Best Json AI Skills & MCP Servers

A developer-focused MCP server providing 17 tools for code analysis, JSON repair, encoding fix, import organization, format conversion, diff, and regex testing

jwt-lab – A fast, secure, beautiful JWT CLI tool and MCP server for developers & AI agents. Encode, decode, verify, inspect, audit, and generate keys for JSON Web Tokens.

MCP server for validating, transforming, and normalizing structured data - built specifically for AI agents

Zero-auth MCP server with everyday developer utilities: base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex

MCP server with 12 essential developer utilities — UUID, Base64, hashing, JWT decode, JSON diff, regex test. Zero config.

Standalone MCP (Model Context Protocol) server - stdio/http/websocket transports, connection pooling, tool registry

Extract design tokens (colors, typography, spacing, border radius, shadows) from any public website. Generates JSON and CSS custom properties for local projects. Available as an AI agent skill (Claude, Cursor, Codex) and standalone CLI.

Production-ready library for converting OpenAPI specifications into MCP tool definitions

ElysiaJS plugin for Model Context Protocol with HTTP transport and stateful sessions

Loki Mode by Autonomi. Autonomous spec-to-product system: takes a PRD, GitHub issue, OpenAPI/JSON/YAML, or one-line brief to a deployed app via the RARV-C closure loop with 11 quality gates. Provider-agnostic (Claude Code, OpenAI Codex, Cline, Aider).

MCP Apps integration for @json-render/core. Serve json-render UIs as interactive MCP Apps in Claude, ChatGPT, Cursor, and VS Code.

Fabric MCP knowledge server — stdio transport for Claude Code / Cursor / Codex CLI, manages .fabric/ knowledge base + agents.meta.json + event ledger.

MCP server for iOS leak hunting and performance investigation. 42 tools across .memgraph, .trace, and .mxdiagnostic files. v1.18 adds analyzeMetricKitPayload (42nd tool, post-mortem production-diagnostics from MetricKit JSON payloads — crash clusters, han

Token-efficient, markdown-first Notion MCP server — agents write markdown, never touch raw Notion JSON

Multi-language tree-sitter parser — supports ~50 languages including TypeScript, Python, PHP, Go, Rust, HTML, YAML, JSON, Markdown, Twig, SCSS, etc.

Persistent key-value memory — store and recall information across sessions as JSON files.

Model Context Protocol (MCP) server for json2video API integration.

Generic config-driven MCP wrapper for atrib. Spawns any upstream MCP server and applies @atrib/mcp middleware so every tool call is signed and logged. Wrap any MCP via JSON config, no per-server code.

29 developer utilities as an MCP server — JSON repair, SQL format, hash, encode/decode, UUID, regex, CSV, subnet calc, diagram generation, git diff parsing, DB schema parsing, JSON schema validation, and more. No API keys. Runs locally.

Validate data — JSON syntax, JSON Schema compliance, TypeScript type checking, lint rules.

MCP server bridging Claude Code to the OpenClaw gateway management plane (cron, sessions, agents, channels, skills, config, …) via WebSocket JSON-RPC. Wraps all 128 published methods.

Shared utilities for Octocode MCP packages

Simplify common data manipulation tasks like encoding, hashing, and formatting across various formats. Convert between CSV, JSON, Markdown, and HTML seamlessly to streamline data workflows. Extract insights from text and configurations through robust parsing, regex testing, and s

gemini-extension.json n'est pas un mécanisme d'auto-discovery. Les Gemini Extensions sont publiées via Google AI Studio / Extensions Gallery, pas via crawl du .well-known/. Ton fichier est invisible pour Gemini. 3. ChatGPT ai-plugin.json correspond à la spec OpenAI Plug