{"uid":"cap_SAGLampW_FsVndovT1mM9","slug":"forgemesh-file-checksum-verifier-7ebe6be4","name":"ForgeMesh File Checksum Verifier","description":"File checksum API: fetch any public file URL (up to 50MB) and return its SHA-256/SHA-512/SHA-1/MD5 hex digest — verify a download matches its published checksum BEFORE trusting it. Supply-chain safety for agents installing packages, models, and binaries. File is hashed in memory and discarded.","url":"https://x402.forgemesh.io/verify-file-checksum","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string"},"algorithm":{"type":"string","description":"sha256 default"}}},"responseSchema":{"type":"json","example":{"hex":"eefffad4e662b2821b1aab5957d4dcc60ac6e19fd5523ec59dad6d29deac64e1","bytes":53647,"algorithm":"sha256"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_OAErwWuZPITaRUVhuhuUd","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches any public file URL (up to 50MB) and returns its SHA-256, SHA-512, SHA-1, or MD5 hex digest so agents can verify a download matches its published checksum before trusting it.","exampleAgentPrompt":"Before we install that PyTorch wheel, can you verify that https://files.pythonhosted.org/packages/torch-2.3.0-cp310-linux.whl has a SHA-256 hash matching a9f3c2e1 — fetch the file and return the full hex digest so I can compare?","exampleUseCases":null,"resultDescription":"A hex-encoded cryptographic digest (SHA-256 by default, or SHA-1/SHA-512/MD5 if specified) of the fetched file, confirming or allowing comparison against a known published checksum. The file is hashed in-memory and discarded after computation.","failureModes":["File URL is not publicly accessible or returns a non-200 status — API returns an error","File exceeds the 50MB size limit — API returns a size limit error","Unsupported algorithm specified — API returns a validation error","Network timeout fetching the remote file — API returns a timeout error","Invalid or malformed URL provided — API returns a bad request error"],"whenToPreferThis":"Use this endpoint when an AI agent needs to verify a remote file's integrity before installing, executing, or trusting it — especially for packages, model weights, or binaries downloaded as part of an automated workflow. Prefer this over computing hashes locally when the agent cannot download the file directly or needs a neutral third-party hash computation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T19:01:57.195Z","isFirstParty":false}