{"uid":"cap_KOzN1c-rsTPlltMIfih-5","slug":"delx-etag-match-6772dbff","name":"Delx ETag Match","description":"Compare ETag validators including weak tags and If-None-Match lists — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC via x402 on Base. Execution is first-party, local-only, stateless, and memory-only with no paid upstream, no input retention, no web search, no live RPC, and no mediagen. Results are advisory; the caller owns authorization, budgets, and production controls. Sibling of Delx routes that alr…","url":"https://api.delx.ai/api/v1/x402/etag-match","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"etag":{"type":"string","description":"Input field: etag."},"other":{"type":"string","description":"Input field: other."}}},"responseSchema":{"type":"json","example":{"ok":true,"mode":"list","match":true,"schema":"delx/util-etag-match/v1","weak_a":false}},"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_6p-igMNhbcJS10SYG_YK_","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":"Compares two ETag validators (including weak ETags and If-None-Match lists) and returns a deterministic JSON result indicating whether they match","exampleAgentPrompt":"Can you compare these two ETags and tell me if they match — the stored one is '\"abc123\"' and the incoming If-None-Match header value is '\"abc123\", \"def456\"'?","exampleUseCases":[{"title":"HTTP cache freshness check","prompt":"I have a stored ETag of '\"v2-xyz789\"' and the client sent an If-None-Match header with '\"v1-abc\", \"v2-xyz789\"' — do these match so I can return a 304?"},{"title":"Weak ETag equivalence test","prompt":"Check if the weak ETag W/\"etag-001\" matches W/\"etag-001\" using weak comparison rules — I need to know if these count as equivalent."},{"title":"Conditional request preflight","prompt":"Before I process this PUT request, can you verify whether the ETag '\"doc-v3\"' matches the If-None-Match value '\"doc-v1\", \"doc-v2\"' so I know if I should proceed or return 412?"}],"resultDescription":"Returns a deterministic JSON object indicating whether the provided ETag matches the comparison ETag or If-None-Match list, including handling for weak ETag comparison rules and multi-value match lists.","failureModes":["Malformed or missing etag input returns an error response","Invalid ETag format (missing quotes or bad syntax) may produce unexpected results","If-None-Match list with malformed entries may fail to parse correctly"],"whenToPreferThis":"Use this endpoint when you need a stateless, deterministic, zero-side-effect ETag comparison without implementing the RFC 7232 matching logic yourself — especially for agent preflight checks before conditional HTTP requests, cache validation pipelines, or micro-utility workflows where correctness of weak vs strong ETag semantics matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:52:45.269Z","isFirstParty":false}