{"uid":"cap_7hszvg1Ht-yVoaCjJbrcu","slug":"crypto-market-pulse-base-usdc-stats-hash-utility-9d0d5e18","name":"Crypto Market Pulse & Base USDC Stats — Hash Utility","description":"Pay-per-call API for AI agents, settled in USDC on Base mainnet (eip155:8453) via the x402 protocol - no API keys, no signup, no subscription. Live crypto market data: BTC, ETH, SOL, USDC (USD Coin) prices with 24h change (source: OKX), Base mainnet chain snapshot (block height, gas price gwei), real-time USDC-on-Base transfer analytics (transfer count, volume, unique senders and recipients over recent blocks), and USDC/ETH wallet balances plus nonce for any address. Agent utility tools: deterministic JSON repair for LLM output (strip code fences, fix trailing commas, single quotes, unquoted keys, balance braces), DNS A/AAAA lookup, and URL extraction from arbitrary text. Every endpoint returns HTTP 402 with an x402 payment challenge in USDC on Base; pay with any wallet and retry with the PAYMENT-SIGNATURE header. MCP server at /mcp (streamable HTTP, 6 pay-per-call tools). Ideal for crypto portfolios, DeFi dashboards, market analysis agents, data pipelines, and LLM post-processing.","url":"https://baseusdcearn.pythonanywhere.com/util/hash?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"chain":{"chainId":8453,"network":"base-mainnet","blockHeight":21000000,"gasPriceGwei":0.05},"market":{"solana":{"usd":150,"usd_24h_change":-0.5},"bitcoin":{"usd":60000,"usd_24h_change":1.5},"ethereum":{"usd":3000,"usd_24h_change":2},"usd-coin":{"usd":1,"usd_24h_change":0}},"servedAt":1755430000}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0005","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":"$0.0005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_70wgrELr9HyyqARy2x7Hv","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a deterministic hash or utility computation via GET, part of a pay-per-call x402 suite offering crypto market data, Base chain stats, and agent utility tools","exampleAgentPrompt":"Hash this string for me using the Base USDC earn utility — I need a deterministic result and I'll pay the $0.0005 per call fee in USDC on Base: 'hello world'","exampleUseCases":[{"title":"Deduplication hash in data pipeline","prompt":"I need to hash each unique event ID in my DeFi data pipeline to deduplicate records — can you use the x402 hash utility to get me a deterministic hash for the string 'tx_event_20240601_abc123'?"},{"title":"LLM output fingerprinting","prompt":"After my agent generates a response, I want to fingerprint it for audit logging — please hash this text using the pay-per-call hash endpoint: 'Transfer 100 USDC to 0xABC...' so I can store the hash as a tamper-evident record."},{"title":"Content integrity check for crypto agent","prompt":"Can you compute a deterministic hash of this wallet address string '0x1234567890abcdef1234567890abcdef12345678' using the Base USDC earn utility so I can verify it hasn't been altered downstream in my pipeline?"}],"resultDescription":"A JSON response containing a deterministic hash or computed value for the provided input, returned after x402 micropayment settlement in USDC on Base mainnet.","failureModes":["HTTP 402 returned if payment header is missing or invalid — must include PAYMENT-SIGNATURE header with valid USDC payment on Base","Empty or malformed 'properties' parameter may return an error or unexpected hash output","Network timeout from PythonAnywhere hosting under high load","Invalid input type passed as properties string may cause computation failure"],"whenToPreferThis":"Choose this endpoint when you need a no-signup, no-API-key hashing utility that bills per call in USDC on Base via the x402 protocol, especially in AI agent pipelines already using x402 payment infrastructure. It is most appropriate for crypto/DeFi agents that need lightweight utility functions alongside market data and chain stats from the same provider.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T00:31:13.049Z","isFirstParty":false,"canonicalSlug":"crypto-market-pulse-base-usdc-stats-hash-utility-9d0d5e18"}