Most integrations are verifiers: a caller presents an Agent Capability Token (ACT) and you check it. That’s the fastest path, and it works in six languages.
Private preview. Packages are not yet published to npm, PyPI, crates.io, or Maven, and the source repositories are private during consolidation. The git-install commands below resolve only for credentials with OpenAgentID organization access. Publication flips these to plain registry installs at release.

Verify an ACT in five minutes

Guard a route with one line:

Then: create an agent and broker a credential

Identity, authentication, and credentials compose on top of verification:
No silent stubs. If a protocol client is missing, the SDK fails closed with a ConfigError naming the package to install — it will never fabricate signatures. Unit tests opt into fakes explicitly with @openagentid/sdk-testing.

The six languages

Every language passes the same 13 canonical ACT conformance vectors in CI — the format you verify in one language is the format every other mints.

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