# Trust Check

> Crypto safety checks for AI agents on Base. Before you buy a token or send funds, ask Trust Check. Pay per check with x402 (USDC on Base), no signup. 5 free checks per day with the header "X-Free-Tier: 1". You are only charged when a check succeeds.

## Endpoints

- [Token check](https://trust-check.gm-tools.workers.dev/v1/token?address=0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed): Is this token safe to buy? $0.003 per check. A real buy + sell simulation on Base (catches honeypots and hidden taxes before you trade); Owner powers: can they mint, blacklist, change fees or pause?; Whale concentration and whether liquidity can be pulled; Scam-list checks, and a clear verdict: scam / high_risk / caution / low_risk, with reasons.
- [Address check](https://trust-check.gm-tools.workers.dev/v1/address?address=0x000000000000000000000000000000000000dEaD): Is this address safe to send funds to? $0.002 per check. Address-poisoning detection: is this a look-alike of an address you really use? (pass ?from=<your wallet>); Scam blacklists, burn addresses and token contracts where funds are lost forever; Never-used addresses flagged before you send.
- [MCP server](https://trust-check.gm-tools.workers.dev/mcp): tools check_token_safety and check_address_safety (Streamable HTTP).

## Verdicts

- scam: do not buy or send
- high_risk: avoid unless you understand the risks
- caution: review the warnings
- low_risk: no major red flags found (not a guarantee)

## Accuracy

- [Published benchmark](https://trust-check.gm-tools.workers.dev/benchmark.json): Trust Check's verdicts on real Base tokens, scored against answers that are certain: famous tokens, established tokens (7+ days old) that 20+ different wallets sold in the last day, rug pulls proven by the blockchain's own logs (liquidity added, traded, then 100% removed), and likely honeypots (people bought, nobody sold, and an independent sell simulation fails). Misses are included.
- [Trust page](https://agent-deals.gm-tools.workers.dev/trust): accuracy, live status and our promises for all GM Tools services.

## Details

- [OpenAPI spec](https://trust-check.gm-tools.workers.dev/openapi.json)
- [x402 manifest](https://trust-check.gm-tools.workers.dev/.well-known/x402.json)
- Payment: x402 v2, USDC on Base (eip155:8453). Unpaid requests get HTTP 402 with the price in the PAYMENT-REQUIRED header.
- Automated on-chain checks, not financial advice.