{"uid":"cap_WDO8fQ6roPURvrC3L28Hl","slug":"td-agent-utility-checkpoint-save-website-deployment-verification-28be0176","name":"TD Agent Utility – Checkpoint Save (Website & Deployment Verification)","description":"Independent website and deployment verification for AI agents: HTTP, DNS, TLS and Chromium screenshot evidence. Three deterministic tools, x402 V2 Base USDC.","url":"https://tdagentutility.co.uk/v1/checkpoint-save?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":null,"responseSchema":{"type":"json","example":{"key":"","tool":"checkpoint_save","version":0,"warnings":[],"checked_at":"2026-10-15T00:00:00Z","created_at":0,"expires_at":0,"size_bytes":0,"updated_at":0,"result_status":"PASS"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_yJ3aVUqp7gveMxhDuQDoT","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Saves a verification checkpoint for a website or deployment, storing the result of HTTP, DNS, TLS, and Chromium screenshot checks for later retrieval.","exampleAgentPrompt":"Save a verification checkpoint for https://myapp.example.com — I just ran a deployment and want to record that the site passed HTTP, DNS, and TLS checks so I can reference this evidence later.","exampleUseCases":[{"title":"Post-deploy evidence archival","prompt":"We just shipped a new version of our app at https://shop.acme.io — save a verification checkpoint right now so I have a timestamped record that the site was live and passing all checks at launch time."},{"title":"Compliance audit snapshot","prompt":"I need to store a checkpoint proving that https://portal.fintech-corp.com was reachable and TLS-valid at the time of our quarterly audit — save it now and give me the key so I can retrieve it later."},{"title":"Continuous monitoring baseline","prompt":"Set a checkpoint baseline for https://staging.myservice.dev after our latest deployment so I can compare it against future verification runs and catch any regressions."}],"resultDescription":"Returns a JSON object containing a unique checkpoint key, the tool identifier ('checkpoint_save'), a version number, a result status (e.g. 'PASS'), timestamps for creation, update, and expiry, the size of the stored data in bytes, and any warnings generated during the save operation.","failureModes":["Missing or invalid target URL returns a validation error","Expired or invalid payment results in a 402 Payment Required response","Storage backend unavailable causes a 503 error","Malformed request body returns a 400 Bad Request","Checkpoint key collision may cause an update rather than a new create"],"whenToPreferThis":"Use this endpoint when you need to durably persist the result of a website or deployment verification check — particularly when you need a tamper-evident, timestamped record (with expiry) that you can retrieve or share later. Prefer this over in-memory or ephemeral logging when auditability, compliance evidence, or cross-session retrieval of verification state is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:41:14.052Z","isFirstParty":false,"canonicalSlug":"td-agent-utility-checkpoint-save-website-deployment-verification-28be0176"}