{"uid":"cap_tOHt6mdJpMA2-7ZzzSbEW","slug":"quickbuild-base-token-verdict-3a8f99ed","name":"QuickBuild Base Token Verdict","description":"Fixed documented point rules (returned in rules[]) over live public Base RPC reads, Blockscout and the free GeckoTerminal API (liquidity, volume, FDV, price change, top pool). Unavailable values are null and not scored (listed in unknown[]). No LLM. Every response has disclaimer: \"informational only, not investment advice\". Not a contract = 404, invalid = 400, never charged.","url":"https://quickbuild.quynguyenbac.workers.dev/api/base/token-verdict?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":[],"properties":{"address":{"type":"string","description":"0x ERC-20 token address on Base (default USDC)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"flags":{"type":"array","items":{"type":"string"}},"grade":{"enum":["A","B","C","D","F"],"type":"string"},"rules":{"type":"array","items":{"type":"string"}},"score":{"type":"integer"},"metrics":{"type":"object"},"unknown":{"type":"array","items":{"type":"string"}},"oneLiner":{"type":"string"},"disclaimer":{"type":"string"}}}}}}},"responseSchema":{"type":"json","example":{"flags":["-5 owner not renounced","-10 upgradeable proxy","+30 well-known major Base token"],"grade":"A","score":100,"symbol":"USDC","address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","chainId":8453,"metrics":{"fdvUsd":4305533689,"ageDays":1076.3,"liquidityUsd":144797093,"volume24hUsd":750954215},"disclaimer":"informational only, not investment advice"}},"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_sz47FngYo1-VtcxRwkdkb","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":"Scores and grades an ERC-20 token on Base mainnet using on-chain data and market metrics, returning a letter grade, rule-based flags, and key DeFi metrics.","exampleAgentPrompt":"Can you run a verdict on this Base token at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 — I want to see the grade, score, flags, and any liquidity or FDV metrics you can pull?","exampleUseCases":[{"title":"Vetting a new DeFi token","prompt":"I found a new token on Base at 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed — can you get me a safety verdict with a grade and any red flags before I buy in?"},{"title":"Comparing token health before LP deposit","prompt":"Before I add liquidity, can you score the token at 0x940181a94A35A4569E4529A3CDfB74e38FD98631 on Base and tell me its grade, volume, and top pool?"},{"title":"Monitoring a portfolio token periodically","prompt":"Check the current verdict and letter grade for the Base token 0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb — I want to know if its score or flags have changed since last week."}],"resultDescription":"Returns a JSON object with: a letter grade (A–F), an integer score, a rules[] array listing which scoring rules fired, a flags[] array of qualitative risk signals, a metrics object with liquidity, volume, FDV, price change, and top pool data (null for unavailable values), an unknown[] array listing metrics that could not be fetched, a short oneLiner summary, and a disclaimer stating results are informational only and not investment advice. Returns 404 if the address is not a contract, 400 if the address is invalid.","failureModes":["404 if address is not a deployed contract on Base","400 if address is malformed or not a valid 0x address","Null values in metrics for data unavailable from GeckoTerminal or Blockscout","Network timeouts from upstream RPC or third-party APIs","Stale or incomplete market data for low-liquidity tokens"],"whenToPreferThis":"Use this endpoint when you need a fast, rule-based, no-LLM token risk assessment for any ERC-20 on Base mainnet, especially when you want structured grades and flags alongside raw DeFi metrics (liquidity, FDV, volume, price change). Prefer this over generic block explorers when you want an opinionated score rather than raw data, and over AI-generated advice when you need deterministic, auditable rules.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-02T12:30:42.154Z","isFirstParty":false,"canonicalSlug":"quickbuild-base-token-verdict-3a8f99ed"}