MCP Server Directory

SenderKit com.senderkit/senderkit

Build and send email, SMS, and push straight from your AI agent.

Capability-gated Gerrit code review tools with opt-in review notifications pushed into the session

Senzing com.senzing/mcp

Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting

Deterministic API regression checks for AI agents: snapshot a baseline, catch broken contracts.

Code Intelligence Platform for AI Coding Agents

sukimalabo-tester com.shonanfarm/sukimalabo-tester

みんなのテスター（スキマラボ）公開情報MCP。Google Playクローズドテストのテスター集めを支援する相互テストコミュニティの情報を提供する。

Oravan org.oravan/mcp

Nonpartisan U.S. Congress data: bill decodes, rep lookup, bilingual EN/ES, read-only, no accounts.

Skyalo Travel Connectivity Guide com.skyalo/travel-connectivity-guide

Estimate mobile-data needs and build a provider-neutral connectivity checklist for any trip.

StoriesOnBoard - structured specifications for AI Agents com.storiesonboard/storiesonboard

Turn PRDs and product ideas into structured specs so coding agents build your intent, not theirs.

Stratalize Oracle com.stratalize/oracle

Crypto price and threshold consensus with ML-DSA-65 attestation and Base anchoring.

Pharaoh so.pharaoh/pharaoh

Codebase knowledge graph — architectural awareness for AI coding agents via MCP

sygnldata — market intelligence for trading agents com.sygnliq/sygnldata

Market regime, execution-cost, bar-QC and backtest-audit tools for agents. Pay per call via x402.

mcp-server com.testrigor/mcp-server

Manage test suites, run tests, view results, and automate QA workflows via AI with testRigor.

textarttools-mcp com.textarttools/textarttools-mcp

Unicode text styling and ASCII art generation with 23 styles and 322+ figlet fonts

developer-tools-mcp-server com.thenextgennexus/developer-tools-mcp-server

Search GitHub, npm, PyPI, StackOverflow, ArXiv from one MCP — built for coding agents.

github-mcp-server com.thenextgennexus/github-mcp-server

GitHub repo analytics: stars, trending, code search, contributor maps for project research.

calculators com.calcfleet/calculators

Tested financial & practical calculators as free, no-auth MCP tools for AI agents.

MCP server for opn.onl: shorten links, analytics, branded QR codes, and link management.

Webcake Landing io.github.vuluu2k/webcake-landing-mcp

Build, validate, and persist Webcake landing-page source JSON: element schemas plus AI usage hints.

Persistent memory for Claude Code. Search, recall, and re-inject context from any session.

developer-tools net.programmes/developer-tools

65+ free in-browser developer tools (JSON, Base64, JWT, hash, regex…) callable over MCP.

MCP server for SalesBuildr — quoting and sales workflows for MSPs.

agentmailrooms-mcp com.clauxel.agentmailrooms/agentmailrooms-mcp

A paid remote MCP for OpenAI Codex agent coordination MCP, built to return verdicts, receipts, usage

agentskillupdategate-mcp com.clauxel.agentskillupdategate/agentskillupdategate-mcp

Paid remote MCP for Claude Code skill update gate MCP, structured receipts, audit logs, and reviewer