Felix for agent makers
Felix is the consent + audit + undo layer for the agentic web. Your agent calls felix.propose_repair instead of executing actions directly. The user sees a Fix card, taps Fix, gets a signed receipt, and can Undo within 24 hours. You stay out of the blast radius.
What you get
Compliance cover, cross-vendor distribution, and the consent surface built once.
Tiers
First-party (pre-registered): Anthropic Claude Desktop & Web, Anysphere Cursor, Block Goose. Reach out if you should be on this list.
Verified (self-serve): register a canonical name + Ed25519 public key + an agreement URL on your domain. Verified agents can earn autopilot grants.
Unverified: per-call user approval required; no autopilot.
Endpoints
https://mcp.heyfelix.io/sse — remote MCP for Claude Web, ChatGPT, etc.
~/Applications/Felix.app/Contents/MacOS/felix-mcp — local stdio MCP for on-device agents.
POST https://api.heyfelix.io/v1/agents/register — verified-tier registration. See protocol docs.
Integrity
Every agent's public key is mirrored at /.well-known/felix-agent-keys.json. Every receipt's signature can be verified at heyfelix.io/r/{receipt_id} in any browser, against the mirror at /.well-known/felix-public-keys.json.