Notion

Notion API supports filtering and sorting but lacks comprehensive field selection capabilities, requiring agents to fetch full block objects and parse unnecessary data; pagination is available but response sizes can be substantial for complex pages.

Notion offers a well-documented REST API with official SDKs in Node.js and Python, an official MCP server (notion-mcp-server v2.2.1), multiple community packages, and a CLI—providing multiple programmatic access paths for agents.

Notion supports API key authentication with scoped OAuth permissions and integration tokens, enabling autonomous agent authentication without human-in-the-loop interaction.

Homepage response is substantial (192KB) with no indication of response time metrics; rate limits exist but are not exceptionally generous, and no ETags or conditional request support is evident from the signals.

Notion provides an llms.txt file (6914 bytes) for AI agent discoverability and documents agent mentions on the homepage, but lacks an OpenAPI spec; REST API documentation is solid but not exceptional.

Notion API supports versioning and maintains consistent response schemas, but signals don't confirm idempotency key support or a public status page, which are important for reliable agent operations.

Notion offers scoped OAuth tokens and read/write permission differentiation, but lacks explicit sandbox mode, dry-run capabilities, or operation undo mechanisms that would give agents safe testing and recovery options.

No evidence of webhook support, streaming, or server-sent events in the signals; agents must rely on polling-based approaches to detect changes, which is inefficient and introduces latency.