Submit an ownership-challenge signature (public)
Agents
Submit an ownership-challenge signature (public)
Completes an ownership proof issued from the Backed dashboard. The signature must be over the challenge message with the private key behind the agent’s AP2 identity: EIP-191 personal_sign for did:pkh:eip155 identities, raw ed25519 for did:key. No API key is required — the unguessable challenge id plus a valid signature from the identity’s key is the proof. This is the submit half of npx backed-mcp verify-agent, for operators whose key lives server-side.
POST
Submit an ownership-challenge signature (public)