Development MCP Servers

Read-only MCP server for EventSend: search your product events, follow one customer's timeline, and find out why a Slack, Discord or webhook notification failed.

Add, check, diagnose and remove your SaaS customers' custom domains from any MCP client.

Firecracker micro-VMs for AI agents. Own kernel per sandbox, private networking, pause-to-zero with state preserved, no egress fees. SDK, CLI, MCP, REST.

Release intelligence for AI coding tools (Claude Code, Codex CLI, Cursor, Gemini CLI, Copilot CLI and more): latest releases, what changed since a version, breaking changes, upgrade notes and release cadence. Free, read-only, no sign-in. Endpoint: https://mcp.havoptic.com/mcp

Official SMSPVA documentation MCP: search Activation V2, Rental and Private Email API guides and get code examples in English, Spanish and Chinese.

Communicate with Kubernetes clusters in a secure way, with limited permissions and expiring credentials

Tamper-evident, quantum-sealed audit logs for AI agents: log every action, prove it later, sealed compliance reports (EU AI Act, OMB AI inventories, post-quantum plans), agent trust passports, wallet Know-Your-Agent, spending mandates. Remote MCP, free tier, x402.

Read-only catalogue for an agent operating kit for Claude Code and Codex: kit contents, free sample, price quotes and x402 payment terms. No auth.

Spec-driven dev workflow MCP for AI coding agents: start_feature/start_bugfix orchestration, resumable plans, a converge gate requiring requirements/spec/implementation/test/review evidence, and cross-session history. Install: npx -y mcp-probe-kit@latest (MIT).

Desktop (Rust + Tauri 2) MCP workspace that turns a local project into an AI-developable area: file read/edit, command and test execution, Git status, plus project-local history sessions that restore context in a new conversation. Windows/macOS installers, Apache-2.0.

Hosted MCP server that puts real iPhones in your AI agent's hands. It takes screenshots, taps, swipes, types and opens apps, and reads the screen with its own model.

Hosted Discord MCP server. Let Claude, ChatGPT or Cursor build and run your Discord bot.

Run real Lighthouse on a list of URLs, mobile or desktop. One flat row per URL: performance, SEO, accessibility and best-practices scores, LCP, CLS, TBT, FCP and top failed audits. $0.008 per audited URL, failed audits free. Runs as an Apify Actor, callable from MCP clients via the Apify MCP server (https://mcp.apify.com/?actors=pennydata/bulk-lighthouse-audit).

Turn URLs into full-page PDFs or PNG/JPEG screenshots: $0.004 per PDF, $0.0008 per screenshot, failed pages free. Paste URLs or HTML, get downloadable files back. Cookie banners removed, lazy-load scrolling, no API key. Runs as an Apify Actor, callable from MCP clients via the Apify MCP server (https://mcp.apify.com/?actors=pennydata/shot-pdf).

Find the CMS, framework, analytics and CDN of any website list for a flat $2 per 1,000 sites, with evidence per detection. No API key, unreachable URLs free, set a max spend. Runs as an Apify Actor, callable from MCP clients via the Apify MCP server (https://mcp.apify.com/?actors=pennydata/website-tech-stack-detector).

Paste domains, get one row each: registrar, created, expires, nameservers, MX and availability. Up to 1,000 per run, $2.50 per 1,000, errors free, no API key. Runs as an Apify Actor, callable from MCP clients via the Apify MCP server (https://mcp.apify.com/?actors=pennydata/bulk-domain-whois-dns-lookup).

Capgo: push fixes to your Capacitor users in minutes, build signed iOS and Android apps without a Mac, and roll back in one click. Manage live updates, channels, rollouts, devices, native builds and stats from the hosted endpoint https://api.capgo.app/mcp or locally with npx @capgo/cli@latest mcp.

Connect your AI assistant to AgentX, a cloud console for a fleet of AI coding agents that run on your own machines. OAuth.

Evidence-backed system prompts for AI agents. Personas grow traits from observed behavior, with level-ups and full rollback. MCP server, CLI and Agent Skill.

Video prompt hub: one idea, rewritten per AI video model's own syntax across 15 platforms, with storyboard scripts. Web, CLI, MCP server and Skill, zero dependencies, MIT licensed.

For Claude Code and Codex: writes end-user help guides from your source code, with a screenshot of every screen. Free, open source (Apache 2.0).

I built RackArchitect (MIT license), a deterministic "Rack-as-Code" 3D/2D planner and 3D-printable carrier generator for 10-inch mini-racks (DeskPi RackMate, Digitus), 6-inch micro-racks, and 19-inch enterprise server racks.

Manage App Store and Google Play apps from your assistant: listings, screenshots, builds, releases, reviews and metrics. Remote server, OAuth; read-only by default, store writes wait for approval.

Dedica tests your website the way AI agents use it, then gives your team a fix for every place they fail. 125 free checks across Discovery, Access, Usability and Payments, with a public API and an MCP server.

JetBrains ReSharper command-line inspection and cleanup for C#, over MCP. Unofficial - not affiliated with or endorsed by JetBrains.

Create and manage Crontap schedules, uptime monitors and heartbeat checks by chatting with your AI assistant. Included on every plan, including free.

Combat arena where AI coding agents upload JavaScript bots that fight ranked matches with verifiable replays.

OpenQodex's MCP server gives your coding agent a code graph of your repository, built on your machine with no model. Ask who calls a function, what a change reaches and which tests cover a symbol. Every answer carries its evidence. Runs over stdio and opens no network port.

Query Telemetry Machine observability data and instrument your apps with OpenTelemetry.

Lets coding agents search and install real SwiftUI components into your iOS app.