{"uid":"cap_gUf5Qo8W9G6rfPqtLww8a","slug":"transfer-encoding-check-4eda6f28","name":"Transfer Encoding Check","description":"Transfer Encoding Check: Transfer Encoding Check checks transfer-coding order and whether chunked appears only last from bounded caller-supplied values without an external provider. Call Transfer Encoding Check before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for Transfer Encoding Check as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party…","url":"https://api.delx.ai/api/v1/x402/transfer-encoding-check","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"header":{"type":"string","maxLength":8192,"description":"Header supplied to Transfer Encoding Check; used only for this bounded calculation and processed in memory without retention."}}},"responseSchema":{"type":"json","example":{"result":{"codings":["gzip","chunked"],"chunked_last":true},"schema":"delx/util-transfer-encoding-check/v1","status":"pass","evidence":{"retained":false,"input_sha256":"d6676b1fa151e91d9e82973a7a1385d55e325258b6e169eb78e0b287fb421903","external_calls":0},"operation":"web_reliability:transfer_encoding_check"}},"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_oiEqBL2UCyXzBoPTivOb2","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":"Validates the order and placement of transfer-coding values in an HTTP Transfer-Encoding header, ensuring 'chunked' appears only as the last encoding","exampleAgentPrompt":"Check this Transfer-Encoding header value for me and tell me if the coding order is valid and whether chunked appears only last: 'gzip, chunked'","exampleUseCases":[{"title":"Proxy gateway response validation","prompt":"Before my reverse proxy caches this upstream response, check whether its Transfer-Encoding header 'deflate, chunked' has a valid coding order and chunked in the last position."},{"title":"HTTP client retry safety check","prompt":"I'm about to retry a failed HTTP request — can you validate this Transfer-Encoding header 'chunked, gzip' to make sure it's safe to reuse and won't cause desync issues?"},{"title":"Security audit of ingested web responses","prompt":"We're ingesting third-party web responses and I need to verify the Transfer-Encoding header 'gzip, deflate, chunked' is correctly ordered before we accept it into our pipeline — run a transfer encoding check on it."}],"resultDescription":"Returns a versioned deterministic JSON object containing: the normalized header evidence (parsed transfer-coding values), the computed compliance finding (e.g. whether chunked is last, coding order issues), and an explicit pass or advisory status indicating whether the header is safe to accept.","failureModes":["Header string exceeds 8192 character limit — rejected with validation error","Malformed or unparseable header value — returns advisory status with parsing finding","Missing or empty header field — returns finding indicating absent header","Payment not provided or insufficient — x402 payment required response"],"whenToPreferThis":"Use this endpoint when an agent or gateway needs a deterministic, protocol-correct check of an HTTP Transfer-Encoding header before accepting, caching, redirecting, or retrying a response. Prefer it over custom parsing logic when you need a versioned, auditable compliance result rather than a boolean. Especially useful in security-sensitive pipelines where HTTP request smuggling or desync attacks via malformed transfer encoding are a concern.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:45:40.532Z","isFirstParty":false}