{"uid":"cap_kNOaesQ5KONcdMrUXGNg8","slug":"soren-erc-20-balance-reader-72401455","name":"Soren ERC-20 Balance Reader","description":"Read an ERC-20 balance with symbol, decimals and a formatted amount — one call, no ABI work, live from Base mainnet, for a fraction of a cent. No API key, no account — a wallet is the only requirement, and you are charged only if the read succeeds. Plain unsigned data; the attested version of chain reads is /v1/oracle/onchain. Answers are read at the moment of the call and stamped with the block they came from where applicable.","url":"https://soren.com/v1/chain/erc20-balance","method":"GET","headers":{},"bodySchema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["token","address"],"properties":{"token":{"type":"string","examples":["0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"],"description":"The ERC-20 contract address."},"address":{"type":"string","examples":["0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd"],"description":"The holder address."}}}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/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_MM6M1svafAonzczO67WVL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the ERC-20 token balance for a given wallet address on Base mainnet, including symbol, decimals, and a human-formatted amount — in a single call with no ABI work required.","exampleAgentPrompt":"What's the current USDC balance for wallet 0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd? The USDC contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 — give me the formatted amount, symbol, and decimals.","exampleUseCases":[{"title":"DeFi portfolio balance check","prompt":"Check how much USDC the wallet 0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd holds on Base — use the USDC contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 and show me the balance formatted with the right decimals."},{"title":"Verify token receipt after transfer","prompt":"I just sent some tokens and want to confirm they arrived — can you read the ERC-20 balance for token contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 at address 0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd on Base right now?"},{"title":"Agent treasury monitoring","prompt":"My agent's treasury wallet is 0xaDc3A47EFbD82Ed724a0E9A3D08D5A1A8e6586fd — what's the current balance of the token at contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base mainnet, with the symbol and human-readable amount?"}],"resultDescription":"Returns the ERC-20 token balance for the specified holder address, including: raw balance, human-formatted amount (adjusted for decimals), token symbol, token decimals, and the block number at which the balance was read. Returns a not-found or zero-balance result if the address holds none of the token.","failureModes":["Invalid ERC-20 contract address returns an error or zero data","Invalid holder address format causes a request error","Non-ERC-20 contract address (e.g. EOA or non-standard contract) may return unexpected results","Base mainnet node unavailability causes a read failure","Payment (x402) failure results in no charge and no data returned","Token contract with non-standard decimals may return unexpected formatted amounts"],"whenToPreferThis":"Choose this endpoint when you need a live, formatted ERC-20 balance from Base mainnet in a single call without writing or parsing ABI code. It is ideal for agents that need quick, human-readable token balances (symbol + formatted amount) without setting up a full Web3 stack. For attested/oracle-grade reads with cryptographic proof, use the sibling /v1/oracle/onchain endpoint instead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:49:25.193Z","isFirstParty":false}