MCP server directory
Communication MCP servers
Categorized Communication from each server's recorded tool names and description — the shelf reflects what the contract contains, not what the listing copy claims.
Call2Me
mcp.call2me.app
Place real phone calls, read transcripts, run a live interpreter and buy numbers.
MailSenpai
mcp.mailsenpai.com
Hosted email marketing MCP with OAuth and 74 tools for MailSenpai, SMTP Senpai and email diagnostics.
Mailzzy
api.mailzzy.com
Email marketing: campaigns, audiences, contacts, segments, templates and reports.
SuperMailbox
api.supermailbox.app
Search connected email, read and manage messages, draft and send, and manage rules for new mail.
100Hires - AI ATS & Recruitment Software
mcp.100hires.com
Official 100Hires MCP: AI ATS & Recruitment Software for candidates, jobs, applications, interviews.
7IT Solutions
7it.co.il
Store speed tests, automation ROI, a studio profile, Field Kits and guides from 7IT Solutions.
a2a2p — Agent-to-Agent-to-Physical
a2a2p.com
Turn agent intent into physical parts: engineering review, measured geometry, calibrated pricing.
abundance-apis
abundanceapis.com
Try 26 utility REST APIs keylessly: NAICS classification, IP geo, email validation, currency.
Activecampaign
gateway.pipeworx.io
ActiveCampaign MCP Pack — email marketing + CRM (API v3).
AdButler
mcp.adbutler.com
Manage AdButler campaigns, zones, ad items, VAST, and reports from Claude, ChatGPT, and Cursor.
agendaforge
mcp.agendaforge.app
Event management for organizers: events, sessions, speakers, agendas, forms, approval-gated writes.
AgentAddress
agentaddress.dev
Persistent webhooks, callback queues, and an email inbox for AI agents that outlive the run.
AgentAegis
agentaegis-mcp-production.up.railway.app
Pay-per-call cybersecurity for AI agents: vuln scans, threat intel, compliance, code security.
agent-cold-email
agent-cold-email-api.yaakovscher.workers.dev
Coldrig — cold-email infra run by your agent: 28 MCP tools, live sending, free sandbox. $99/mo.
Agent Control
agent-control.net
External audit for your agents. Spend control for agent wallets. You keep the keys.
Agent Data Tools: Company, compliance and checks
agent-data-tools.revmesh2074.workers.dev
12 tools: OFAC sanctions, counterparty checks, company, domain, email. 25 free calls.
AgentDiet B2A Email Deliverability, MX, SPF & DMARC Verifier
email-verify.agentdiet.dev
Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMA.
AgentDiet B2B Company, Tech Stack & Contact Lead Enrichment
company-enrich.agentdiet.dev
Extracts verified emails, social links, 40+ tech stack signals, pricing tiers, and company summar.
AgentDomains
mcp.agentdomains.co
Free domains under makes.fyi or agentdomains.co for the sites and APIs AI agents build.
Agent Email List — Free SMTP Relay for AI Agents
ai.agentemaillist.com
Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.
agenten-tuer
agent.flowboxx.de
flowboxx Agenten-Tuer: ehrliche Antworten zu Websites, Software, KI, Telegram. Anfrage an Menschen.
AgentFeed
x402.ochinimus.app
Collateral exit liquidity, liquidation tape and peg data. 51 tools, paid in USDC via x402.
Agent Harbour
kicorn.com
Find tasks for people and AI; publish, claim, discuss and deliver work with verified-email access.
AgentKit x402 MCP server
agentkit-x402.zenith-ops.workers.dev
Remote MCP tools for pay-per-call email, domain, SEO and Swedish data utilities (x402).
AgentKit x402 - pay-per-call tools for agents
agentkit-x402.erikssonanton2001.workers.dev
Email, DNS, SPF/DMARC, site contacts, Markdown, IBAN, Swedish validators. Pay per call (x402).
AgentMart
agentmart.ciphyr.ai
Shop for AI agents: always-on utilities and tested code kits, paid from a prepaid balance.
Agent Papers
agentpapers.dev
Registry of companies selling AI agents identity, phone, email, addresses, money, legal, insurance
AgentPub
mcp.agentspub.ai
Private agent messaging: DMs, group channels, presence, search, and webhooks over MCP or REST.
Agent Tools MCP
agent-tools-mcp.yvan11.workers.dev
32 free MCP tools for data validation, text optimization, and synthetic test data.
Agent Utility MCP
agent-utility-mcp.insivotron.workers.dev
Stop your agent before it runs rm -rf /etc or emails your .env. Deterministic preflight checks.
agmail
agmail.shveik.dev
Email inboxes for agents by the hour: wait for a mail, get the code or link. Pay per call.
ai-agent-hub
ai-agent-hub-1.onrender.com
Pay-per-call APIs for AI agents: queries, storage, ads. Billed in USDC via x402.
AI Applyd
mcp.aiapplyd.com
ATS resume scoring, job analysis, interview prep, and auto-apply that verifies each submission.
AI Capability Rollout Framework
airolloutframework.com
90-day AI adoption framework for managers: overview, pricing, FAQ and an AI readiness assessment.
AICQ
getaicq.com
Messaging network for AI agents: talk to other people's agents over MCP. Free forever.
AI PM Lab
aipmlab.io
Learn how AI products work: lessons, cost calculators, real experiments, spec and eval guides.
AI SENSE Free Public Tools
aisenseapi.com
Public MCP tools for approvals, webhooks, temporary storage, short links, time and UUIDs.
Alfabot MCP Server
alfabot.cl
Consulta de planes de productos Alfabot y agendamiento de reuniones para colegios y empresas
All4Clinic
api.all4clinic.com.br
Help guides, plans and demo booking for All4Clinic, the clinic management software used in Brazil
Alternative Asset Literacy — Advisor
alternativeassetliteracy.com
Client-education toolkit for advisors: deep-dive tracks, compliance self-check, calculators.
AngelBacked Angel Investors
www.angelbacked.co
Search 58,000+ angel investors and VCs by market and location, see portfolios, and reveal emails.
Antevo Mandates
api.antevo.ch
Your client book: who is due a review, what their mandate allows, and what has moved.
APEX on X1
apexfaucet.xyz
Can you actually sell it? Exit analysis and impostor detection for X1 and Solana.
APICK Business
apick.app
Korean business registry, corporate info, parcel tracking, validation APIs
ApiOne B2B Enrichment (GCC and MENA)
apione.store
B2B company, people and email enrichment with cited sources, built for GCC and MENA companies.
APIShed
apished.com
Validates PESEL/NIP/REGON/IBAN/Luhn/ISBN/EAN/SWIFT-BIC/VAT; RPN calc, date math, hashing, tokens
Apollo.io B2B Person Enrichment & Verified Email Finder (x402)
agent-distribution-gateway.vercel.app
Apollo.io B2B Person Enrichment & Verified Work Email Finder via x402 on Base ($0.10 USDC/call).
Applystead
applystead.com
Search open jobs from employers' own career sites: roles, companies and posting status.