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Changelog State API – LangChain Recent Releases
x402
Changelog State API – LangChain Recent Releases is a paid API for AI agents from changelog-state-api.replit.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns structured recent release entries for the LangChain vendor, up to a configurable limit.
Price / call$0.01
Success—
StatusUnknown
How this service works
Structured recent releases for one tracked vendor.
Output
A JSON object containing a list of structured recent release entries for LangChain, each including release version, date, and changelog details, up to the requested limit (default 10, max 50).
Example use cases
LangChain version upgrade check
“Check the Changelog State API for the most recent LangChain releases — I want to know if there's been a new version since last week and what changed.”
AI dependency update monitoring
“Fetch the last 5 LangChain releases from the changelog tracker so I can decide whether to update my project's dependency.”
Automated release digest generation
“Get up to 20 recent LangChain release entries from the Changelog State API so I can compile a weekly update digest for my team.”
Technical details
Endpoint
GEThttps://changelog-state-api.replit.app/api/monitors/langchainWhen to prefer
Use this endpoint when you need structured, machine-readable recent release data specifically for LangChain, rather than scraping changelogs manually. Prefer it over generic web search when you want consistently formatted release records you can compare, version-check, or feed into downstream workflows.
Side effects
- Vendor slug not found – returns 404 if the slug does not match a tracked vendor
- Limit out of range – returns validation error if limit is below 1 or above 50
- Service unavailable – Replit-hosted service may have cold start delays or downtime
- Payment failure – x402 micropayment of $0.01 USDC required per call; failure returns 402
- No releases available – may return empty list if no releases have been detected yet
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object | Full structured recent releases (paid) |
Tags
x402
Reviews
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