WellKnownAI

WellKnownAI is a public registry and toolkit for publishing machine readable descriptions of AI capable services. It hosts the field definitions, examples and snapshots for an AI Manifest format, currently version 0.1, which a provider publishes at a well known path on its own domain so that agents and other software can discover what the service offers. A manifest lists the provider, an OpenAPI location and schemas, servers, capabilities, resources and prompts, plus authentication details such as a JWKS endpoint and signed receipts. The site describes itself as compatible with MCP and agents.json, and cross links to related specifications named AgentPKI and AgentURN. A provider can also publish a certificate revocation style file to revoke keys or mark compliance status. The site includes a short getting started guide for providers, with minimal example manifests, advice on HTTPS, caching headers and key rotation with an overlap window of at least seven days, and command line validators for the manifest, key set and revocation files. Continuous integration workflows in the project repository validate changes automatically. To be listed, a provider opens a pull request that adds its domain to the registry file, and a registry viewer and release snapshots with diffs are available for download. It is aimed at developers and platform teams who want their APIs to be discoverable by AI agents. The site shows no pricing, and the registry and tools are presented as open for anyone to use.