MCP Servers

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mail-send

mailkite.dev

Send transactional email over a verified domain — templates, attachments, custom headers

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mailkite

mailkite.dev

Send email, manage domains, DNS, webhooks, templates, and inbound routing on MailKite

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MailProbe

mailprobe.dev

Verify email addresses in real time — deliverability, disposable and role addresses, typo fixes

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mailverdict

mailverdict.dev

Keyless email checks — disposable, role, and free-provider detection, MX, and typo suggestions

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MapRouter

maprouter.dev

Maps, geocoding and time zones for AI coding agents, on OpenStreetMap, with hard prepaid spend caps.

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MeshArc

mesharc.dev

Crawl and scrape websites to clean markdown, and track what changed between crawls

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MetaMesh-UGA

metamesh-uga.dev

Serverless edge control plane to discover, route and monetize 14,982+ MCP tools

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mnemodb

mnemodb.dev

Persistent agent memory as plain Markdown in your repo — readable, diffable, with provenance

D

Domain availability and quotes (demo)

modelmarket.dev

Is a .com/.net/.org name free, and a signed one-year quote. Demo seller, orders refused. Free.

E

EMPORION — business facts from public registers

modelmarket.dev

EU VAT and EORI checks, sanctions screening, company and LEI lookup, ECB rates. Free, no key.

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MCP security checks — WARDEN and HISTOR

modelmarket.dev

Scan MCP tool definitions for poisoning, look up server history, count tool-list tokens. Free.

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modelright

modelright.dev

Live registry of AI model specs, context windows, and per-token pricing

D

databroker

mossforge.dev

Pay-per-call UK MOT history, reliability analytics and identifier utilities. x402 USDC on Base

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mossgate-mcp

mossgate.dev

MCP stdio server exposing mossgate trust and rue render APIs with x402 USDC payment

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motionprompts

motionprompts.dev

Plan pages, pick GSAP motion components and get their build prompts and composition rules.

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nakodo

nakodo.dev

Warm introductions to the right builder, matched privately on your work. Double opt-in, no feed

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Nucleo for WordPress

nucleowp.dev

WordPress page builder MCP server: AI agents build pages, layouts and design tokens with OAuth 2.1

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OmniDebugLink

omnidebuglink.dev

Remote debug iOS/Android/Unity/Godot/Flutter/RN/Web on real device. ui-tree, screenshots, taps, tests

O

On-chain Forensics

onchainforensics.dev

Token due diligence for AI agents: a letter grade before a buy, mint checks, settle-safe screens.

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OpenAEO

openaeo.dev

Asks 8 AI crawlers for your page, checks who really answered, and writes the fixes. MIT

O

Outbox

out-box.dev

Publish and manage HTML pages in your agents-first Outbox library from any MCP client

O

overspan

overspan.dev

OpenStreetMap queries as MCP tools, served by the Overspan hosted Overpass API

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Pagewatch

pagelens.dev

Read a URL as clean markdown, screenshot a website, url to PDF. Web access for agents, no signup

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Apex Edge — x402-paid machine services

nonsynthetic.pages.dev

x402-paid MCP tools: utils, audit screens, corpus search, inference. USDC Base+Solana

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Project100 — open work and tasks for agents

project100-7vk.pages.dev

Free work board for autonomous agents: pick a task, deliver it, get a verifiable certificate.

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SmithTalks

smithtalks.pages.dev

Pseudonymous message network for agents. Claims, marketplace, 20 tools, verifiable seal

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PatchLabs

patchlabs.dev

Security checks for AI-built apps (Lovable, Supabase, Bolt): RLS, headers, monitoring, fixes.

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vend-api-merchant

extract.paypercall.dev

Pay-per-call web intel: extract, search, link check, domain, geo, Nano. Settled via Nano x402.

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pdfops-mcp

pdfops.dev

PDF tools for AI agents: inspect, fill, merge, split, rotate, watermark, protect and invoice PDFs

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pdfrender

pdfrender.dev

HTML and CSS to PDF MCP server with page headers, footers and page numbers. No headless browser.

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pendnt

pendnt.dev

Human approvals, notifications, inbound webhooks, wake-ups for headless agents. Free trial: /try

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Phonebox

phonebox.dev

Cloud Android phones for AI agents: create a phone, read the screen, tap, type, install APKs, park.

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phpray

phpray.dev

Ask an agent why a PHP site is slow: every request with its SQL, HTTP calls, errors and N+1.

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Plainmail

plainmail.dev

Email on your own domains: add a domain, write its DNS, create mailboxes, read and send mail.

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Plug and Ship

plugandship.dev

Search MCP servers, agent skills and coding-agent plugins: trending tools and best-of lists.

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PlugRail JP Corporate

plugrail.dev

Search Japanese corporations and verify invoice numbers using official National Tax Agency data.

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PlugRail JP Recall

plugrail.dev

Search Japanese product recalls by keyword and category using public Consumer Affairs Agency data.

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postbag

postbag.dev

Form backend that routes: one tool per Postbag API operation, plus quickstart and explain.

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Precleared Contact Check

precleared.dev

Cold email compliance check, 14 countries: per-address verdict, rule cited, signed receipt

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Pressmark

pressmark.dev

Create PDF invoices, estimates, contracts, and real estate documents. (mooshworks.com)

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PriceTrack

pricetrack.dev

Live SaaS pricing: current plans, verified price changes, and comparisons for 33,000+ products.

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Prismism

prismism.dev

Upload any file, get a tracked shareable link. DocSend for AI agents.

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Proxylang website translation

proxylang.dev

Translate a website into other languages from one script tag. Free trial, no signup.

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PublicSafetyAPI

publicsafetyapi.dev

US police, fire, EMS and hospital locations near any address, from federal HIFLD data

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Quellenkontor HR-Daten

quellenkontor.dev

Verified German HR data with legal source: minimum wage, social security, holidays, notice periods

R

receivemail.dev

receivemail.dev

Disposable email inboxes for agents and tests: create an address, wait for the email. No signup.

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Region Fetch

regionfetch.dev

Fetch any public URL as a visitor in a chosen country, with a signed receipt of its origin

1

100pro-token-risk

rendraputra.dev

Read-only risk tools: token screen, contract source, wallet. $0.10 USDC on Base

A

Aura

aura.rohnelt.dev

Email address, webhook, durable memory and zero-token waiting for agents. Paid in USDC via x402

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rostro

rostro.dev

Turn any LLM multimodal; generate images, voices, videos, 3D models, music, and more

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SafeGrd

safegrd.dev

Read backups and Fire Drills, and ask for a backup or a drill. No tool deletes a backup

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Development Safety System - MCP Server

fti9999

MCP server for session continuity and sandbox safety in LLM development workflows. Provides "pick up exactly where you left off" + "never break the main app" functionality.

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Agent Discovery Board by SarnAI

sarnai.dev

Free directory of MCP servers and x402 APIs for AI agents. Find them, or list your own in one call

A

Agent Output Verifier by SarnAI

sarnai.dev

Independent schema and rule check of AI agent output before you pay. Signed attestation and receipt.

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SatRank — Lightning trust + audit oracle

satrank.dev

Lightning trust + audit oracle. Score, pay, and audit L402 endpoints with Ed25519 receipts

S

ScratchRun

scratchrun.dev

Ephemeral MicroVM-isolated code execution for AI agents. Fresh VM per call, hard-purged after

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secretvoice

secretvoice.dev

Intimate voice AI: 29 voices, 22 languages, emoji vocal cues, multi-voice scenes

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seodata.dev: keyword search volume

seodata.dev

Keyword search volume, CPC, competition and similar keywords for 50+ countries

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sexai-mcp

sexai.dev

The network where AI agents breed — publish, import a GitHub repo as an agent, cross them

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Shotlane

shotlane.dev

A real browser for your agent: screenshots, page checks, Markdown and PDFs