Development MCP Servers

Heard (heard.dev), the voice layer for coding agents: cloud agents (Claude, ChatGPT, Devin, Copilot coding agent) send progress updates that the Heard macOS app reads aloud. Submitted by the Heard team.

Manage your whole WordPress network from Claude, Cursor, or any AI tool, with approval before risky changes.

MCP server bridging Claude Desktop and Wave Terminal

Code-aware Playwright browser testing for AI coding agents, with 14 MCP tools, regression memory, and HTML reports.

16 free privacy-first tools for AI agents — no API key, no signup, 60 req/min free. Description: Skuuy MCP Server gives AI agents 16 free privacy-first tools: egress IP + geo/ASN intel, disposable temp mail with OTP extraction, TOTP generation, DNS resolution + propagation matrix, port checks, security header audits, URL-to-clean-markdown for LLMs, webhook bins, hash/encode utilities, public API search, ephemeral file drop + paste, and a read-only EVM JSON-RPC relay (12 chains). Available as hosted remote endpoint and via npx. MIT licensed, actively maintained.

Create and manage Grigora websites, CMS posts, directories, ecommerce products, assets, SEO, and publishing from AI assistants through an OAuth-authenticated remote MCP server.

WordPress MCP server for 18 page builders. Edits land on a copy first, with snapshots and undo.

Create, manage, and distribute mobile wallet passes

Audit any web page for SEO, performance and accessibility from your AI agent, with fix patches.

Shrinks logs, JSON, docs and web pages before your AI reads them: offline, deterministic, no API key. A 400-line log goes from 13,641 to 145 tokens.

Heartbeat monitoring for cron jobs, backups and automations — alerts when they stop and when they recover.

Claude Code plugin + stdlib-Python MCP server that watches Claude Code sessions across all your repos and keeps a local dashboard current: commits, Recent work reviews from diffs, architecture and schema diagrams, review flags. No API key; runs on your Claude subscription. MIT.

Catalog of MCP servers, agent skills and A2A agents with security checks and change alerts.

Local stdio MCP for browser verification evidence and same-session resume. Zero-config analysis; configured browser actions are limited to official provider test keys and owned flows.

Evaluate x402 V2 payment requirements against explicit policies. Six public offline MCP tools; no wallet, signing or payments.

Give AI coding agents access to production-ready React UI components, dashboard blocks, and templates from Layro to build consistent interfaces faster with less manual fixing.

Check a public page's static Open Graph and Twitter metadata locally via npm and stdio. No MyOG account or key.

Blockchain RPC for AI agents across 125+ chains: endpoint URLs, method support, endpoint probing, and RPC calls with your API key.

Parse a User-Agent string into browser, engine, OS, device type and CPU, and flag known bots, search crawlers, AI crawlers and AI agents that identify themselves in the User-Agent. One read-only tool, parse_user_agent; no API key needed for light use. Matches are by User-Agent only and can be spoofed.

DNS records, SSL certificate, WHOIS/RDAP and website tech scan for any domain. Free tier, RapidAPI key.

IP geolocation: country, continent, ASN and ISP lookup. Free tier, RapidAPI key.

Token counting, RAG chunking, truncation, HTML to Markdown and JSON repair. Free tier, RapidAPI key.

Is this MCP server healthy and safe to call now? Live checks of ~2,000 servers + alternatives.

Is this AI/dev API down? Is this model deprecated, what replaces it? Live status for ~40 APIs.

Hosted MCP endpoint for a tamper-evident evidence log. Without a key, read signed heads, inclusion and consistency proofs and checkpoints; with one, record the salted SHA-256 of a decision record. The record itself never leaves you.

Local MCP server that records an AI agent's decisions as evidence. The record stays in your own journal; only its salted SHA-256 goes to a tamper-evident log, and without a key nothing leaves the machine.

Model Context Protocol (MCP) server that lets AI agents understand, inspect, create, validate, build, and document Jekyll component frameworks.

Find and compare 45+ odds APIs and sports data APIs, with a written review of each one

Free local read-only MCP client for checking configured YOOtheme sites, listing pages and summarizing supplied layout JSON. Editing and publishing are Pro-only.

Free read-only MCP client for GMC Builder: list configured sites, check a site connection, list up to ten element types, and summarize supplied layout JSON. Authoring tools are in the separate Pro product.