AgentSpec
Free to use — no account required

Convert any OpenAPI spec into agent-ready tool schemas

MCP, OpenAI function calling, and LangChain—in one request. Paste your spec, pick your formats, copy the output.

MCPOpenAI FunctionsLangChain ToolsOpenAPI 2.0+

Paste YAML or JSON — any valid OpenAPI 2.0, 3.0, or 3.1 spec

Output Formats

Output will appear here

Paste your spec and hit Convert

Integrate into your pipeline

Use the AgentSpec REST API to convert specs at build time, in CI, or on demand. One endpoint, all formats, sub-100ms response.

Get API Key
shell 
# Convert a spec via the REST API
curl -X POST https://api.agentspec.tools/convert \
  -H "Authorization: Bearer sk-abc1...wxyz" \
  -H "Content-Type: application/yaml" \
  --data-binary @spec.yaml

Features

Sub-100ms

Conversion happens server-side with pre-parsed schema caches.

All formats

MCP, OpenAI function calling, LangChain structured tools — more coming.

OpenAPI 2.0–3.1

YAML or JSON. Swagger 2.0, OpenAPI 3.0, OpenAPI 3.1 all supported.