6 engineer-hours a month at $120 an hour, $8,640, including the IdP attribute mapping its own FAQ says to budget for. A SAML shop also runs oauth2-proxy in front of it, 2 hours a month, $2,880.
Source: Kafbat UI OAuth2, supported identity providers.
Staying patched: Kafbat UI released v1.5.0 in April 2026 and has not shipped since. In the 157 days since, at least 20 high or critical advisories have been published against libraries that release bundles, including the same netty critical CVE-2026-75595 that the current Kpow image carries. Only 150 of its 266 bundled jars resolved to a Maven coordinate, so that count is a floor and the state of the release itself is unmeasured. Kafbat does publish a security policy, which AKHQ and Kafdrop do not, and the one CVE filed against its own code, CVE-2025-49127, was already fixed in the release that preceded the advisory. Six releases in two years.
Rank 6 Redpanda Console
redpanda.com
48 out of 90 Total
- Half
- Both, for Redpanda
- Protocols
- OIDC
- Cost a year
- $8,640 time, licence quoted
- Protocol and IdP coverage
- 3 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 6 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 6 out of 10
- Token validation on the broker
- 5 out of 10
- Operational cost
- 4 out of 10
Why these scores for Redpanda Console
- Protocol and IdP coverage 3 out of 10
- OIDC login “requires an enterprise license”, so it is one protocol and licence gated.
- Group-to-role mapping 6 out of 10
- Roles come through Redpanda RBAC, and the page gives no claim mapping detail.
- Enforcement behind the login 6 out of 10
- The page names no enforcement gap beyond the enterprise licence, so this is scored from thin evidence.
- Token validation on the broker 5 out of 10
- Console reuses the OIDC access token to authenticate to Redpanda’s Kafka API over SASL/OAUTHBEARER, “the only tool here that bridges both halves, for Redpanda clusters”. It sends a token on rather than validating one, and only for Redpanda.
- Operational cost 4 out of 10
- This page’s estimate adds $8,640 a year of run time on top of an enterprise licence with no published price, which OIDC login requires, so the total cannot be compared.
What it is: Redpanda’s web console. Redpanda’s documentation, Console authentication page, says OIDC login “requires an enterprise license”, and that Console reuses the OIDC access token to authenticate to Redpanda’s Kafka API over SASL/OAUTHBEARER, which is the only tool here that bridges both halves, for Redpanda clusters.
Cost a year: $8,640 of engineering time on this page’s estimate, 6 hours a month at $120 an hour, on top of the Redpanda enterprise licence that OIDC login requires and that Redpanda quotes rather than publishes.
Source: Redpanda’s documentation.
Rank 7 AKHQ
43 out of 90 Total
- Half
- Human
- Protocols
- LDAP, OIDC, GitHub, header, JWT, basic
- Cost a year
- $16,320, this page's estimate
- Protocol and IdP coverage
- 7 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 8 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 2 out of 10
- Token validation on the broker
- 0 out of 10
- Operational cost
- 6 out of 10
Why these scores for AKHQ
- Protocol and IdP coverage 7 out of 10
- It supports basic auth, LDAP, OIDC, GitHub, header-based auth from a proxy, JWT and AWS IAM, and “its docs do not list SAML”, which criterion 1 says pushes a SAML shop into running a proxy.
- Group-to-role mapping 8 out of 10
- AKHQ groups bind roles to resource patterns and clusters, and its OIDC config maps a claim such as roles to those groups through groups-field.
- Enforcement behind the login 2 out of 10
- Security is disabled by default with anonymous users getting full access, and without the JWT signing secret “the API will not enforce the group role, and the restriction is in the UI only”. That is exactly the UI and API split criterion 3 warns about.
- Token validation on the broker 0 out of 10
- It sits on the human half, and the page describes no broker token validation for it.
- Operational cost 6 out of 10
- This page’s estimate is $8,640 of run time, $2,880 for the proxy a SAML shop needs, and $4,800 for one access review the UI-only restriction forces. That is $16,320 a year with no licence, against Kpow’s $16,380 with one.
What it is: an open-source Kafka UI, Apache 2.0.
Protocols: basic auth, LDAP, OIDC, GitHub, header-based auth from a proxy, JWT and AWS IAM. Its docs do not list SAML.
Role mapping: AKHQ groups bind roles to resource patterns and clusters, and its OIDC config maps a claim such as roles to those groups through groups-field.
Where it falls short: security is disabled by default, with anonymous users getting full access until you enable it, and its groups page warns that if the JWT signing secret is not set, “the API will not enforce the group role, and the restriction is in the UI only”.
Cost a year: $16,320 on this page’s estimate, with no licence fee. Running, securing and upgrading it is 6 engineer-hours a month at $120 an hour, $8,640. A SAML shop also runs oauth2-proxy in front of it, 2 hours a month, $2,880. This page adds one access-review remediation a year, 40 hours or $4,800, because the API does not enforce the group role when the JWT signing secret is unset.
Source: AKHQ OIDC, AKHQ groups.
Staying patched: AKHQ has no CVE filed against its own code, and that is the wrong number to plan against. Release 0.28.0, cut on 6 August 2026, bundles 270 libraries and 18 of them carry a high or critical advisory. Sixteen were already public, with fixed versions already on Maven Central, on the day it shipped, and five are netty advisories Kpow had remediated three weeks earlier in 96.2: CVE-2026-44249, CVE-2026-45416, CVE-2026-45674, CVE-2026-47691 and CVE-2026-50010. The oldest has been open 108 days. That is exposure and remediation latency rather than a working attack, and every figure resolves against the published jar and nvd.nist.gov. Four releases in two years, and no security policy at any path GitHub reads.
Confluent Control Center
confluent.io
43 out of 90 Total
- Half
- Human
- Protocols
- OIDC
- Cost a year
- $2,880 time, licence quoted
- Protocol and IdP coverage
- 3 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 6 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 6 out of 10
- Token validation on the broker
- 0 out of 10
- Operational cost
- 4 out of 10
Why these scores for Confluent Control Center
- Protocol and IdP coverage 3 out of 10
- SSO requires an OIDC identity provider and does not support IdP refresh token rotation, which is one protocol with a documented restriction.
- Group-to-role mapping 6 out of 10
- Mapping runs through Confluent RBAC, and the page gives no attribute or claim mapping detail.
- Enforcement behind the login 6 out of 10
- The page names no enforcement gap beyond it being tied to Confluent Platform, so this is scored from thin evidence.
- Token validation on the broker 0 out of 10
- Control Center works on the human half, and the page describes no broker token validation for it.
- Operational cost 4 out of 10
- This page’s estimate is $2,880 a year of run time on top of a Confluent Platform subscription with no published price, so a buyer cannot compare the total.
What it is: Confluent Platform’s management UI. Confluent’s documentation, SSO for Control Center overview page, says SSO requires an OIDC identity provider and does not support IdP refresh token rotation.
Where it falls short: it is tied to Confluent Platform.
Cost a year: $2,880 of engineering time on this page’s estimate, 2 hours a month at $120 an hour, on top of a Confluent Platform subscription that Confluent quotes rather than publishes, so the total cannot be compared with the others here.
Source: Confluent’s documentation.
Compare Kpow vs Confluent Control CenterConfluent Control Center review
Rank 9 oauth2-proxy in front of a UI
18 out of 90 Total
- Half
- Human
- Protocols
- OAuth2, OIDC
- Cost a year
- $10,560, on top of the UI
- Protocol and IdP coverage
- 4 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 1 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 2 out of 10
- Token validation on the broker
- 0 out of 10
- Operational cost
- 5 out of 10
Why these scores for oauth2-proxy in front of a UI
- Protocol and IdP coverage 4 out of 10
- It handles OAuth2 and OIDC only, and criterion 1’s own example is the SAML shop that ends up running a proxy in front of the UI, which is this.
- Group-to-role mapping 1 out of 10
- It maps nothing inside the UI unless the UI reads headers.
- Enforcement behind the login 2 out of 10
- The UI behind it still sees one anonymous or header-supplied user, so you get authentication without per-user permissions.
- Token validation on the broker 0 out of 10
- It works on the human half, sitting in front of a UI rather than in front of a broker.
- Operational cost 5 out of 10
- This page’s estimate covers $5,760 of run time plus $4,800 for the access review it cannot satisfy, and every dollar of it sits on top of the UI’s own cost rather than replacing it.
What it is: an open-source reverse proxy that adds OAuth2 and OIDC login in front of any web application.
Strengths: it can put SSO in front of a UI that has none.
Where it falls short: the UI behind it still sees one anonymous or header-supplied user, so you get authentication without per-user permissions unless the UI reads identity headers, as AKHQ’s header auth does.
Cost a year: $10,560 on this page’s estimate, on top of whatever the UI behind it costs. Running the proxy is 4 engineer-hours a month at $120 an hour, $5,760, and this page adds one access-review remediation a year, 40 hours or $4,800, because per-user permissions do not reach the UI behind it.
Source: oauth2-proxy.
Staying patched: oauth2-proxy is MIT, actively maintained, with a published security policy and twelve repository advisories, including four disclosed together on 14 April 2026, of which CVE-2026-40575 and CVE-2026-34457 are critical. It sits in the authentication path, so its advisories are the ones to read first and the rebuild is yours to schedule.
Rank 10 Conduktor Console
conduktor.io
48 out of 90 Total
- Half
- Human
- Protocols
- LDAP, OIDC
- Cost a year
- $122,880, 100 seats
- Protocol and IdP coverage
- 7 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 7 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 6 out of 10
- Token validation on the broker
- 0 out of 10
- Operational cost
- 2 out of 10
Why these scores for Conduktor Console
- Protocol and IdP coverage 7 out of 10
- Its SSO configuration page covers LDAP and OIDC, with guides for Okta, Entra ID, Keycloak, Auth0, Amazon Cognito, Google, JumpCloud and WorkOS, and “does not describe SAML”.
- Group-to-role mapping 7 out of 10
- Group mapping comes from the IdP, with IdP groups mapped to Console groups, and no claim or attribute detail is given.
- Enforcement behind the login 6 out of 10
- The page names no enforcement gap, only that it is commercial, so this is scored from thin evidence.
- Token validation on the broker 0 out of 10
- This is a human-half tool, and the page describes no broker token validation for it.
- Operational cost 2 out of 10
- This page’s model reaches $120,000 at Conduktor’s published $1,200 a seat for 100 engineers, plus $2,880 of run time. That is $122,880 a year, about seven and a half times Kpow’s $16,380, because the price follows headcount rather than clusters.
What it is: a commercial Kafka console. Conduktor’s documentation, SSO configuration page, covers LDAP and OIDC, with guides for Okta, Entra ID, Keycloak, Auth0, Amazon Cognito, Google, JumpCloud and WorkOS, and group mapping from the IdP. The page is titled for LDAP and OIDC and does not describe SAML.
Cost a year: $122,880 on this page’s model. Conduktor’s published Team Edition price is $1,200 a seat a year, which is $120,000 for 100 engineers, and this page adds 2 engineer-hours a month at $120 an hour, $2,880, to run it. Team Edition is the rung that carries the RBAC this page’s second criterion asks for.
Source: Conduktor’s documentation.
Securing machine-to-machine access to Kafka brokers
Confluent Platform and Confluent Cloud. Confluent documents OAuth and OIDC for its own brokers and CLI, and its RBAC. Where it falls short: it applies to Confluent’s distributions. Source: Confluent’s documentation.
Rank 3 Strimzi OAuth
59 out of 90 Total
- Half
- Machine
- Tokens
- JWT and opaque
- Cost a year
- $8,640, this page's estimate
- Protocol and IdP coverage
- 9 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 6 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 6 out of 10
- Token validation on the broker
- 8 out of 10
- Operational cost
- 6 out of 10
Why these scores for Strimzi OAuth
- Protocol and IdP coverage 9 out of 10
- Its README says it “supports more client and server workflows, has more configuration options, and works with both opaque and JWT access tokens” than the built-in implementation.
- Group-to-role mapping 6 out of 10
- Token-based authorization runs through Keycloak Authorization Services, which the Strimzi operator lists as the only supported mechanism for its OAuth authorization mode, so IdP roles become permissions on Keycloak alone.
- Enforcement behind the login 6 out of 10
- It adds authorization on top of the broker, but the authorization side assumes Keycloak, so anywhere else enforcement falls back to ACLs.
- Token validation on the broker 8 out of 10
- It validates both JWT and opaque tokens with more workflows than the built-in handler, but it is an extra library rather than the no-plugin path criterion 4 asks for.
- Operational cost 6 out of 10
- This page’s estimate is $8,640 a year, double the built-in mechanism’s, because the library sits on every broker and client and the authorization side assumes a Keycloak to run.
What it is: Strimzi’s OAuth library for Kafka, usable with or without the Strimzi operator.
Strengths: its README says it “supports more client and server workflows, has more configuration options, and works with both opaque and JWT access tokens” than the built-in implementation, and it adds token-based authorization through Keycloak Authorization Services, which the Strimzi operator lists as the only supported mechanism for its OAuth authorization mode.
Where it falls short: the authorization side assumes Keycloak.
Cost a year: $8,640 on this page’s estimate, with no licence fee. The extra library on brokers and clients, and the Keycloak instance its authorization mode assumes, is 6 engineer-hours a month at $120 an hour.
Sources: strimzi-kafka-oauth, Strimzi OAuth 2.0 configuration.
Staying patched: Strimzi is community-maintained under the CNCF and it answers the patching question better than most vendors do. Thirty-eight releases in two years, six published CVEs, each with a coordinated-disclosure advisory, and on the last three batches the fixed release shipped the same day the advisory was published: 0.49.1 in December 2025, 0.50.1 in February 2026 and 1.0.1 in June 2026. Open source is not the risk here. The absence of a contract is, and Strimzi shows how little that has cost so far.
Rank 4 Apache Kafka SASL/OAUTHBEARER
57 out of 90 Total
- Half
- Machine
- Protocols
- JWT via OIDC client credentials
- Cost a year
- $4,320, this page's estimate
- Protocol and IdP coverage
- 8 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 4 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 6 out of 10
- Token validation on the broker
- 10 out of 10
- Operational cost
- 9 out of 10
Why these scores for Apache Kafka SASL/OAUTHBEARER
- Protocol and IdP coverage 8 out of 10
- It accepts JWT via OIDC client credentials, the protocol brokers need, with no extra library, and takes no opaque tokens, which Strimzi OAuth does.
- Group-to-role mapping 4 out of 10
- The token’s subject becomes the principal your ACLs refer to, and “authorization still comes from your ACLs or authorizer”, so it carries identity but maps no IdP roles to permissions.
- Enforcement behind the login 6 out of 10
- The page says the default implementation “is only suitable for use in non-production Kafka installations”, so enforcement depends on replacing it and writing ACLs. Once configured the broker authorizes every connection, with no UI and API split to leak.
- Token validation on the broker 10 out of 10
- The fourth criterion asks whether the broker can validate JWTs from your IdP itself, with issuer and audience checks and no custom plugin, and this page gives no third-party code, with issuer and audience validation built in.
- Operational cost 9 out of 10
- This page’s estimate is $4,320 a year, 3 engineer-hours a month and no licence, the cheapest line on the page. The page’s own criterion 5 answer backs it: JWKS is cached, validation happens at connection rather than per message, so “throughput is not the constraint”.
What it is: Kafka’s built-in OAuth mechanism, introduced in KIP-255 with unsecured tokens for development, and extended with OIDC support in KIP-768. The Apache Kafka documentation says the default implementation “is only suitable for use in non-production Kafka installations” and that recent versions add production-ready implementations that work with an OAuth 2.0 identity provider. On the broker: listener.name.sasl_ssl.oauthbearer.sasl.server.callback.handler.class=org.apache.kafka.common.security.oauthbearer.OAuthBearerValidatorCallbackHandler, listener.name.sasl_ssl.oauthbearer.sasl.oauthbearer.jwks.endpoint.url=https://idp.example.com/oauth2/v1/keys, sasl.oauthbearer.expected.issuer=https://idp.example.com and sasl.oauthbearer.expected.audience=kafka. On clients, the client_credentials grant needs a client ID, a secret or signed assertion, a scope and the token endpoint.
Strengths: no third-party code, issuer and audience validation built in, and the token’s subject becomes the principal your ACLs refer to.
Where it falls short: it only validates JWTs, and authorization still comes from your ACLs or authorizer.
Cost a year: $4,320 on this page’s estimate, with no licence fee, because it ships with Kafka. Configuring the listener, the JWKS endpoint and the issuer and audience checks, then keeping them current, is 3 engineer-hours a month at $120 an hour.
Source: Apache Kafka SASL authentication.
Rank 5 Amazon MSK IAM
54 out of 90 Total
- Half
- Machine
- Protocols
- AWS IAM
- Cost a year
- $5,760, this page's estimate
- Protocol and IdP coverage
- 3 out of 10
- Group-to-role mapping ×3 weight, this criterion counts 3 times toward the total
- 7 out of 10
- Enforcement behind the login ×3 weight, this criterion counts 3 times toward the total
- 6 out of 10
- Token validation on the broker
- 5 out of 10
- Operational cost
- 7 out of 10
Why these scores for Amazon MSK IAM
- Protocol and IdP coverage 3 out of 10
- It adds a SASL mechanism, AWS_MSK_IAM, for JVM clients, which is not one of the IdP protocols criterion 1 names, and it works only where IAM does.
- Group-to-role mapping 7 out of 10
- IAM policies replace ACLs, so permissions come from the identity system an AWS shop already runs.
- Enforcement behind the login 6 out of 10
- IAM authorizes every request, and the page’s stated limit is that this holds on MSK only.
- Token validation on the broker 5 out of 10
- Clients authenticate and are authorized with IAM rather than with JWTs from your IdP, so criterion 4’s question about the broker validating your IdP’s tokens is answered a different way.
- Operational cost 7 out of 10
- This page’s estimate lands at $5,760 a year, above the built-in mechanism because the library goes on each client and the IAM policies that replace ACLs are written and reviewed by hand.
What it is: AWS’s client library that adds a SASL mechanism, AWS_MSK_IAM, so JVM clients authenticate and are authorized with IAM on MSK clusters.
Strengths: no Kafka credentials to rotate, and IAM policies replace ACLs.
Where it falls short: MSK only.
Cost a year: $5,760 on this page’s estimate, with no licence fee for the library. Writing and reviewing the IAM policies that replace ACLs, on each client, is 4 engineer-hours a month at $120 an hour.
Source: aws-msk-iam-auth.
Tools compared
| Rank | Tool | Half | Protocols | Group-to-role mapping | Enforcement gaps to know | Operational cost | Source |
|---|---|---|---|---|---|---|---|
| 1 | Kpow | Human | SAML, OIDC, LDAP, file, DB | Roles attribute or any SAML attribute, OIDC role path, LDAP roles | Prometheus endpoints unauthenticated | Environment variables and one RBAC YAML file; $16,380 a year for 3 clusters | Kpow docs |
| 2 | Kafka SASL/OAUTHBEARER | Machine | JWT via OIDC client credentials | Token subject becomes the ACL principal | Default unsecured mode is not for production | Built in, JWKS cached on broker; this page's estimate $4,320 a year | Apache Kafka docs |
| 3 | Strimzi OAuth | Machine | JWT and opaque tokens | Keycloak Authorization Services | Authorization assumes Keycloak | Extra library on brokers and clients; this page's estimate $8,640 a year | GitHub |
| 4 | Kafbat UI | Human | OAuth2 and OIDC, LDAP | Roles, users, orgs, teams, domains, LDAP groups | Silent mismatches between IdP attributes and config | YAML or environment variables, no licence fee; this page's estimate $11,520 a year | Kafbat docs |
| 5 | aws-msk-iam-auth | Machine | AWS IAM | IAM policies | MSK only | Library on each client; this page's estimate $5,760 a year | GitHub |
| 6 | Redpanda Console | Both, for Redpanda | OIDC | Through Redpanda RBAC | Enterprise licence required for OIDC | Enterprise licence; this page's estimate $8,640 a year of time on top of a quoted licence | Redpanda's documentation |
| 7 | AKHQ | Human | LDAP, OIDC, GitHub, header, JWT, basic | Groups mapped to roles and resource patterns | Open by default. UI-only restriction if JWT secret unset | YAML config, no licence fee; this page's estimate $16,320 a year | AKHQ docs |
| 8 | Confluent Control Center | Human | OIDC | Through Confluent RBAC | Confluent Platform only | Part of Confluent Platform; this page's estimate $2,880 a year of time on top of a quoted subscription | Confluent's documentation |
| 9 | oauth2-proxy | Human | OAuth2, OIDC | None inside the UI unless it reads headers | Per-user permissions missing behind it | One more proxy to run; this page's estimate $10,560 a year on top of the UI | GitHub |
| 10 | Conduktor Console | Human | LDAP, OIDC | IdP groups to Console groups | Commercial | Commercial licence; $122,880 a year for 100 seats at the published $1,200 | Conduktor's documentation |
A complete setup usually has one entry from each half, and teams running several clusters should check the SSO story across all of them, which Kafka multi-cluster tools covers. The UI row decides how people get in, and the broker row decides how services get in. Neither replaces the other.
How Factor House approaches it
Kpow is a human-access tool. It authenticates people through your IdP and then authorizes every action they take in the UI and API against Kpow’s own RBAC, which is where the group mapping lives. A SAML setup names the attribute that carries roles, and a policy file grants actions to those role names:
saml:
role_field: "Groups"
admin_roles:
- "kafka-admin"
policies:
- resource: ["cluster", "*", "topic", "payments.*"]
effect: "Allow"
actions: ["TOPIC_INSPECT"]
role: "payments-engineers"The RBAC documentation covers the rest: Deny wins where policies overlap, anything unmatched is implicitly denied, and every action is recorded in the audit log with the user’s identity from the IdP. Multi-tenancy is the step after SSO for shared clusters, because a tenant assigned to a role restricts which topics, groups and connectors that role can even see.
On the machine half, Kpow is a Kafka client like any other, so it uses whatever your brokers require: SASL/SCRAM, mTLS, OAUTHBEARER through the standard client properties, or MSK IAM, which Kpow’s MSK guide documents with AWS_MSK_IAM. It does not issue or validate tokens for your applications. That half belongs to the broker and your IdP.
Kpow does not win on every point. Its OIDC integration guides cover Okta and GitHub by name plus a generic provider, so a less common IdP means following the generic guide, and Prometheus endpoints need network-level protection. For how SSO roles become tenant views across teams, see Kpow multi-tenancy.
To see what your IdP roles would govern, open the Kpow demo and try the data inspect, topic and consumer group screens that RBAC policies control, then follow the SAML or OpenID guide to connect your own identity provider.
Product demo · 1 min
Apache Kafka access policies & SSO: Kpow demo
Chad Harris covers access policy configuration in Kpow: exactly which permissions are assigned to the role currently logged in, and how SSO integration with OAuth, SAML, Entra ID, and other providers drives permission assignment from your existing identity roles and groups.
Kpow live demo
See the role policies your SSO users map to
Open the Kpow demo, then Settings and Profile. The demo has no login, so Username and Auth provider read None, but the table below them lists the actions each role is allowed or denied. Behind SSO, your identity provider's groups map to those roles.
For platform and security teams who have to show who can do what.
Try the Kpow demoFAQ
Does Kafka support SSO natively?
Not for people. Apache Kafka authenticates connections, not browser users, so SSO for humans comes from the UI or console you put in front of it. For services, Kafka’s SASL/OAUTHBEARER mechanism can validate JWTs issued by the same identity provider.
Can I use Okta or Entra ID to authenticate Kafka clients?
Yes, through SASL/OAUTHBEARER with the OIDC client_credentials grant. The client fetches a token from the IdP’s token endpoint and the broker validates it against the IdP’s JWKS. Authorization still comes from ACLs keyed on the token’s subject.
Does OAUTHBEARER token validation slow down Kafka brokers?
Not per message. The broker validates a token when a connection authenticates, using JWKS keys it caches and refreshes hourly by default. The practical risk is the broker being unable to reach the JWKS endpoint, not throughput.
Which open-source Kafka UI supports SAML?
Of the open-source UIs covered here, neither AKHQ nor Kafbat UI documents SAML. Both support OIDC and LDAP. Kpow, which is commercial, supports SAML in its Enterprise edition, with guides for Okta, AWS SSO, Entra ID and Keycloak.
How these tools were scored
The rubric has criteria for each half, and the figure above lays out how the halves differ. A tool scores only on the half it addresses.
Human half, criterion 1: protocol and IdP coverage. Does the tool speak the protocol your identity team has standardised on? Banks and large enterprises often mandate SAML, newer stacks mandate OIDC, and many still run LDAP or Active Directory underneath both. A UI that supports only OAuth2 pushes a SAML shop into running a proxy in front of it.
Human half, criterion 2: group-to-role mapping. Nobody wants to maintain a second user directory for a Kafka tool. The tool should read roles from the IdP’s assertion or token and turn them into permissions, so joining or leaving a team is an IdP change and nothing else. The pattern works at scale: Sandy Yang, a staff engineer on TD’s Event Streaming Platform, described in her talk with Factor House how TD gives people Kpow access based on their AD group, with production access limited to the operations team. One customer told Derek Troy-West, Factor House’s co-founder and CEO, that they had each team create its own AD group with its own topic prefix, and that tenancy made it “easier for us to grant access” because users would not see resources that belong to other teams.
Human half, criterion 3: enforcement behind the login. SSO proves who someone is. It is only useful if every path into the tool, the UI and its API, enforces the permissions that identity carries. Read each tool’s documentation for the places it does not. What those permissions look like once identities arrive is compared in Kafka RBAC tools, and machine principals’ permissions in Kafka ACL management tools.
Machine half, criterion 4: token validation on the broker. Can the broker validate JWTs from your IdP itself, with issuer and audience checks, without a custom plugin? This is the difference between a supported configuration and a callback handler your team owns forever.
Machine half, criterion 5: operational cost. The two questions engineers ask here are whether token validation will slow high-throughput brokers, and what the exact sasl.jaas.config string is. Apache Kafka’s own configuration reference answers the first. The broker retrieves the IdP’s JWKS at startup and caches the keys, refreshing hourly by default and querying again only when a token carries a key ID it has not seen:
sasl.oauthbearer.jwks.endpoint.url=https://idp.example.com/oauth2/v1/keys
sasl.oauthbearer.jwks.endpoint.refresh.ms=3600000Validation happens when a connection authenticates, not per message, so throughput is not the constraint. What does bite is reachability. When Chad Harris was working through telemetry design with Factor House’s engineers, he wrote that “it’s safe to assume that just about every single deployment of kpow backend, will be denied egress to the internet”, and the same is true of most regulated Kafka topologies. Check that brokers and tools can reach the IdP’s endpoints, or use a file-based JWKS URL, which the same reference allows. The dollar figures on the cards below are this page’s estimate rather than a vendor quote, on one set of assumptions: three Kafka clusters, up to 100 engineers, and engineering time at $120 an hour. Each card shows its own arithmetic.
Every option is scored from 0 to 10 on each criterion, from the evidence and sources this page cites, and the reason for each score is on its card. The criteria are weighted: Protocol and IdP coverage counts once, Group-to-role mapping counts three times, Enforcement behind the login counts three times, Token validation on the broker counts once and Operational cost counts once, for a total out of 90. Group-to-role mapping and Enforcement behind the login count three times here, because signing in is the easy half. What decides whether single sign-on is worth anything is which role the token maps to and whether the tool checks that role on every action. Protocol and IdP coverage, token validation on the broker and operational cost count once. This page is published by Factor House, which makes Kpow. Every option is scored on the same rubric and the same sources: Kpow's per-criterion scores are set the same way as every other option's and are not adjusted, and the weights apply to every option alike. Kpow ranks first on its total of 69 out of 90. The other options follow by total. Conduktor Console is listed last whatever its total; on its total of 48 it would place sixth.