Check the signature. Know its limits.
Paste anything Your Passport signed, or look an agent up by ID. You get a verdict and the reasons for it.

Public verification key
This issuer uses Ed25519. Pin a trusted public key to verify signatures offline; check live status before relying on authority.
- Fingerprint
- sha256:9UsNlhNXyXV-os_8GwpiMIsaVRxLwbkL
- Algorithm
- Ed25519
- Protocol
- v2
PEM · SubjectPublicKeyInfo
-----BEGIN PUBLIC KEY----- MCowBQYDK2VwAyEAfm+mrtlWKnTuVIqneItkbG/A2I5OuQaAskXjU8HIAmQ= -----END PUBLIC KEY-----
Check the fingerprint before pinning. Machines read the same key from /.well-known/passport.json.
What the key signs
Agent passports
One agent: key, owner, active grants, blast radius. Available at /p/{agentId} only when the owner publishes it.
passport.agentDecision receipts
Signed final allow or deny decisions. Pending requests and rejected inputs may have no receipt. Integrity is not execution permission.
passport.decisionCapability credentials
Portable grants: what an agent may do, under which caps, until when.
passport.capabilityAudit chain heads
A signature over the last hash. Change one event and it no longer verifies.
passport.audit-head
Actions this deployment understands
- Low risk · Your Passport executes
deploy:stagingDeploy to staging - High risk · Your Passport executes
deploy:productionPromote to production - Medium risk · Your runtime executes
purchasePurchase - Medium risk · Your runtime executes
toolUse a tool - Medium risk · Your Passport executes
httpCall an API
Anything not listed is rejected before policy runs.
Verify something now
A decision receipt
Pass the PEM and the receipt to the SDK. It checks signature, expiry and, if you ask, the action and decision.
import { verifyReceipt } from "@passport-ai/sdk"; const { valid, reason } = verifyReceipt(receipt, PASSPORT_PUBLIC_KEY_PEM, { action: "deploy:production", decision: "allowed", });An audit export
Export the log, run the checker with your pinned key. Offline.
node scripts/verify-audit.mjs export.json --key passport-public.pem
A capability credential
Post it to
/api/v1/credentials/verifyto also check revocation, or verify the signature offline with the same key. Formats:docs/protocol.md.
