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To use the Momentum API, your organization needs the API access feature enabled. Please contact the Momentum support team and request that API access be turned on for your workspace. Once API access is granted, you can create an API key:
  1. Navigate to the Integrations page in your Momentum dashboard.
  2. Select Create API key.
  3. Copy the generated key and store it securely. Use this key as the X-API-Key header when making requests to the Momentum API.
If you need to rotate or remove an API key, return to the Integrations page and manage your keys from there.

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Rate Limiting

All API endpoints are rate limited to 100 requests per 15-minute window. The limit applies per organization and is shared across all API keys and all endpoints. The window starts with the first request after the previous window expires. Every authenticated response, including successful ones, includes these headers. Requests rejected with 401 for an invalid API key do not count toward the limit and do not include them. When the limit is exceeded, the API returns HTTP 429 with the body { "error": "Rate limit exceeded" }. Wait until X-RateLimit-Reset (or for Retry-After seconds) before retrying.