{"uid":"cap_ITC4rabn6WxiYli9rkkwb","slug":"delx-mime-lookup-fc29b821","name":"Delx MIME Lookup","description":"Look up a common MIME type from extension/filename for $0.001 USDC. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.","url":"https://api.delx.ai/api/v1/x402/mime-lookup?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input","output"],"properties":{"input":{"type":"object","required":["type","bodyType","body"],"properties":{"body":{"type":"object","additionalProperties":true},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type","example"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","additionalProperties":true}}}}},"responseSchema":{"type":"json","example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_C6PcXh-WqSEChFtohVkt3","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the canonical MIME type for a given file extension or filename for $0.001 USDC per call.","exampleAgentPrompt":"What's the correct MIME type for a .webp file? I need the official content type string so I can set the right HTTP header.","exampleUseCases":[{"title":"Set HTTP Content-Type for uploads","prompt":"I'm building a file upload handler and need to know the correct MIME type for .svg files so I can set the Content-Type header properly."},{"title":"Validate file type before processing","prompt":"What's the standard MIME type for a .docx file? I want to make sure I'm tagging it correctly before storing it."},{"title":"Serve static assets with correct headers","prompt":"I need the MIME type for .wasm files so my server can serve them with the right Content-Type instead of guessing."}],"resultDescription":"Returns the canonical MIME type string (e.g. 'image/webp', 'application/json') corresponding to the provided file extension or filename, allowing agents to correctly label or process files by content type.","failureModes":["Unknown or uncommon extension returns null or generic 'application/octet-stream'","Malformed input (e.g. no extension) may return an error or fallback type","Payment failure or insufficient USDC balance blocks the call","Rate limiting if too many calls are made in quick succession"],"whenToPreferThis":"Use this endpoint when an agent needs a quick, authoritative MIME type lookup without bundling a large MIME database locally, especially within an x402-enabled micropayment workflow where $0.001 per call is acceptable. Prefer it over hardcoded lookup tables when accuracy and coverage for less common extensions matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T07:12:24.085Z","isFirstParty":false,"canonicalSlug":"delx-mime-lookup-fc29b821"}