MCP server directory
59888 public MCP servers from the official MCP Registry (26001 from verified domains, 33887 community). Search, filter, copy a setup snippet. Nothing here is installed by cosmic-mcp.
Community listing. Not installed or verified by cosmic-mcp. Check the source before you run anything.
Showing 211 to 240 of 26001
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3GPP Scout
com.3gppscout/scout
Hosted 3GPP MCP server for Rel-15–20 TS/TR search. Index stays current.
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3LT Mail & Fax
com.3lgrouptechnology/3lt-letter-mail
Letters + faxes for AI assistants in one MCP service. Letters from $1.97 all-in; faxes from $0.57.
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3Q PDF & SheetKit
com.getwold/3q-pdf
One-time purchase, no subscription: Windows PDF app with 36 offline commands and 8 Excel templates.
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3RD
com.get3rd.app/3rd
Your brand's visibility in AI answers: trends, competitor ranking, cited sources and next tasks.
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3TG Test Generation
dev.3tg/mcp
3rd Generation Testing (3TG) — generate deterministic test suites from Markdown spec tables via MCP.
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3dCMS
info.3dcms/mcp
Build a real 3D website by chatting: pages, models and text in space, published to a live URL.
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3dstreet
app.3dstreet/3dstreet
Drive an open 3DStreet scene tab from Claude Desktop or Claude Code via MCP tool calls.
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401k.loans: 401(k) loan and withdrawal calculators
loans.401k/401k-loans
401(k) loan true cost, loan vs. withdrawal vs. personal loan vs. HELOC, early withdrawal tax.
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402-mcp
dev.forgesworn/402-mcp
AI agents discover, pay for, and consume any Lightning-gated API autonomously
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402MCP.org — HTTP 402 & Agent Payment Registry
org.402mcp/registry
Decode HTTP 402 challenges (L402, x402, MPP) and choose agent payment rails from an open registry.
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402cron
com.402cron/402cron
Paid cron for AI agents: we call your https URL on schedule, signed. No account, paid with x402.
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402lounge
com.402lounge/mcp
Receipts, invoices and a payTo register for AI agents that pay with x402 (USDC on Base).
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402oracle
com.402oracle/402oracle
Signed verification attestations for agent decisions: business, price, freshness, claim checks.
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402post
com.402post/402post
Paid classifieds for AI agents: post a listing over MCP, pay with x402. No account.
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402registry
com.402registry/402registry
Does an AI crawler see your site? Free registry lookup, x402 pricing; checks paid in USDC on Base.
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404KIN FIELD Transaction Intent
site.chatgpt.cv5gyqnshz.field-404kin/transaction-intent
Token intent checks; no simulation/signing. Free trial ends 2026-09-25. No NFT required.
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42min
us.42min/meetings
Scheduling for AI assistants: bookings, availability, meeting polls and routing forms.
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442ball
com.442ball/442ball
442ball's weekly football club Power Ratings, league strength, runs and greatest sides.
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47620 Base + Polygon Data API
xyz.47620/evm-data
Pay-per-call Base and Polygon onchain data over x402 for AI agents.
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47620 Multichain Data API — onchain, crypto, utilities, x402 stats
xyz.47620/multichain
x402 pay-per-call: onchain data (Solana/Base/Polygon), crypto market, JWT/unit utils, x402 stats.
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47620 Solana Data API
xyz.47620/solana-data
x402 pay-per-call Solana data + crypto market + JWT/unit utils for AI agents.
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4ai – premium .ai domains for sale
ai.4ai/domains
Search 254 premium .ai domains for sale, get free .ai value estimates and real .ai sales data.
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4bl1ty
com.4bl1ty/mcp
Hire humans for physical-world tasks from your AI agent: missions, claims, proof, KYC status.
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4bots
net.4bots/4bots
Human-written daily modules your chief of staff adds to the morning brief. No key, no signup.
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4chems Platform — IUCLID, CHESAR & QSAR Toolbox hosting
com.4chems/platform-api
Remote MCP server for 4chems hosted IUCLID, CHESAR and QSAR Toolbox: onboarding, inquiries, admin.
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4dayweek.io Jobs
io.4dayweek/jobs
Search reduced-hours jobs and employers: 4-day weeks, 9-day fortnights, half-day Fridays and more.
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4grand
tennis.grand/4grand
Free fantasy pools for the four tennis Grand Slams. What play for love means, and who is winning.
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4me - Best Hotels — Hotel Booking
me.besthotels4/reservas
Search, quote and book hotels worldwide from your AI assistant. Live rates, pay in USD or BRL.
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4words
land.aletheia/4words
Ephemeral text/file sharing and real-time multi-agent chat rooms for LLM agents and humans.
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5-Source Parallel Corporate KYB & Counterparty Risk Dossier
io.ceadigital/corporate-kyb-risk-dossier
Parallel KYB dossier joining GLEIF LEI, SEC EDGAR, CFPB, USASpending & FDIC in <400ms.
Source: the official MCP Registry (registry.modelcontextprotocol.io), refreshed daily, plus public GitHub data. "Verified domain" means the publisher proved the namespace's domain to the registry; it is not a review. Machine-readable: /v1/directory/servers.