{"uid":"cap_rqSlZ9rccsfaPQsO8wbz_","slug":"coin-railz-portfolio-tracker-real-time-multi-chain-portfolio-valuation-99995c59","name":"Coin Railz Portfolio Tracker - Real-Time Multi-Chain Portfolio Valuation","description":"Real-time multi-chain portfolio valuation - infrastructure for portfolio management agents (B2B2C infrastructure)","url":"https://coinrailz.com/x402/portfolio-tracker","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"Query parameter for the service"}}},"responseSchema":{"type":"application/json","format":"json","example":{"result":"Service executed successfully","service":"portfolio-tracker","success":true,"timestamp":"2026-02-07T01:40:19.448Z"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.5","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.5/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YhOM-oNPVAGvlc4WsBg0U","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.5","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Performs real-time valuation of a cryptocurrency portfolio across multiple blockchains in a single API call","exampleAgentPrompt":"What's the total real-time value of my crypto portfolio across Ethereum, Base, and Solana right now? My wallet addresses are 0xABC...123 on Ethereum/Base and FGH...789 on Solana.","exampleUseCases":null,"resultDescription":"Returns a JSON object with success status, a portfolio valuation result, the service name ('portfolio-tracker'), and a timestamp. Likely includes aggregated asset values across specified chains and wallet addresses.","failureModes":["Invalid or unresolvable wallet address returns error","Unsupported blockchain network returns error","Payment failure via x402 prevents execution","Chain RPC downtime may cause incomplete valuation","Malformed POST body returns 400-level error","Timeout if multiple chains are slow to respond"],"whenToPreferThis":"Use this endpoint when an AI agent or portfolio management system needs a single-call, real-time aggregate valuation of crypto assets spread across multiple chains. Prefer it over chain-specific APIs when multi-chain consolidation is needed without making separate calls per network. Ideal for B2B2C portfolio management dashboards and trading bots needing current net worth snapshots.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:09:33.284Z","isFirstParty":false}