{"uid":"cap_oMXGaZ291Jsz1tn-uJNpy","slug":"presign-guard-token-verdict-d403ecdf","name":"Presign Guard Token Verdict","description":"Is this token safe to buy, or a honeypot or rug pull? Checks a Solana or EVM token before you buy, hold or accept it (mint or freeze authority still active, LP not locked, buy/sell tax, low liquidity, brand-new token, concentrated holders) and answers green/orange/red with a grade (SAFE/CAUTION/RISKY/AVOID), the reasons, a one-line summary and market data","url":"https://presign-guard.onrender.com/v1/token?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["chain","address"],"properties":{"chain":{"enum":["solana","base","ethereum","arbitrum","optimism","polygon","bsc"],"type":"string","description":"Chain the token lives on"},"address":{"type":"string","description":"Solana mint address (base58) or EVM token contract (0x...)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["verdict","grade","one_liner","reasons"],"properties":{"grade":{"enum":["SAFE","CAUTION","RISKY","AVOID"],"type":"string"},"token":{"type":"object"},"market":{"type":["object","null"],"description":"DexScreener data: priceUsd, liquidityUsd, marketCapUsd, volume24hUsd, firstPairAt, ageSeconds, url"},"reasons":{"type":"array","items":{"type":"object","required":["code","severity"],"properties":{"code":{"type":"string"},"details":{},"severity":{"enum":["red","orange","info"],"type":"string"}}}},"receipt":{"type":"object","required":["request_id","route","input_sha256","signed_at","signer","algorithm","signature"],"properties":{"cert":{"type":"object","properties":{"signer":{"type":"string"},"service":{"type":"string"},"authority":{"type":"string"},"signature":{"type":"string"},"valid_from":{"type":"string"}},"description":"The payout wallet's certificate for this signing key: personal_sign by authority over 'fizzl receipt signer\\nservice: <service>\\nsigner: <signer>\\nvalid_from: <date>'. Pin the payout wallet and a rotated key still verifies."},"route":{"type":"string"},"signer":{"type":"string"},"payment":{"type":"object","properties":{"asset":{"type":"string"},"nonce":{"type":"string"},"payer":{"type":"string"},"proof":{"enum":["eip3009","svm-transaction"],"type":"string"},"amount":{"type":"string"},"pay_to":{"type":"string"},"network":{"type":"string"},"transaction_sha256":{"type":"string"}},"description":"The payment behind this answer, from your x402 payment payload. EVM: payer + EIP-3009 nonce; find the settlement as AuthorizationUsed(payer, nonce) on the asset contract. Solana: payer + sha256 of the signed transaction you sent."},"algorithm":{"enum":["eip191-canonical-json-v1"],"type":"string"},"signature":{"type":"string"},"signed_at":{"type":"string"},"request_id":{"type":"string"},"input_sha256":{"type":"string","description":"sha256 of canonical JSON {route, input}: your body (POST) or query parameters (GET)"}},"description":"Signature over this whole answer (without receipt.signature), so the verdict can be verified later: EIP-191 personal_sign over canonical JSON (sorted keys, compact, ASCII-escaped). Signer addresses: /.well-known/presign-guard-signer.json; free check: POST /v1/verify."},"sources":{"type":"array","items":{"type":"string"}},"verdict":{"enum":["green","orange","red"],"type":"string"},"checkedAt":{"type":"string"},"one_liner":{"type":"string"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_1_xH8ScnFrhN1miLXJuDY","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a safety verdict (green/orange/red, SAFE/CAUTION/RISKY/AVOID grade, reason codes, and market data) for a Solana or EVM token address","exampleAgentPrompt":"Can you run a safety check on this Solana token — mint address is 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU — and tell me if it's safe to buy, what grade it gets, and any red flags like mint authority or honeypot?","exampleUseCases":[{"title":"Memecoin rug pull check before buying","prompt":"Before I ape into this new Solana memecoin at address EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v, can you check if it's a rug pull risk — look at LP lock, holder concentration, and whether anyone can mint more tokens?"},{"title":"EVM token honeypot detection","prompt":"I found an EVM token on Ethereum at 0xdAC17F958D2ee523a2206206994597C13D831ec7 — can you check if it's a honeypot and what the buy/sell tax looks like before I trade it?"},{"title":"DeFi due diligence for new token listing","prompt":"We're considering listing this Solana token So11111111111111111111111111111111111111112 on our platform — can you give me a full safety verdict with grade and all the reason codes so I can decide if it's appropriate?"}],"resultDescription":"Returns a structured verdict containing: a color signal (green/orange/red), a letter grade (SAFE/CAUTION/RISKY/AVOID), an array of reason codes flagging specific risks (e.g. MINT_AUTHORITY, HONEYPOT, HIGH_TAX, UNLOCKED_LP, LOW_LIQUIDITY, OLD_AGE, HIGH_CONCENTRATION), a human-readable one-line summary of the risk assessment, and supporting market data such as liquidity amount, token age, holder distribution, and tax rates.","failureModes":["Invalid or unrecognized token address returns an error","Unsupported blockchain network returns unsupported chain error","Token too new or with no on-chain data may return incomplete analysis","Rate limiting or payment failure (x402) if USDC payment is not included","Network timeout if on-chain data sources are slow","Token with no liquidity pool may return limited verdict data"],"whenToPreferThis":"Use this endpoint when you need a comprehensive, multi-factor token safety verdict covering both Solana and EVM chains in a single call. It combines honeypot detection, mint/freeze authority checks, LP lock status, tax analysis, liquidity, age, and holder concentration into one graded verdict — ideal for pre-trade due diligence, DeFi agent workflows, or automated token screening pipelines. Prefer this over single-factor checkers when you need a holistic SAFE/CAUTION/RISKY/AVOID grade with human-readable reason codes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T06:34:34.350Z","isFirstParty":false,"canonicalSlug":"presign-guard-token-verdict-d403ecdf"}