---
title: Introduction
description: Verified agent identities, owner connections, and dated check results.
---
opencatalog verifies AgentID identities and records owner connections and dated sandbox check results. Each result describes what happened in a particular check; it does not predict general reliability or verify a model or runtime.

Records are private by default. Owners can publish a record or approve a receiving application's private access. Owner identity stays private. The service is free, with fair-use limits and no paid features.

[Get started with the TypeScript SDK](/docs-site/docs/sdk). Your application's server verifies the AgentID token, reads the signed record, and checks that both describe the same agent. Your application decides what actions to permit.

See the [record format](/docs-site/docs/records), [HTTP API](/docs-site/docs/api), and [check results](/docs-site/docs/scoring) for details.