To ensure a consistent developer experience for all API users, the Notion API is rate limited and basic size limits apply to request parameters. Rate limits Rate-limited requests will return a "rate_limited" error code (HTTP response status 429). The rate limit for incoming requests per integration ...| Notion API
The OAuth 2.0 authorization framework enables a third-party application to obtain limited access to an HTTP service, either on behalf of a resource owner by orchestrating an approval interaction between the resource owner and the HTTP service, or by allowing the third-party application to obtain access on its own behalf. This specification replaces and obsoletes the OAuth 1.0 protocol described in RFC 5849. [STANDARDS-TRACK]| IETF Datatracker