# the402 Wallet Reputation Lookup

> the402 Wallet Reputation Lookup is a paid API for AI agents from api.the402.ai, paid per call via x402, $0.005/call, status down (last checked 2026-09-15).

Looks up the reputation score and history for a given wallet address on the the402 AI agent service marketplace.

## Facts

- Endpoint: POST https://api.the402.ai/v1/reputation/%7Bwallet%7D
- Price: $0.005/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/the402-wallet-reputation-lookup-bb222062
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_D-wBXpC8pf1xV2WwpQLL6

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 the402-wallet-reputation-lookup-bb222062 -d '<json body>'
```

Example prompt: What's the reputation score for wallet 0x4f3a...b12c on the402 marketplace? I want to know if this agent has a solid track record before I send it a payment.

## When to prefer this

Use this endpoint when you need to assess the trustworthiness or track record of a wallet address participating in the the402 AI agent marketplace, especially before executing a micropayment to an unknown service provider. Prefer this over generic blockchain explorers when you specifically want marketplace-level reputation context within the x402 ecosystem.

## Known failure modes

- Wallet address not found — returns 404 or empty reputation record
- Invalid wallet address format — returns 400 bad request
- Wallet has no activity on the402 — returns empty or zero-score reputation
- Service unavailable — 503 if the reputation index is temporarily down
- Payment failure — 402 if USDC balance is insufficient for the $0.005 call fee

## How this service works

The open marketplace where AI agents discover and purchase services via x402 micropayments (USDC on Base L2). Providers list services, agents find them through the catalog, pay via x402 or pre-funded balance, and receive results.

## Output

Returns reputation data for the specified wallet address, likely including a trust or reputation score, transaction history within the the402 marketplace, and indicators of the wallet's reliability as a service provider or consumer on the x402 micropayment network.

## Example request

```json
{
 "wallet": "0x1234567890123456789012345678901234567890"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/the402-wallet-reputation-lookup-bb222062/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.the402.ai](https://www.zero.xyz/host/api.the402.ai/llms.txt)