Identity token reference changedclaude-tag/admins/federated-access/token-reference
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99When Claude calls a system you connected through Federated agent access, it proves who it is with a signed identity token instead of a stored credential. The token is a JSON Web Token (JWT) that names your organization and the agent making the request. A gateway you run receives it in the `Authorization: Bearer` header and verifies it directly. AWS, Google Cloud, or your authorization server receives it in a token exchange and returns one of its own credentials.
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11This page lists what the token contains so the engineer who configures the verifying side can pin the right values. For setup steps, see [Connect a gateway](/docs/claude-tag/admins/federated-access/connect-a-gateway.md), [Connect an AWS role](/docs/claude-tag/admins/federated-access/aws.md), [Connect a Google Cloud identity](/docs/claude-tag/admins/federated-access/gcp.md), or [Connect an authorization server](/docs/claude-tag/admins/federated-access/authorization-server.md).
11This page lists what the token contains so the engineer who configures the verifying side can pin the right values. For setup steps, see [Connect a gateway](https://claude.com/docs/claude-tag/admins/federated-access/connect-a-gateway.md), [Connect an AWS role](https://claude.com/docs/claude-tag/admins/federated-access/aws.md), [Connect a Google Cloud identity](https://claude.com/docs/claude-tag/admins/federated-access/gcp.md), or [Connect an authorization server](https://claude.com/docs/claude-tag/admins/federated-access/authorization-server.md).
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1313## Issuer and signing keys
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5151* The organization ID starts with `org_` and the agent ID with `cagt_`. Both use only letters, digits, `_`, and `-`, so neither can contain `/` or `:`.
5252* The **Connect a gateway**, **Connect an AWS role**, **Connect a Google Cloud identity**, and **Connect an authorization server** dialogs show your organization's **Subject prefix**, `wimse://identity.anthropic.com/org/<your organization ID>/agent/`. Every one of your agents' subjects starts with this prefix.
5353* An agent belongs to one Slack channel. Deleting and recreating a channel creates a new agent with a new ID. The console doesn't show agent IDs; a verifier learns full subjects from the tokens it receives or from your cloud provider's logs.
54* The console's connection check for a gateway presents a token for a reserved test agent in your organization, shown in the **Connect a gateway** dialog as the **Control subject**. Your gateway must answer that token with a 2xx status so the check can pass, and must grant that subject no access. See [Connect a gateway](/docs/claude-tag/admins/federated-access/connect-a-gateway.md).
54* The console's connection check for a gateway presents a token for a reserved test agent in your organization, shown in the **Connect a gateway** dialog as the **Control subject**. Your gateway must answer that token with a 2xx status so the check can pass, and must grant that subject no access. See [Connect a gateway](https://claude.com/docs/claude-tag/admins/federated-access/connect-a-gateway.md).
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5656The `wimse://` form follows the IETF WIMSE working group's workload identifier specification.
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150150## Related resources
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152* [Connect a gateway](/docs/claude-tag/admins/federated-access/connect-a-gateway.md): verify the token yourself at a service you run
153* [Connect an AWS role](/docs/claude-tag/admins/federated-access/aws.md): the trust policy that pins these values
154* [Connect a Google Cloud identity](/docs/claude-tag/admins/federated-access/gcp.md): the attribute condition that pins these values
155* [Connect an authorization server](/docs/claude-tag/admins/federated-access/authorization-server.md): accept the token as a JWT bearer grant
156* [Limits](/docs/claude-tag/admins/federated-access/limits.md): lengths, counts, and lifetimes in one place
152* [Connect a gateway](https://claude.com/docs/claude-tag/admins/federated-access/connect-a-gateway.md): verify the token yourself at a service you run
153* [Connect an AWS role](https://claude.com/docs/claude-tag/admins/federated-access/aws.md): the trust policy that pins these values
154* [Connect a Google Cloud identity](https://claude.com/docs/claude-tag/admins/federated-access/gcp.md): the attribute condition that pins these values
155* [Connect an authorization server](https://claude.com/docs/claude-tag/admins/federated-access/authorization-server.md): accept the token as a JWT bearer grant
156* [Limits](https://claude.com/docs/claude-tag/admins/federated-access/limits.md): lengths, counts, and lifetimes in one place
157157* [Sample gateway](https://github.com/anthropics/claude-tag-wif-gateway-sample): a Python gateway that verifies the token and pins subjects exactly or by organization, with offline tests
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