Developer Tools MCP Servers

Twelve tools to inspect CRAP scores, find work, and check edited functions against their ceiling.

AI-powered time-travel debugger with bidirectional execution replay, audit-compliant hash-chain logging, and SIMD-accelerated stack…

Type-faithful calculator: evaluate expressions under fixed-point, IEEE-754 double, or exact rational arithmetic, with every answer…

The Underground Cultural District MCP server. 23 tools for AI agents: 13 free developer utilities (UUID, JSON formatter, Base64, hashing,…

AI detection for text content with GPTZero API. Detect AI-generated text, get confidence scores, multilingual support (French/Spanish),…

The Figma desktop app as an MCP server: full Plugin API for AI agents. Local, no token, no quota.

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

Audit a domain email deliverability via Apify: SPF, DKIM, DMARC, MX, blacklist, catch-all, age.

MCP server for AI agents to plan, verify, and deploy Cloudflare-native apps.

MCP server for npm package management — publish, version, search, audit, and more

Generate engineer-grade SaaS specifications — design systems, database schemas, and RLS policies for AI build tools like Lovable, Cursor,…

Start, observe, and interact with Claude Managed Agents from any MCP client — launch an agent, poll its events to watch it work, reply,…

Secure ADB-based MCP server for AI assistants (Claude, OpenCode, VS Code). Read-only logcat, UI hierarchy, package listing, and…

Free developer subdomains with DNS, catch-all email, and webhook capture, managed via MCP.

Local-first MCP server for task tracking and coordination of autonomous AI coding agents.

npm MCP — search packages, bundle sizes, vulnerabilities, compare downloads.

x402-native API gateway with 20+ capabilities (web-extract, web-search, translate, image-generate, screenshot, PDF, OCR, and more) payable…

MCP server for Atlassian Jira and Confluence with schema-validated Markdown↔ADF conversion. Catches content-model violations at conversion…

AI design fidelity — compare Figma designs or screenshots against rendered UI. No API keys.

Turn any OpenAPI 3.x spec into callable MCP tools for Claude. No custom integration code needed.

Test, score, and inspect n8n workflows via MCP. Config-driven test suites with two-tier scoring, lightweight execution traces, and a…

Screen-reader navigation cost analyzer. Scores AT user effort to find, reach, and operate content.

Zero-config MCP server that gives AI coding assistants a real-time diagnostic snapshot of your local dev environment. Detects framework,…

Fault injection + model-free reliability scorecard for MCP servers. Injects timeouts, malformed JSON-RPC, truncated & corrupted-but-valid…

Local stdio MCP server for cached, loop-aware JS/TypeScript diagnostics (Oxlint, tsc, Biome).

Agentic code review, no signup to try: reality gates + frontier-model review, with veto.

Evaluate, benchmark, and simulate AI agents on the VerifyAX agent-evaluation platform.

Behavioral verification intelligence for AI coding agents. 17 MCP tools. Local-first. MIT.

Hundreds of x402-paid APIs as MCP tools, auto-discovered from Coinbase Bazaar. USDC on Base+Solana.

Pin visual feedback on any live web page and send it to Claude Code, Cursor or your AI agent.

Hosted MCP server that parses TypeScript and Python codebases into Neo4j knowledge graphs for blast radius analysis, dead code detection,…

MCP server for EchoRift infrastructure primitives (BlockWire, CronSynth, Switchboard, Arbiter)

ReSharper CLI inspection/cleanup via MCP. Unofficial: not affiliated with or endorsed by JetBrains.

Advisory AOS agent health scan before deployment (manifest, services, immune loop, evidence).

Static blast-radius audit for MCP servers before agent install. Manifest optional.

Stops agents double-firing side effects: 1,000 racing duplicates, exactly one execution.

Audit a web page's images: natural vs rendered sizes, oversized detection, and formats.

Record Python/Rust/TypeScript program runs to local SQLite; query call trees, exceptions, and value flow over MCP (refuses rather than…

Micro-settled web content extraction and JSON schema validation utilities for AI agents via XRPL.

Manage Featureflip feature flags, targeting and rollouts from AI agents and editors.

Reliable async execution for agent tool calls: schema gating, retries, idempotency, audit trail.

Free stdio bridge to Delx Protocol: resume after compaction, warm handoff, recover. No API key.

23-in-1 developer utility toolkit — search, exchange rates, crypto, QR codes, and more

Code graph context engine with 24 MCP tools. 170+ languages via tree-sitter.

23 API tools for Claude Code — email, DNS, SSL, NLP, scraping. Free tier included.

A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.

Local ledger for development ports: leases a block of ports to each working copy of a project (a clone or a git worktree), writes `.env`…

Renders HTML in a headless browser and detects layout defects numerically (text overlap, element overflow, placeholder leftovers) without…

Codebase intelligence and context engine for AI coding agents. Indexes a repo into a deterministic code graph (symbols, references,…

29 free tools: DNS, email auth (SPF, DKIM, DMARC), TLS, headers, WHOIS, dev utils.

Codebase health MCP: dead code, cycles, coupling, architectural drift.

Read-only SonarQube Community Build access for AI agents: issues, hotspots, rules, code snippets

Gives coding agents the user's own view and control of overseer.nvim tasks in Neovim

MCP server for interacting with cloud deployments of Jetbrains Datalore platform. Fully incorporated Datalore API ( run, run…

Hybrid search (vector + BM25 + code graph) with structural code graph analysis and persistent semantic memory in a single local server. 10…

Manifest-driven MCP server scaffolder and runtime hub for tool integrations.

Read-only server exposing the agentic-os governance, SDLC, and QE methodology to any MCP host; never writes to your repo and never…

TIBET provenance tracking for AI decisions. Cryptographic audit trails with ERIN/ERAAN/EROMHEEN/ERACHTER intent logging for compliance.

40 regulation-and-deadline linters as MCP servers (EU CRA/CSAF, DORA, NIS2, EU AI Act, PCI DSS 6.4.3, WCAG 2.1 AA, EN 16931 e-invoicing,…

Local CI/CD engine for AI agents: listens to [LGH](https://github.com/JoeGlenn1213/lgh) git events and runs plugin jobs…