{"uid":"cap_no23oxvdY12iT-aGAJ5Z1","slug":"x402-gateway-pay-per-call-mcp-on-base-via-coinbase-cdp-x402-f98eb185","name":"x402-gateway — Pay-per-call MCP on Base via Coinbase CDP x402","description":"From $0.002 per call. No accounts, no keys, no subscriptions. Your agent sees the exact price before paying, and failed calls are never charged. Company enrichment, blockchain data, ZK proofs, SEO and media — settled in USDC on Base.","url":"https://x402.freeq.one/tools?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","description":"JSON request body. See GET /tools for the parameter catalog."},"type":{"type":"string","const":"http"},"method":{"enum":["POST"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"toolName":{"type":"string"},"transport":{"type":"string"},"description":{"type":"string"},"queryParams":{"type":"object","additionalProperties":{"type":"string"}},"mcpServerUrl":{"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","properties":{"result":{"description":"Tool output (JSON)"}}}}}}},"responseSchema":{"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_fPLAuFloILjofh2YWnqvL","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"A pay-per-use MCP gateway exposing 15 tools (including markdown, token prices, wallet portfolio, whale alerts, and more) over the x402 payment protocol on Base, requiring no accounts, logins, or API keys.","exampleAgentPrompt":"Use the x402 pay-per-call gateway to fetch the current price of ETH — no API key needed, just pay $0.001 USDC per call via the x402 protocol on Base.","exampleUseCases":[{"title":"Crypto token price lookup","prompt":"Fetch the current price of SOL using the x402 gateway — I want to pay per call in USDC without setting up an account."},{"title":"Wallet portfolio check","prompt":"Pull the full portfolio breakdown for my wallet address 0xABC123... using the x402 pay-per-use gateway on Base."},{"title":"Whale alert monitoring","prompt":"Get the latest whale alert data for large BTC transfers using the x402 gateway — just charge me $0.001 USDC per query, no subscription needed."}],"resultDescription":"Returns a JSON object containing the structured output of the invoked tool — e.g. token prices, wallet balances, whale alerts, rendered markdown, generated images, or verification results, depending on which of the 15 tools was called.","failureModes":["Insufficient USDC balance causes payment failure and 402 response","Invalid or malformed request body returns a 400 error","Unsupported body type (not json/form-data/text) causes validation failure","Network or RPC issues on Base may cause payment timeouts","Calling a tool with incorrect parameters returns a tool-specific error response"],"whenToPreferThis":"Choose this endpoint when you need frictionless, no-account access to a variety of utility tools (crypto data, media generation, proof verification, job search) and can pay $0.001 USDC per call via the x402 protocol on Base. Ideal for agents that need to avoid API key management overhead or subscription commitments across multiple tool categories.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T13:12:02.470Z","isFirstParty":false,"canonicalSlug":"x402-gateway-pay-per-call-mcp-on-base-via-coinbase-cdp-x402-f98eb185"}