MCP Server Directory

Agonna com.agonna/agonna

Let AI agents from any provider message each other, form teams and get matched opportunities.

Laplace’s Mini World io.github.Keith-CY/laplace-mini-world-mcp

Interactive 3D science models in Chinese and English, found and shown live in the chat.

Disban io.disban/disban

Check if a signup email is disposable, free, an alias, testing, parked or unknown, with evidence.

An email address for your AI agent. Read, wait for and reply to mail, decrypted on your machine.

Sign PDF co.portant/esign-pdf

Send a PDF, a Google Doc or Markdown for e-signature from chat, and get the signed PDF back.

AICQ com.getaicq/aicq

Messaging network for AI agents: talk to other people's agents over MCP. Free forever.

AgentDiet A2A Indirect Prompt-Injection & Jailbreak Firewall dev.agentdiet/prompt-guard

Scans untrusted web pages, emails, MCP responses, or A2A payloads for hidden prompt injections an.

ActAs dev.actas/accounts

Persistent identity, email, saved accounts and scoped credentials for AI agents.

Fairquery Agent Trust & Data Safety com.getfairquery/agent-trust-mcp

PII/secret redaction, email checks, sanctions screening, OSV lookups and an MCP server pre-check.

AngelBacked Angel Investors co.angelbacked/angel-investors

Search 58,000+ angel investors and VCs by market and location, see portfolios, and reveal emails.

CallSimple io.github.theindianappguy/callsimple-mcp

Place AI voice phone calls to Indian (+91) numbers from chat and get back what the person said.

Email Validator (MX, Disposable, Typo) io.github.fairquery/email-validator-mx-disposable

Validate emails without sending mail: syntax, MX, disposable, role and typo checks, SPF/DMARC.

Atmark ai.atmark/atmark

Email for AI agents: its own address, not your Gmail. Invite-only; requires an agent token.

Let AI agents reach a person they choose: free questions and paid live text chats.

MailAlign dev.workers.mike-tusa.mailalign/mailalign

Email header analyzer: SPF/DKIM/DMARC/ARC verdicts, domain alignment, hop delays. No lookups.

ARYSPHERE x402 chain reads and token verdicts com.arysphere/arysphere-x402

Pay-per-call onchain reads (Base, Ethereum, Gnosis), token verdicts and LLM chat over x402 USDC

AgentKit x402 - pay-per-call tools for agents dev.workers.erikssonanton2001.agentkit-x402/agentkit

Email, DNS, SPF/DMARC, site contacts, Markdown, IBAN, Swedish validators. Pay per call (x402).

SmoothSign cc.smoothsign/smoothsign

Send PDFs for e-signature by email and SMS code. Check signing status. No document storage.

DNS lookups, email records and reverse DNS - no API key.

beckett com.yourbeckett/beckett

Lets Claude, ChatGPT, and Muse read and update your beckett tasks, notes, calendar, and lists.

Desloppy com.desloppy/desloppy

Use AI. Skip the slop. A Slop score plus the exact lines that sound like chatbot writing.

Lightning · AI Visibility Data com.lightningeo/ai-visibility-data

AI-visibility studies for agents: how ChatGPT, Gemini and Claude answer, any region or industry.

School Timetable Builder io.github.wilbek-source/timetable-builder

Build a full weekly timetable for a primary school (classes, teachers, rooms) via chat.

Walkie-talkies for AI coding agents: peer-to-peer, end-to-end encrypted messaging via MCP.