{"slug":"intel-rallylive-ca-dev-file-type-92d809","title":"Detects the real type of a file at a URL from its magic bytes (40+ signatures","host":"intel.rallylive.ca","method":"POST","resource":"https://intel.rallylive.ca/dev/file-type","category":"image","description":"Detects the real type of a file at a URL from its magic bytes (40+ signatures: images, audio, video, archives, PDF, Office, executables, fonts, WASM, SQLite, text/JSON/HTML) and compares with the declared Content-Type and the URL extension, flagging mismatches. Also returns size, content-disposition","price_listed":0.01,"price_asked":0.001,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":27,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:8453","eip155:84532"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"url":"https://www.google.com/favicon.ico"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{}},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.001,"price_match":false,"latency_ms":27,"error":null}],"description_full":"Detects the real type of a file at a URL from its magic bytes (40+ signatures: images, audio, video, archives, PDF, Office, executables, fonts, WASM, SQLite, text/JSON/HTML) and compares with the declared Content-Type and the URL extension, flagging mismatches. Also returns size, content-disposition and whether the server supports ranges. Reads only the first 64 KB. $0.01 per file.","last_updated":"2026-09-13T10:27:05.618Z","schemes":["exact"]}