422 MCP servers and agent skills in the Developer Tools category, ranked by quality score.
MCP server for NowSecure Platform mobile security testing. List applications, pull remediation findings via GraphQL, and generate PDF reports locally (bypasses broken UI export). Published as `nowsecure-mcp-server`. `npx -y nowsecure-mcp-server`
Generate engineer-grade SaaS specifications — design systems, database schemas, and RLS policies for AI build tools like Lovable, Cursor, and Claude Code.
MCP server for microservices.sh: inspect verified Cloudflare-native modules/templates, generate app plans/projects, run checks, and trigger confirmation-gated preview deploys. Install via `npx -y @microservices-sh/mcp`.
Webhook & callback layer for AI agents: create a callback URL, then `wait_for_callback` to block until the webhook lands — signature-verified and decrypted — instead of polling. Verify HMAC, list/replay callbacks. `npx -y @hooksense/mcp`
Visual feedback as agent work packets. Stakeholders drop pins on your live app; your AI coding agent reads each pin (selector, screenshot, DOM snippet, thread, acceptance criteria) via MCP and ships the fix, recording the commit/branch/PR on resolve. Install: `npx pincushion-mcp`.
Drives the full App Store release cycle for iOS/macOS apps: version bump, archive + sign + TestFlight upload via your fastlane lane (as async jobs with log polling — the step REST-only ASC servers can't do), metadata updates, and review submission via the ASC API. Zero-dependency ES256 JWT auth. `npx appstore-release-mcp`
Audit the images on any web page: natural vs rendered dimensions, oversized-image detection, and format breakdown, so agents can check web-image performance. Calls the hosted imagedimensions.com API, so no local browser is required. `npx -y imagedimensions-mcp`
Claude Code knowledge platform & marketplace MCP server. Search and share snippets, prompts, Q&A solutions, error fixes, and MCP server configurations from the ClaudeCodeNavi community.
280+ free developer & security tools as MCP tools — encoders/decoders, hashes (MD5/SHA/HMAC/bcrypt/argon2/scrypt), JWT decoder, regex tester, JSON/YAML/XML formatters, network diagnostics (ping/traceroute/dig/whois/SSL/SPF/DMARC), OSINT (IP geo, EXIF, vendor lookups), and more. Proxies to the public API at onlinecybertools.com — no auth required. Published to npm with SLSA v1 provenance.
Grounding / hallucination guard: verify a claim against evidence (Supported/Refuted/Not Enough Evidence) with a confidence + abstain flag, for RAG and agents. `npx -y eleata-verify-mcp`.