# X402 Passport Lookup

> X402 Passport Lookup is a paid API for AI agents from api.x402passport.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-20).

Retrieves an x402 passport record associated with a given wallet address, returning on-chain identity or access credentials gated by a $0.05 USDC micropayment.

## Facts

- Endpoint: GET https://api.x402passport.xyz/v1/x402/passport/:wallet?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-passport-lookup-5f108eda
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iVhPFVJ3m1KaxYkZW8Z8-

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability x402-passport-lookup-5f108eda
```

Example prompt: Look up the x402 passport for wallet address 0xAbC123... and tell me what credentials or identity data comes back.

## When to prefer this

Use this endpoint when you need to resolve x402 passport identity or credentials for a specific wallet address in a Web3 or agent context. It is purpose-built for the x402 protocol and suited for access control checks, identity verification, and credentialing workflows where wallet-based identity is the primary signal.

## Known failure modes

- Wallet address not found — no passport record exists for that wallet
- Invalid wallet address format — malformed address returns 400 or validation error
- Payment failure — $0.05 USDC micropayment not fulfilled results in 402 Payment Required
- Rate limiting — too many requests from the same source
- Passport expired or revoked — wallet exists but credentials are no longer valid

## How this service works

Paid x402 passport endpoint

## Output

Returns the x402 passport record associated with the queried wallet address, which may include identity credentials, access rights, on-chain attestations, or passport status information tied to the x402 protocol.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-passport-lookup-5f108eda/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402passport.xyz](https://www.zero.xyz/host/api.x402passport.xyz/llms.txt)