Meridian API v1 documentation. v1 reaches end-of-life on 2027-03-31 - migrate to v2 when possible.
Meridian v1 is the original REST API: projects, API keys, and webhook delivery over HTTPS + JSON.
Meridiancurl https://api.meridian.dev/v1/projects \
-H "Authorization: Bearer $MERIDIAN_API_KEY"| Area | v1 | v2 |
|---|---|---|
| Pagination | Offset (page, per_page) | Cursor (cursor, limit) |
| List response | total count field | has_more, next_cursor |
| Webhook signature | X-Meridian-Signature (v1 HMAC) | Meridian-Signature (timestamped v1 scheme) |
| Error shape | { "error": "message" } string | Structured error object with code |
| Environments | Not isolated | Fully isolated test/live |
page/per_page loops with cursor/limit (SDKs auto-paginate in v2).Meridian-Signature scheme - see v2 Webhooks.error.code, not the message string.