# Since.dev

> Since.dev helps software recover from upstream change. It watches APIs, packages, SDKs and models, finds affected code, and prepares supported repairs as draft PRs. Agents can also watch changes and check current facts through MCP, HTTP and signed webhooks.

Since.dev opens draft PRs only for supported repairs. CI runs in your repository and people decide whether to merge. Verification returns valid, changed or unknown; unknown does not mean unchanged.

## Documentation

- [Quickstart](https://since.dev/docs#quickstart): Create a key, watch the dependencies you use, then read what changed.
- [Authentication](https://since.dev/docs#auth)
- [Concepts](https://since.dev/docs#concepts): Watches, sets, changes and classifications.
- [HTTP API reference](https://since.dev/docs#api): Base URL https://api.since.dev.
- [Webhook delivery](https://since.dev/docs#webhooks): Signed, at-least-once; dedupe on idempotencyKey.
- [GitHub repositories and repairs](https://since.dev/docs#repairs): Monitor only and Automatic draft PRs.
- [MCP server](https://since.dev/docs#mcp): Streamable HTTP at https://api.since.dev/mcp.
- [Errors and limits](https://since.dev/docs#errors)

## MCP tools

- get_usage
- what_changed_since
- acknowledge_changes
- verify_facts
- subscribe
- list_sets
- attach_to_set
- check_coverage
- subject_history
- list_maintained_repositories
- list_repairs
- inspect_repair

## HTTP routes

- POST /v1/subscriptions
- GET /v1/subscriptions
- GET /v1/subscriptions/:id
- PATCH /v1/subscriptions/:id
- DELETE /v1/subscriptions/:id
- GET /v1/sets
- POST /v1/sets/:id/attach
- POST /v1/verify
- GET /v1/changes
- GET /v1/cursor
- POST /v1/cursor
- GET /v1/coverage
- POST /v1/subjects/resolve
- GET /v1/subjects/:key/history
- POST /v1/webhooks
- GET /v1/webhooks
- DELETE /v1/webhooks/:id
- GET /v1/repositories
- GET /v1/repairs
- GET /v1/repairs/:id
- GET /v1/repairs/:id/review
- GET /v1/usage

## Public data

- [Public changes](https://since.dev/changes)
- [Sources and coverage](https://since.dev/sources)
- [Atom feed](https://since.dev/changes/feed.xml)

## Optional

- [Pricing](https://since.dev/#pricing)
- [Privacy](https://since.dev/privacy)
- [Terms](https://since.dev/terms)