{"uid":"cap_GerkZTMedg6vT-v5oWrEi","slug":"alpha-vantage-crypto-exchange-rate-via-locus-x402-5d735c04","name":"Alpha Vantage Crypto Exchange Rate (via Locus x402)","description":"Financial market data — stock prices, forex, crypto, commodities, economic indicators, technical analysis, and news sentiment.","url":"https://alphavantage.x402.paywithlocus.com/alphavantage/crypto-exchange-rate","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"to_currency":{"type":"string"},"from_currency":{"type":"string"}}},"responseSchema":{"type":"json","example":{"data":{},"payment":{"scheme":"exact","settledUsdc":"0.001000","authorizedMaxUsdc":"0.001000"},"request":{"id":"00000000-0000-4000-8000-000000000000","statusUrl":"/requests/00000000-0000-4000-8000-000000000000"},"success":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_QlIsso0KdxdfcA0lyV6hw","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the real-time exchange rate between a cryptocurrency and a target fiat or crypto currency using Alpha Vantage data, paid per-call via x402.","exampleAgentPrompt":"What's the current exchange rate for ETH to USD? Use Alpha Vantage to look it up right now.","exampleUseCases":[{"title":"Live Bitcoin portfolio valuation","prompt":"What's the current BTC to USD exchange rate so I can calculate the dollar value of my Bitcoin holdings?"},{"title":"Crypto arbitrage rate check","prompt":"Pull the live exchange rate for ETH to EUR from Alpha Vantage — I need to compare it against another exchange to spot arbitrage opportunities."},{"title":"Altcoin price alert setup","prompt":"What is the current SOL to USD exchange rate? I want to check whether it's crossed my target price of $150."}],"resultDescription":"Returns a JSON object containing the real-time exchange rate data for the requested crypto pair, including the from/to currency names and codes, the exchange rate, bid price, ask price, and the timestamp of the last refresh, along with payment settlement metadata.","failureModes":["Unsupported or invalid currency code returns an error or empty data object","Alpha Vantage API rate limit exceeded upstream causes failure","Network timeout from the Locus proxy layer","Payment failure if USDC balance is insufficient for the $0.008 per-call fee","Malformed request missing from_currency or to_currency fields"],"whenToPreferThis":"Choose this endpoint when you need a real-time, point-in-time crypto-to-fiat or crypto-to-crypto exchange rate and are willing to pay per query via USDC micropayment. It is backed by Alpha Vantage's reliable market data and accessed through Locus x402 pay-per-use infrastructure, making it ideal for agents that don't want a monthly subscription and need on-demand pricing. Prefer it over scraping or free-tier APIs when freshness and reliability matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:49:22.615Z","isFirstParty":false}