The Command+K blog
Field notes on AI-native SaaS.
How to ship MCP servers, embed in-product AI assistants, and monetize AI usage — written by the team building the platform.
- MCP education
How do you turn a REST or GraphQL API into an MCP server? What 220 generated tools taught me
The direct answer, then the parts the mapping doesn't tell you: OpenAPI and GraphQL to MCP tool code, the non-null relation that zeroed out a whole query, GraphQL's HTTP 200 failures, and a description pipeline that failed silently for weeks.
Sep 21, 2026 · 8 min - MCP education
OpenAPI to MCP: the practical conversion guide
How to convert an OpenAPI spec into MCP tools that agents actually use well: operation→tool mapping, curation, read/write flags, agent-grade descriptions, and the gotchas that survive spec review.
Jul 11, 2026 · 6 min