{"uid":"cap_wQg42Fxk13t2zT-84b__d","slug":"crypto-market-pulse-base-usdc-stats-uuid-utility-a1baf374","name":"Crypto Market Pulse & Base USDC Stats – UUID 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/uuid?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_48yH4mAgormIZDfI5jRa4","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":"Generates a deterministic or random UUID, accessible via pay-per-call x402 micropayment settled in USDC on Base mainnet","exampleAgentPrompt":"Can you generate a fresh UUID for me to use as a unique record key — paid via my USDC wallet on Base?","exampleUseCases":[{"title":"Unique ID for database record","prompt":"I need a new UUID to use as a primary key for a record I'm inserting into my database — can you grab one for me?"},{"title":"Session correlation token generation","prompt":"Generate a UUID I can use as a correlation ID to trace this user session across my microservices."},{"title":"Idempotency key for payment flow","prompt":"I need a unique UUID to use as an idempotency key before I submit this payment request — can you get one?"}],"resultDescription":"A single UUID string (version unspecified) returned as JSON, suitable for use as a unique identifier in databases, sessions, or distributed system correlation — accessed after paying $0.0005 USDC via the x402 protocol on Base mainnet.","failureModes":["HTTP 402 returned if payment has not been made or payment signature is missing/invalid","Payment signature header malformed or expired leads to rejection","Network errors on PythonAnywhere hosting may cause 5xx responses","Base mainnet congestion could delay payment confirmation"],"whenToPreferThis":"Choose this endpoint when your agent already operates in a USDC-on-Base x402 payment environment and needs a UUID without setting up a separate API key or library — it bundles UUID generation into the same pay-per-call micropayment flow used by the broader Crypto Market Pulse suite.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:34:22.483Z","isFirstParty":false,"canonicalSlug":"crypto-market-pulse-base-usdc-stats-uuid-utility-a1baf374"}