{"uid":"cap_i0Z2FmiGRJtet-svs8SWW","slug":"delx-checksum-meta-941d908b","name":"Delx Checksum Meta","description":"Return hash digest and byte size for caller-held content — 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 already conver…","url":"https://api.delx.ai/api/v1/x402/checksum-meta","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"content":{"type":"string","description":"Input field: content."},"algorithm":{"type":"string","description":"Input field: algorithm."}}},"responseSchema":{"type":"json","example":{"ok":true,"hex":"1d6334fef87552e1f9ad7e36ae551606a62973215dcb6f9bcb2e580852febc3c","bytes":10,"empty":false,"schema":"delx/util-checksum-meta/v1","algorithm":"sha256"}},"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_EYwJnblnTOwfO0Dv6QKm6","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":"Computes a hash digest and byte size for caller-supplied content, returning deterministic checksum metadata as JSON","exampleAgentPrompt":"Can you compute the SHA256 hash and byte size of this text: 'Hello, world! This is my content payload.' — I need the checksum metadata to verify it later.","exampleUseCases":[{"title":"Preflight content integrity check","prompt":"Before I store this document chunk, hash it with SHA256 so I can detect tampering later — the content is: 'User agreement version 3.1 effective January 2025.'"},{"title":"Pipeline deduplication fingerprint","prompt":"I need a deterministic fingerprint for this string using MD5 so I can deduplicate records in my pipeline: 'order_id=7821 customer=jane amount=49.99'"},{"title":"Byte size audit for a text payload","prompt":"What's the byte size and hash of this JSON string? Use SHA256: '{\"event\":\"click\",\"userId\":\"abc123\",\"timestamp\":1700000000}'"}],"resultDescription":"A deterministic JSON object containing the hash digest of the input content computed with the specified algorithm, the byte size of the content, and the algorithm name used — suitable for integrity verification, deduplication, or preflight checks.","failureModes":["Missing or empty content field returns an error","Unsupported algorithm value causes a validation error","Malformed JSON request body returns 400","Payment not included or insufficient USDC results in 402 response"],"whenToPreferThis":"Choose this endpoint when you need a lightweight, stateless, deterministic hash and byte-size computation for caller-held content without any external calls or data retention — ideal for agent preflight checks, pipeline deduplication, or integrity verification where privacy and reproducibility matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:51:54.702Z","isFirstParty":false}