Web Bot Auth

Directory

Signed agent operators with Web Bot Auth key directories — independently verified, one entity per page.

Each entry below links to a grounding page with verifiable facts: operator, key directory endpoint, algorithm, and verification date. Directory availability was checked directly against the published endpoints.

Entries are added when an operator publishes a machine-readable key directory or when cryptographic signing is documented by the operator or an independent implementation.

You.com — Entity page

Public key directory reachable. One Ed25519 key. First publicly verifiable operator found in our August 2026 scan.

Cloudflare Research (example server) — Entity page

Reference implementation with a live test environment. One Ed25519 test key. For implementers, not a production agent.

OpenAI — Entity page

Signing reported in production per ecosystem documentation. Public key directory not reachable at the standard path as of August 2026.

Anthropic — Entity page

Signing reported in production per ecosystem documentation. Public key directory not reachable at the standard path as of August 2026.

Google (crawling infrastructure) — Entity page

Documents experimental Web Bot Auth support for its crawlers. Public verification not possible as of August 2026.

Web Bot Auth (the standard) — Entity page

The IETF standard itself: architecture, status, and what it is not.