{"uid":"cap_77F-FcmvVvFqvQkkPIde4","slug":"token-risk-check-watchlist-batch-822f81ea","name":"Token Risk Check (Watchlist Batch)","description":"Re-check up to 5 tokens you hold or watch in one call, on Base, Ethereum, Arbitrum, Optimism, Polygon or Solana: each token's 0-100 risk score, level, reason codes, price, liquidity and a fingerprint. Send the fingerprints back as since to get what changed (new risks, owner or authority changes, liquidity or price moves of 10%+) and a short list of alerts. One price for the whole list, made for polling positions on a schedule. Rules-based, not advice.","url":"https://onchaincheck.dev/watchlist?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["tokens"],"properties":{"since":{"type":"string","pattern":"^[A-Za-z0-9_,-]*$","maxLength":5100,"description":"Fingerprints from an earlier call, comma-separated in the same order as tokens (empty for a new token)"},"tokens":{"type":"string","pattern":"^[A-Za-z0-9:,]{3,400}$","description":"Up to 5 chain:address pairs, comma-separated (chains: base, eth, arbitrum, optimism, polygon, solana); a bare address defaults to solana for base58, otherwise base"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"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_X7GzmIhsQluT-yZJ1Hwy0","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":"Batch-checks up to 5 tokens across Base, Ethereum, Arbitrum, Optimism, Polygon, or Solana for risk scores, price, liquidity, and delta alerts in a single call optimized for scheduled polling.","exampleAgentPrompt":"Check the risk scores and prices for these five tokens I'm watching — eth:0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48, base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, solana:EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v — and flag anything that changed since my last fingerprints.","exampleUseCases":[{"title":"DeFi portfolio daily risk scan","prompt":"Run a risk check on these three tokens I hold — base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, eth:0xdAC17F958D2ee523a2206206994597C13D831ec7, arbitrum:0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC2 — and tell me their risk scores, levels, and any reason codes flagged."},{"title":"Watchlist change detection since last poll","prompt":"Poll my token watchlist for what changed since my last check — tokens are solana:EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v and base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, and here are the fingerprints from the last call: abc123,def456. Show me any alerts about new risks, liquidity drops, or authority changes."},{"title":"Pre-trade multi-chain token safety check","prompt":"Before I buy, quickly check the risk scores and liquidity for these two tokens — optimism:0x7F5c764cBc14f9669B88837ca1490cCa17c31607 and polygon:0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 — and flag anything that looks dangerous."}],"resultDescription":"Returns an array of per-token objects each containing: a 0-100 risk score, a risk level label, an array of reason codes explaining the risk, current price, liquidity, and a fingerprint string. Also returns a short list of alerts for any tokens where the fingerprint (since) indicates something changed — new risk codes, ownership or authority changes, or price/liquidity moves of 10% or more.","failureModes":["Invalid or malformed chain:address pair returns an error for that token slot","More than 5 tokens in the tokens parameter results in a validation error","Mismatched number of fingerprints vs tokens in the since parameter causes a mismatch error","Unsupported chain identifier returns an error indicating valid chains","Address not found on the specified chain returns a not-found result for that token","Payment failure (x402) if the $0.01 USDC payment is not provided or rejected"],"whenToPreferThis":"Choose this endpoint when you need to monitor or risk-check multiple tokens (up to 5) in a single low-cost call, especially for scheduled polling of a watchlist. The fingerprint/since delta mechanism makes it ideal for agents that need to detect changes since the last poll without reprocessing unchanged data. Prefer this over single-token endpoints when managing a portfolio or watchlist across multiple chains simultaneously.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T12:50:11.057Z","isFirstParty":false,"canonicalSlug":"token-risk-check-watchlist-batch-822f81ea"}