{"slug":"presign-hergertsynthora-com-service-478a57","title":"Pre-sign security verdict for autonomous agents","host":"presign.hergertsynthora.com","method":"POST","resource":"https://presign.hergertsynthora.com/service","category":"company","description":"Pre-sign security verdict for autonomous agents: before an agent SIGNS and settles a transaction, get an allow/warn/block verdict with reasons. Decodes the calldata to catch UNLIMITED approvals (spender can drain the token without further signatures), and cross-checks the token (honeypot, mintable, ","price_listed":0.015,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"chain":"base","data":"0x095ea7b30000000000000000000000001111111111111111111111111111111111111111ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff","to":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"chain":{"description":"Chain (default base)","enum":["base","ethereum"],"type":"string"},"data":{"description":"Raw calldata (0x...) of the tx to be signed — decoded to detect unlimited approvals and the spender/recipient","type":"string"},"to":{"description":"Target contract of the tx to be signed (0x...); for approve/transfer this is the token being approved/moved","type":"string"},"token":{"description":"Token contract to verify before approving (0x...); use instead of to/data when you only want a token check","type":"string"}},"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"niche":{"type":"string"},"ok":{"type":"boolean"},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"Pre-sign security verdict for autonomous agents: before an agent SIGNS and settles a transaction, get an allow/warn/block verdict with reasons. Decodes the calldata to catch UNLIMITED approvals (spender can drain the token without further signatures), and cross-checks the token (honeypot, mintable, pausable, hidden owner, blacklist, buy/sell tax via GoPlus) and the spender/recipient (phishing, blacklist, sanctions via GoPlus address-security + Chainalysis + TRM). Use it as a last-mile guard before approving a token or signing a tx. Ed25519-signed provenance. 0.015 USDC on Base. POST {\"chain\":\"base\",\"to\":\"0x..\",\"data\":\"0x..\"} to verify a tx before signing, or {\"chain\":\"base\",\"token\":\"0x..\"} to verify a token before approving.","last_updated":"2026-09-12T17:21:43.738Z","schemes":["exact"]}