TrustAgent

Sanctions screening for a crypto wallet before you pay it: checks the address, and an agent's owner and payout wallet, against OFAC SDN-listed EVM addresses, then returns a 0-100 trust score, risk band and proceed / hold / block from on-chain history and sybil-filtered ERC-8004 reputation. Every flag and score component is itemized; insufficient_data instead of a guess. Base. Free: GET /v1/verify. Trial: /v1/trial.

Smart contract security check before you approve or pay an address: reads the bytecode, behind proxies too, for privileged functions (mint, pause, blacklist, upgrade), dangerous opcodes and protocol type, and checks whether a single key holds those powers. Adds OFAC SDN screening, who funded the address, sybil-filtered ERC-8004 reputation for agents and a 0-100 score with proceed / hold / block. Static analysis, not an audit. Free: GET /v1/verify. Trial: /v1/trial.

OFAC sanctions list updates as a feed: every SDN designation and delisting of an EVM crypto address since a timestamp you supply, with the listing reason and when it was recorded. No address list to send; match it against your own counterparty book locally, so the service never learns which addresses are yours. Poll it and pass the returned checkedAt back as since. Free: GET /v1/watch. Trial: /v1/trial.

Is this x402 endpoint safe to pay? Reads its payment challenge (v1 body and v2 PAYMENT-REQUIRED header), lists every offer, then screens the payout wallet: OFAC SDN check, 0-100 trust score, risk band and proceed / hold / block with itemized flags. Flags offers that name different recipients. It scores the wallet that gets paid, not the service behind the URL. Free: GET /v1/endpoint. Trial: /v1/trial.

ERC-8004 agent reputation with sybil filtering: reviewers are clustered by who funded them and each cluster counts once, so reviewers paid for from one wallet count as one vote. Returns feedback and reviewer counts, independent clusters, the sybil-flagged share, counts by evidence class (payment proof, task link, none) and per-tag means, and refuses to average tags with conflicting scales. Base. Free: GET /v1/verify. Trial: /v1/trial.

Sanctions monitoring for wallets you already screened: send up to 50 addresses and a since timestamp, get every OFAC SDN designation or delisting that touched them since then, plus when the list was last synced and whether the change log reaches back that far. Stateless: nothing is stored or pushed; pass the returned checkedAt back as since. Free: GET /v1/watch. Trial: /v1/trial.

ERC-8004 agent directory filtered to what is live: registrations classified by a continuous census of the Base registry, filterable by quality (for example a valid file with a declared service) and by x402 support. Each row has the agent id, owner, payout wallet, what it declares (name, endpoint, skills) and a funding cluster shared with agents paid for from the same account. 100 per page. Free: GET /v1/registry. Trial: /v1/trial.

Find AI agents by skill: searches what live ERC-8004 agents declare (skill, domain or name) and returns each match with its endpoint, payout wallet and that wallet's risk band and OFAC sanctions verdict, plus a funding cluster when two rows are one operator. Optionally only agents that accept x402. 100 per page. Base. Free: GET /v1/search. Trial: /v1/trial.

Where did this address get its money? Walks the funding chain upward and returns the account that ultimately paid for the wallet, plus a cluster id. Two addresses funded from the same account are not independent parties, however unremarkable each looks alone — the cheapest strong signal that an identity was manufactured. Works on any address, not only registered agents. Free alternative: GET /v1/provenance. Trial: 3 free calls/wallet/24h — https://trust-agent.io/v1/trial.

Honeypot check for a Base token: can you sell it after you buy? Simulates a buy and a sell on its Uniswap v2, v3 or v4 or Aerodrome pool and returns sellable, high_tax, honeypot or unknown, both taxes and the pool, plus the owner powers in its code, proxies included (mint, blacklist, pause, fee changes, upgrade), and whether one key holds them. A simulation at one block, not an audit; unknown, never a guess, and no charge if our node fails. Free: GET /v1/token. Trial: /v1/trial.

Screen up to 10 addresses in one call: OFAC sanctions check, trust score, risk band and recommendation for each. For vetting a counterparty set before a run of payments, maintaining an allowlist, or auditing wallets you already pay. Free alternative: GET /v1/verify. Trial: 3 free calls/wallet/24h — https://trust-agent.io/v1/trial.