{"uid":"cap_FDIRx1bmQwFWX5eaXiJez","slug":"http-3-support-change-watch-d42e46c8","name":"HTTP/3 Support Change Watch","description":"Change watch for http3 support: runs the check and compares it with the result from your previous call for the same domain (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when http/3 and modern-transport support changes. $0.01 per check.","url":"https://intel.rallylive.ca/watch/monitor/http3","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_r_i4eeIeqR5Gqr09ETkpq","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Monitors a domain for HTTP/3 and modern-transport support changes, returning current status, a changed flag, and before/after field diffs compared to your last call.","exampleAgentPrompt":"Keep an eye on whether example.com has enabled HTTP/3 — run the check now and tell me if anything changed since the last time you looked, including exactly which fields flipped and what their old and new values are.","exampleUseCases":[{"title":"CDN migration HTTP/3 rollout tracking","prompt":"I just migrated mystore.com to a new CDN that claims to support HTTP/3 — check right now whether HTTP/3 is active and tell me if that status changed compared to the last scan."},{"title":"Scheduled protocol compliance monitoring","prompt":"Every day, check whether api.mybusiness.com's HTTP/3 support has changed from what it was yesterday, and flag any fields that are different with before and after values so I can log them."},{"title":"Competitor transport protocol benchmarking","prompt":"Has competitor-site.com turned on HTTP/3 since the last time we checked? Show me the current support status and highlight exactly what changed, if anything."}],"resultDescription":"Returns the current HTTP/3 and modern-transport support answer for the domain, a boolean 'changed' flag indicating whether the result differs from the previous call (stored up to 90 days), a list of exactly which fields changed with their before and after values, and the timestamp of when the status was last seen.","failureModes":["Domain is unreachable or does not resolve — check may return an error or unavailable status","First-time call for a domain has no prior baseline — 'changed' will be false or indeterminate","Domain actively blocks probes — results may be inaccurate","Stale baseline if prior result is older than 90 days — comparison resets","Payment not attached or insufficient — x402 payment required error"],"whenToPreferThis":"Choose this endpoint when you need to detect changes in HTTP/3 or modern transport support over time, not just a one-shot status check. It is ideal for scheduled agents that need to react when a domain flips its HTTP/3 configuration, because it handles state comparison server-side (90-day retention) and returns precise field-level diffs rather than requiring the agent to store and compare snapshots itself.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:21:58.505Z","isFirstParty":false}