{"uid":"cap_Pu1XMI-stDzz_U4HnX2vM","slug":"crypto-market-pulse-base-usdc-stats-uuid-utility-5878a5a1","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://cryptopulse.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_UaIwKUVbmnhea65y6le3W","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 as a utility tool, part of a pay-per-call crypto market data and agent utility API settled in USDC on Base via x402","exampleAgentPrompt":"Can you generate a fresh UUID for me to use as a correlation ID in my current workflow — pay with USDC on Base if needed?","exampleUseCases":[{"title":"Unique ID for agent pipeline deduplication","prompt":"I need a fresh UUID to tag this batch job so I can deduplicate results later — grab one from the CryptoPulse utility endpoint, paying in USDC on Base."},{"title":"Correlation ID for DeFi dashboard requests","prompt":"Generate a UUID I can use as a correlation ID to trace this market data request through my DeFi dashboard logs."},{"title":"Request token for LLM workflow tagging","prompt":"Get me a unique identifier to attach to this LLM output so I can track it through my post-processing pipeline."}],"resultDescription":"Returns a UUID string as part of a JSON response, suitable for use as a unique identifier in agent workflows, deduplication, or request tagging. The call is gated by an x402 HTTP 402 payment challenge requiring $0.0005 USDC on Base mainnet before the UUID is returned.","failureModes":["HTTP 402 returned if payment signature header is missing or invalid — agent must pay with USDC on Base and retry with PAYMENT-SIGNATURE header","Network timeout if PythonAnywhere host is slow or unavailable","Unexpected non-JSON response if server encounters an unhandled error","Payment confirmation delay if Base mainnet is congested"],"whenToPreferThis":"Choose this endpoint when you need a lightweight UUID generation utility within an agent pipeline that already uses the CryptoPulse x402 ecosystem for crypto market data or USDC analytics, and you want a single pay-per-call model without API keys or subscriptions. Not ideal if you just need a UUID locally — standard libraries (uuid4) are free and instant. Best when bundled with other CryptoPulse calls in the same workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:41:37.791Z","isFirstParty":false,"canonicalSlug":"crypto-market-pulse-base-usdc-stats-uuid-utility-5878a5a1"}