{"uid":"cap_dqtmcuMljqOVloKYXdAwM","slug":"vextorium-erc-20-erc-721-token-supply-metadata-lookup-621ba5eb","name":"Vextorium ERC-20/ERC-721 Token Supply & Metadata Lookup","description":"totalSupply of an ERC-20 token or ERC-721 collection with name, symbol and decimals. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.","url":"https://api.vextorium.com/evm-suministro-pago?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"required":["contrato"],"properties":{"red":{"enum":["base","ethereum","arbitrum","optimism","polygon","bnb","avalanche","gnosis","linea","scroll","sonic","unichain"],"type":"string","description":"Chain (default base)"},"contrato":{"type":"string"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":["object","null"],"properties":{"red":{"type":["string","null"]},"nombre":{"type":["string","null"]},"simbolo":{"type":["string","null"]},"contrato":{"type":["string","null"]},"decimales":{"type":["number","null"]},"suministro":{"type":["number","null"]},"suministro_bruto":{"type":["string","null"]}}}}}}},"responseSchema":{"type":"json","example":{"red":"base","nombre":"USD Coin","simbolo":"USDC","contrato":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","decimales":6,"suministro":4349847314.410437,"suministro_bruto":"4349847314410437"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_gUU8bNZHFGSK0Ly-VugEm","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the totalSupply, name, symbol, and decimals of any ERC-20 token or ERC-721 collection on 12 supported EVM chains","exampleAgentPrompt":"What is the total supply, name, symbol, and decimals for the token at contract address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base?","exampleUseCases":[{"title":"Check USDC circulating supply on Base","prompt":"Can you tell me the total supply and token details for the USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base?"},{"title":"Verify NFT collection size before investing","prompt":"I want to know how many NFTs are in the collection at contract 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D on Ethereum — give me the name, symbol, and total supply."},{"title":"Audit token metadata across chains","prompt":"Look up the name, symbol, decimals, and total supply of the token at 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 on Polygon — I need to verify its metadata before listing it."}],"resultDescription":"A JSON object containing the chain name, token contract address, token name (nombre), symbol (simbolo), number of decimals, human-readable total supply (suministro), and raw integer total supply string (suministro_bruto).","failureModes":["Invalid or non-existent contract address returns null fields or error","Unsupported chain not in the enum list causes validation failure","Contract address that is not ERC-20 or ERC-721 may return null for name/symbol/supply","Network timeout or RPC node issues for the target chain","Malformed contract address (not checksummed EVM address) causes rejection"],"whenToPreferThis":"Use this endpoint when you need on-chain token metadata (name, symbol, decimals, totalSupply) for ERC-20 tokens or ERC-721 NFT collections across 12 major EVM networks including Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic, and Unichain. Prefer this over block explorer scraping or general RPC calls when you want a simple, paid API that abstracts multi-chain access and returns normalized, human-readable supply figures alongside the raw integer.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T18:40:40.636Z","isFirstParty":false,"canonicalSlug":"vextorium-erc-20-erc-721-token-supply-metadata-lookup-621ba5eb"}