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JSON contract registry and validator for structured LLM and agent outputs.
JSON Contracts is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 64/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding JSON Contracts to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
npx -y json-contracts@0.1.2Review the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-05-05T16:22:31.928726Z",
"publishedAt": "2026-05-05T16:22:31.928726Z",
"statusChangedAt": "2026-05-05T16:22:31.928726Z"
}
},
"server": {
"name": "io.github.json-contracts/json-contracts",
"title": "JSON Contracts",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"version": "0.1.2",
"packages": [
{
"version": "0.1.2",
"transport": {
"type": "stdio"
},
"identifier": "json-contracts",
"registryType": "npm",
"registryBaseUrl": "https://registry.npmjs.org",
"environmentVariables": [
{
"name": "JSON_CONTRACTS_DIR",
"format": "filepath",
"description": "Folder containing JSON contract files. Defaults to ./json-contracts."
}
]
}
],
"repository": {
"id": "1230012930",
"url": "https://github.com/json-contracts/json-contracts",
"source": "github"
},
"websiteUrl": "https://github.com/json-contracts/json-contracts#readme",
"description": "JSON contract registry and validator for structured LLM and agent outputs."
}
}