
Fern: Docs, SDKs, and CLIs for your API
Start with OpenAPI. Generate SDKs in multiple languages, interactive API documentation, and an agent-first CLI.
API developers and platform engineers who use AI coding agents to generate and maintain SDKs, Terraform providers, and OpenAPI specifications
Contains 13 Agent Skills for the Speakeasy CLI covering SDK generation, OpenAPI spec authoring and overlay management, Terraform provider generation, MCP server creation, and SDK customization including hooks, testing, and naming.
Installable via "npx skills add speakeasy-api/skills" and compatible with Claude Code, Cursor, GitHub Copilot, Gemini CLI, and other agentskills.io platforms. Apache-2.0 licensed; the repo includes skill templates and contributor guidance for extending the collection.