MCP Server Directory

Posylai — AI Email Builder ru.posylai/email

Build responsive HTML email campaigns from any brand website: design, QA, export.

Deterministic eligibility decisions and test-driven rule authoring via the Aethis developer API.

PESEL/NIP/REGON Validator com.apished/pesel-nip-regon-validator

Validates Polish PESEL, NIP, and REGON checksums; PESEL also decodes birth date and sex.

Debug embedded firmware on real hardware: J-Link probes, Cortex-M faults, RTT logs, GDB.

flightclaw com.flightclaw/flightclaw

Search ~300 airlines and book flights with a checkout link. OAuth sign-in by email code.

email-validator io.github.ryuamarines/email-validator

Validates email syntax and MX records. x402 payment required (testnet USDC).

OKC Custom Home & Remodel Readiness Planner | Cosmopolitan Company io.github.janoliverautomation-stack/okcluxuryhomeplanner-com

Evaluate your project path, property readiness, budget planning, builder questions, smart-home prior

Search, read, create and organise code snippets in SnipperApp 3, a native macOS snippet manager.

Evidence-bound REW measurement, analysis, conservative EQ, DSP, and listening-test tools.

useqr-mcp io.github.aaronte/useqr-mcp

Static QR PNG/SVG for agents. Designer and dynamic codes live at useqr.co.

Rapidly co.rapidly/rapidly

Test the idea before you build it. Rapidly works inside your AI agent.

Sandboxed test runs for coding agents: compact typed verdicts with failure fingerprints and history

MCP server for Jira Service Management Operations — alerts, on-call schedules and responders

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

Build, edit, solve and analyse Convexity energy-system models from any MCP client; drives the app.

visa-requirements com.jojapi/visa-requirements

Visa Requirements: Most up-to-date visa requirements with color-coded status indicators covers 200.

roastify-mcp io.github.lonniev/roastify-mcp

Roastify Developer API MCP Service — Tollbooth DPYC monetization

Query Obyte mainnet and testnet: balances, units, autonomous agents, AA state, dry runs, tokens.

Wedyesday — wedding planning com.wedyesday.mcp/wedyesday

Plan a wedding in chat: search vendors, get regional costs, build a checklist and budget.

Inwardis com.inwardis/inwardis

Self-hosted architecture model that agents read layer by layer, search, build and correct.

TrustScan io.github.entradox/trust-scan

Security scanner for MCP servers and skills: Unicode injection, patterns, secrets.

Exploit-DB New Exploits & Proof-of-Concepts — buy per-query in-session (exploitdb) com.a2awire/data-exploit-db-exploit-database-proof-of-concept

Exploit-DB: new public exploits & PoCs, daily. Register in-session — free testnet funds.

x402 MCP Starter io.github.kadopi/x402-mcp-starter

Free self-hosted x402 USDC billing for Cloudflare MCP servers, with a Base Sepolia test endpoint.

Attest agent decisions and verify records on a public ledger. Evidence, not just data.