{"x402Version":2,"name":"Callrack","description":"Callrack is a pay-per-use information infrastructure platform - every capability below is paid per request in USDC on Algorand via the x402 protocol. No accounts, no API keys, no subscriptions.","resources":[{"url":"https://api.callrack.xyz/v1/academic/search","method":"POST","description":"Search scholarly literature via OpenAlex (falling back to Crossref) and return normalized works with titles, authors, publication years, DOIs, journals, citation counts, and open-access status. - 0.01 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"10000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/academic/work","method":"POST","description":"Retrieve a single scholarly work by DOI via OpenAlex (falling back to Crossref) and return its normalized title, authors, publication year, journal, citation count, and open-access status. - 0.005 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"5000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/news/search","method":"POST","description":"Search recent news coverage via GDELT and return normalized articles with titles, URLs, source domains, publish dates, languages, and countries. - 0.01 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"10000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/news/trends","method":"POST","description":"Return normalized daily news-coverage volume for a topic, entity, or event via GDELT as a time series of dated volume points. - 0.02 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"20000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/crypto/price","method":"POST","description":"Get current price and 24-hour change for one or more cryptocurrency assets in a specified quote currency via CoinGecko. - 0.002 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"2000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/crypto/market","method":"POST","description":"Get market capitalization, rank, 24h volume, and circulating/total/max supply for one or more cryptocurrency assets via CoinGecko. - 0.005 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"5000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/fx/rates","method":"POST","description":"Get current or historical foreign exchange reference rates for a base currency against one or more target currencies via Frankfurter (ECB data). - 0.002 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"2000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/weather","method":"POST","description":"Get current conditions and a multi-day daily forecast (temperature, humidity, wind, precipitation) for a coordinate via Open-Meteo. - 0.003 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"3000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/geocode","method":"POST","description":"Forward geocode a place name to coordinates, or reverse geocode coordinates to a place, via Photon, returning normalized address components. - 0.002 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"2000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/holidays","method":"POST","description":"Retrieve public holiday dates and names for a specified country and year via Nager.Date, including whether each holiday is observed nationwide. - 0.002 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"2000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/knowledge/search","method":"POST","description":"Search Wikidata for entities matching a free-text query and return normalized entity names, descriptions, and reference URLs. - 0.005 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"5000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/government/census","method":"POST","description":"Query a constrained subset of US Census Bureau statistical datasets and return the requested variables as normalized rows for the specified geography. - 0.01 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"10000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/research","method":"POST","description":"Aggregate information from selected Callrack research capabilities (academic, news, knowledge, and optionally government) and return structured research evidence with per-source status; deterministic composition, not an AI-generated answer. - 0.05 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"50000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/verify","method":"POST","description":"Verify a claim against existing Callrack capabilities (academic, news, knowledge) and return a deterministic verdict - supported, contradicted, mixed, or insufficient - with the underlying evidence. Uses explainable lexical term-overlap and negation-cue heuristics, never an LLM or semantic entailment. - 0.05 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"50000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/evidence","method":"POST","description":"Return a machine-readable evidence pack for a query - real results from academic, news, and knowledge search with full source provenance and retrieval timestamps, never an AI-generated narrative answer. - 0.05 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"50000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"},{"url":"https://api.callrack.xyz/v1/compare","method":"POST","description":"Compare information gathered from academic, news, and knowledge search for a query - distinct subjects, a flattened table of real attribute values, deduplicated sources, and any detected disagreements. Never fabricates a value a provider did not return. - 0.10 USDC per call.","network":"algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDexi9/cOUJOiI=","asset":"10458941","amount":"100000","payTo":"ITGXWHD7YOC35LJ62SBSCQK5H5GP47WGMXEGLC3PB6FVXDRH3CTDFJBRQY"}]}