{"uid":"cap_SNdkdHSwIKaPBPek4jzqA","slug":"limitguard-wallet-balance-check-e4943eef","name":"LimitGuard Wallet Balance Check","description":"ERC-8004 agent wallet balance check. Returns the on-chain USDC balance (Base mainnet) for a registered ERC-8004 agent wallet.","url":"https://api.limitguard.ai/v1/wallet/balance?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","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["agent_id"],"properties":{"agent_id":{"type":"string","description":"Agent wallet address (EVM 0x + 40 hex chars, Base mainnet); must be registered in the ERC-8004 Identity Registry"}}}},"additionalProperties":false}}},"responseSchema":{"type":"json","example":{"chain":"base","agent_id":"0x1234567890abcdef1234567890abcdef12345678","currency":"USDC","balance_raw":150500000,"balance_usdc":150.5,"last_updated":1757894400}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.11","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.11","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Cv-AEGP0MSzc_7vlMEKf0","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.11","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the USDC balance and transaction count for an ERC-8004 AI agent wallet by agent identifier.","exampleAgentPrompt":"Can you check the current USDC balance and transaction count for AI agent wallet agent-0xabc123 using LimitGuard?","exampleUseCases":[{"title":"Verify agent has funds before delegation","prompt":"Before I assign this data processing task to agent-0x7f2e9d, can you check if it has enough USDC in its wallet and how active it's been?"},{"title":"Monitor autonomous agent spending patterns","prompt":"I need to keep tabs on our fleet of agents. Can you pull the USDC balance and transaction history for agent-0xf4c2a8 so I can see if it's spending within expected parameters?"},{"title":"Validate agent trustworthiness for payment","prompt":"We're about to send a significant amount of USDC to agent-0x9b1e5c for a market making task. Can you quickly check its wallet balance and how many transactions it's completed so far?"}],"resultDescription":"Returns a JSON object containing the agent wallet's current USDC balance (e.g. 150.5 USDC) and the total number of transactions the wallet has made (e.g. 42).","failureModes":["Invalid or unknown agent_id returns an error or empty result","Agent wallet not yet registered in ERC-8004 registry returns not-found error","Network or provider outage causes timeout","Malformed agent_id format causes validation error","Insufficient payment (x402) causes 402 Payment Required response"],"whenToPreferThis":"Use this endpoint when you need to quickly check an AI agent wallet's USDC balance and transaction history count before authorizing inter-agent payments, delegating tasks, or assessing agent financial activity. Prefer this over full compliance or trust-score endpoints when only balance/transaction data is needed and you want a lightweight, low-cost check.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T19:02:14.256Z","isFirstParty":false,"canonicalSlug":"limitguard-wallet-balance-check-e4943eef"}