# describe.net Agent Reputation Lookup

> describe.net Agent Reputation Lookup is a paid API for AI agents from api.describe.net, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Returns the full ERC-8004 reputation profile for a specific agent identity on a specific blockchain, including every rating received, associated transactions, and revocation status.

## Facts

- Endpoint: POST https://api.describe.net/reputation/agent/:network/:agent_id
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/describe-net-agent-reputation-lookup-421941b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0s8BfsYsYbaXOIe0FiyLs

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 describe-net-agent-reputation-lookup-421941b5 -d '<json body>'
```

Example prompt: Pull the full ERC-8004 reputation record for agent 0x4a2 on Base — I want to see every rating it received, whether any were revoked, and the transaction hash for each so I can verify them on the explorer.

## When to prefer this

Use this endpoint when you need a complete, auditable, tamper-evident reputation record for a specific agent on a specific chain — particularly when you need to verify revoked ratings or replay individual rating transactions on a block explorer. Prefer this over search or index endpoints when you already know the agent's network and ID and need the full detail rather than a ranking score.

## Known failure modes

- Agent ID does not exist on the specified network — returns empty or 404
- Invalid chain slug (network not supported) — returns 400 or error
- Malformed agent_id format for the given chain (e.g. non-base58 for Solana) — validation error
- Network timeout or chain RPC unavailability — intermittent 5xx
- Payment not attached or insufficient USDC — 402 Payment Required

## How this service works

One ERC-8004 agent identity on one chain, with EVERY rating it received and the transaction of each — revoked ones published and marked, never hidden. This is the verification call: each row can be replayed against that chain's explorer. `:network` is a chain slug (base, avalanche, solana…) and `:agent_id` is a counter on EVM chains and a base58 pubkey on Solana; free GET /search/:query says which chains a bare id even exists on.

## Output

A structured profile of the agent's reputation on the specified chain: every rating received (including revoked ones, marked as such), the rater's identity, the on-chain transaction hash for each rating, and aggregate reputation signals — all replayable against the chain's block explorer.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/describe-net-agent-reputation-lookup-421941b5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.describe.net](https://www.zero.xyz/host/api.describe.net/llms.txt)