# Clement docs

Clement is the API-first cold-email platform. REST + JSON over HTTPS, bearer-auth'd, with type-prefixed IDs (`inb_`, `cmp_`, `snd_`), idempotent POSTs, signed webhooks, and OpenAPI 3.1 spec.

- Base URL: https://api.clement.so
- OpenAPI spec: https://api.clement.so/openapi.json
- MCP server (lands with phase A8): https://mcp.clement.so

## Get started
- [Quickstart](https://clement.so/docs/quickstart/)
- [Authentication](https://clement.so/docs/guides/authentication/)
- [Send your first email](https://clement.so/docs/guides/sends/)
- [Import contacts](https://clement.so/docs/guides/contacts/)
- [Run a campaign](https://clement.so/docs/guides/campaigns/)
- [Webhooks](https://clement.so/docs/guides/webhooks/)
- [Test mode](https://clement.so/docs/guides/test-mode/)
- [Agent integration](https://clement.so/docs/guides/agents/)

## Reference
- [Meta](https://clement.so/docs/reference/meta/) — 1 endpoint
- [Workspace](https://clement.so/docs/reference/workspace/) — 1 endpoint
- [API keys](https://clement.so/docs/reference/api-keys/) — 4 endpoints
- [Inboxes](https://clement.so/docs/reference/inboxes/) — 7 endpoints
- [Sends](https://clement.so/docs/reference/sends/) — 4 endpoints
- [Messages](https://clement.so/docs/reference/messages/) — 3 endpoints
- [Threads](https://clement.so/docs/reference/threads/) — 3 endpoints
- [Contacts](https://clement.so/docs/reference/contacts/) — 10 endpoints
- [Audiences](https://clement.so/docs/reference/audiences/) — 7 endpoints
- [Sequences](https://clement.so/docs/reference/sequences/) — 9 endpoints
- [Campaigns](https://clement.so/docs/reference/campaigns/) — 21 endpoints
- [Suppressions](https://clement.so/docs/reference/suppressions/) — 5 endpoints
- [Events](https://clement.so/docs/reference/events/) — 2 endpoints
- [Webhooks](https://clement.so/docs/reference/webhooks/) — 10 endpoints

## Errors
24 stable error codes; full list at https://clement.so/docs/errors/. Every error response carries `{type, code, message, param?, request_id, doc_url}`.

## Events
30 webhook event types in v1; catalog at https://clement.so/docs/events/. Subscribe via POST /v1/webhooks.

## Verbose
- https://clement.so/docs/llms-full.txt