{"uid":"cap_wuWV5J_h4M8d44ylNDbhC","slug":"squeezeos-truth-engine-multi-provider-price-consensus-verifier-53fc180b","name":"SqueezeOS Truth Engine — Multi-Provider Price Consensus Verifier","description":"Fact verification API for market data — cross-check a ticker against live provider evidence and return an evidence-backed result instead of guessing.","url":"https://squeezeos-api.onrender.com/api/truth/verify/AAPL","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input","output"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"type":"string","const":"GET"},"queryParams":{"type":"object","required":[],"properties":{"symbol":{"type":"string","pattern":"^[A-Z0-9.]{1,10}$","description":"Ticker symbol mirrored from the URL path for Bazaar discovery Search intents: fact verification api, fact verification, truth check api, market data verification, evidence backed, hallucination defense."}},"additionalProperties":true}},"additionalProperties":false},"output":{"type":"object","required":["type","example"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object"}},"additionalProperties":false}},"additionalProperties":false},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_1uut590QKpRrLBUWrmx6k","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Queries Tradier, Alpaca, and Polygon independently for a stock price, then returns a consensus value with variance, confidence score, and HMAC-SHA256 proof hash.","exampleAgentPrompt":"Can you get me a multi-provider verified price for AAPL — I want to see the consensus value, how much the sources disagree, and the proof hash confirming the data?","exampleUseCases":[{"title":"Algorithmic trade entry price check","prompt":"Before I submit this order, verify the current price of NVDA across multiple sources and tell me the consensus price and confidence score — I only want to trade if the providers agree within a tight range."},{"title":"Auditable price attestation for compliance","prompt":"I need a cryptographically attested price quote for MSFT right now, including the HMAC proof hash, so I can attach it to a compliance record showing the price at time of transaction."},{"title":"Detecting stale or divergent data feeds","prompt":"Check the current price of SPY across Tradier, Alpaca, and Polygon and tell me how much variance there is between them — I want to know if any of the feeds looks off or stale."}],"resultDescription":"A JSON object containing the consensus price derived from Tradier, Alpaca, and Polygon, individual provider quotes, a measured variance value, a confidence score (0–1 or percentage), and an HMAC-SHA256 proof hash attesting to the result integrity.","failureModes":["One or more upstream providers (Tradier, Alpaca, Polygon) unavailable — reduced confidence or partial result","Invalid ticker symbol returns 400 or empty result","High variance between providers may lower confidence score significantly","Service cold-start latency on Render free tier may add delay","Payment not processed correctly via x402 — 402 response with payment requirements"],"whenToPreferThis":"Choose this endpoint when you need more than a single stock quote — specifically when you require cross-provider price agreement, a measurable confidence score, or a cryptographic proof hash for auditability. It is superior to single-source price APIs when data integrity, audit trails, or algorithmic trading safeguards matter. Prefer alternatives for pure low-cost, high-frequency single-source price lookups.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:34:05.140Z","isFirstParty":false}