TL;DR
JSON Contracts is a Model Context Protocol (MCP) server. JSON contract registry and validator for structured LLM and agent outputs. Install with: npx -y json-contracts. Source: https://github.com/json-contracts/json-contracts. Compatible with MCP clients such as Claude Desktop, Cursor, Cline and Windsurf.
JSON Contracts
JSON contract registry and validator for structured LLM and agent outputs.
Install Command
npx -y json-contractsFrequently Asked Questions
JSON Contracts is a Model Context Protocol server that JSON contract registry and validator for structured LLM and agent outputs.
You can install it by running the install command: `npx -y json-contracts`. It then becomes available to any MCP-compatible client such as Claude, Cursor, Cline, Windsurf.
The JSON Contracts MCP Server is compatible with any client that speaks the Model Context Protocol — including Claude, Cursor, Cline, Windsurf.
Check the project license on its repository before use.
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- Agent Rank
- 0.0
- License
- Last Updated
- Aug 12, 2026
- Languages
- TypeScript
Client Compatibility
Speaks the Model Context Protocol — works with any compatible client.