{"uid":"cap_T2JAVJIKpHGBCBlH9Pjtu","slug":"presign-guard-token-safety-checker-5f247f29","name":"presign-guard Token Safety Checker","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. Bulk: 100 checks for $0.80 via /v1/credits.","url":"https://presign-guard.fizzl.eu/v1/token?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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","xrpl","algorand"],"type":"string","description":"Chain the token lives on"},"address":{"type":"string","description":"Solana mint address (base58), EVM token contract (0x...), an XRPL token as CURRENCY.rIssuer (e.g. RLUSD.rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De), or an Algorand asset id (e.g. 31566704)"}}}},"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_rmQcmXy2HF8vq-eUs_Oum","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":"Analyzes a Solana or EVM token for honeypot, rug pull, and other risk signals, returning a SAFE/CAUTION/RISKY/AVOID grade with reasons and market data","exampleAgentPrompt":"Before I buy, can you check if this Solana token at mint address 7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU is safe — look for honeypot signals, rug pull risks, locked LP, and give me a SAFE/RISKY grade with the reasons?","exampleUseCases":[{"title":"Pre-buy honeypot check on new token","prompt":"I'm about to ape into this new Ethereum token at 0x6982508145454Ce325dDbE47a25d4ec3d2311933 — can you run a safety check and tell me if it's a honeypot, if LP is locked, and whether there are any red flags I should know about?"},{"title":"Solana memecoin rug pull scan","prompt":"Someone sent me a Solana token contract DezXAZ8z7PnrnRJjz3wXBoRgixCa6xjnB7YaB1pPB263 — is it a rug pull or safe to hold? Check for mint authority, freeze authority, concentrated holders, and give me the grade."},{"title":"DeFi agent token acceptance filter","prompt":"Before my bot accepts this BSC token at 0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c as payment, can you verify it's not AVOID-grade — check liquidity, buy/sell tax, and whether the LP is locked?"}],"resultDescription":"Returns a verdict object with a grade (SAFE, CAUTION, RISKY, or AVOID), a one-liner summary, an array of reason objects each with a code, severity (red/orange/info), and optional details, plus market data from DexScreener including price, liquidity, market cap, 24h volume, and token age. Also includes a signed receipt for proof of check.","failureModes":["Unknown or unlisted token returns no market data (market field null)","Invalid chain/address combination returns error","Token too new to have DexScreener data — market data absent","Unsupported chain returns validation error","Network timeout from upstream DexScreener or on-chain RPC","Payment not processed results in 402 response"],"whenToPreferThis":"Use this endpoint when an AI agent needs to autonomously assess token safety before executing a buy, accepting a token as payment, or recommending a token to a user — especially for newly launched tokens on Solana, Base, Ethereum, Arbitrum, Optimism, Polygon, or BSC. Prefer this over manual blockchain explorers when you need a structured, graded risk signal with specific red-flag codes rather than raw on-chain data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T06:40:26.443Z","isFirstParty":false,"canonicalSlug":"presign-guard-token-safety-checker-5f247f29"}