Remote Servers

F

Fixie MCP Server

onikora

Parse FIX messages and help agents create Fixie initiators

O

opencrater-mcp

open-crater

Monetize your MCP server or CLI: live OpenCrater network stats + how maintainers earn USDC

O

Open Source Supply Chain Risk

apifyforge

Open source supply chain risk analysis via MCP — give your AI agent direct access to CVE records, CISA KEV exploits, maintainer bus-factor scores, and typosquat detection across 7 live intelligence sources.

Z

ZeroStart Paid Service Tools

oppenheimervonbraun

Bounded data, document, web-quality, and operations services purchased with USDC through x402

O

Orbis Api Marketplace

OrbisAPI

Browse and subscribe to 24,200+ x402 enabled APIs autonomously. AI agents get a live API key in 3 tool calls — no browser, no OAuth, no human in the loop. Solana and Base USDC.

4

402MCP.org — HTTP 402 & Agent Payment Registry

402mcp.org

Decode HTTP 402 challenges (L402, x402, MPP) and choose agent payment rails from an open registry

L

llmref

llmref.org

Versioned documentation registry and semantic search for AI tools and coding assistants.

S

Site Passport

sitepassport.org

Live-checks whether a WordPress site is ready to be safely operated by AI agents

S

SlopScore

slopscore.org

Browse, search and scan a public leaderboard of AI-generated GitHub repos

H

HTML Email Playbook

OsamaHassouna

Teaches AI to write HTML email that renders in Outlook, Gmail, and Apple Mail. 19 rules, 6 comps

A

ai-model-lifecycle-index

oscarlopez-gif

Cross-vendor AI model lifecycle: status, sunset dates, and migration targets, source-cited

A

argentina-price-index

oscarlopez-gif

Daily Argentina food & beverage price index, source-cited from public retailer prices

S

SeenRelay

ovladon

Avoid redundant expensive validation. CHECK recent evidence; OBSERVE fresh independent results

S

Stride — AI software delivery platform

stride.page

Your team's stories, acceptance criteria, designs and docs, for coding agents. Sign in with OAuth

O

oldweb-diagnostics

palthainon

Public DNS, HTTPS and deployment checks, plus offline email header and delivery-log tracing

O

oldweb-logs

palthainon

Offline log parsing, CI failures, HTTP capture analysis and bounded JSON configuration validation

B

BountyRadar MCP

PanStories

Ranked feed of AI-agent-solvable bounties, scored for solvability and competition

E

Email Verifier MCP

PanStories

Verify email deliverability with RFC format, MX, SMTP and disposable-domain checks

P

Paper Lantern

paperlantern-ai

Paper Lantern setup CLI - one-line install to configure Claude Code, Cursor, Windsurf, Copilot, Codex, and Gemini CLI with Paper Lantern

P

Password Strength X402

Br0ski777

x402 micropayment API for AI agents. Evaluates password strength and security. Pay per call with USDC on Base.

P

Pay Humans

Krishnan-govindan

The human API for AI agents. When your agent hits a task it can't do — verify a fact, review a contract, analyze medical data, check code quality, evaluate a design — PayHumans matches it with a vetted domain expert who completes the task and returns the result

P

PayU Docs

payu-intrepos

Search PayU docs, browse the payment integration catalog, and fetch production-ready code.

G

Glassbox Agent Arena

philipwright1295-wq

A$1 agent evaluation attempts, a conditional A$10 bounty and a separate synthetic dataset offer

P

PHP MCP Protocol Server

Lucasdoreac

MCP server for PHP Universal — integrates PHP with the Model Context Protocol

D

databutler-software-eol

physics-star-cat

Is this version still supported? End-of-life dates for 14 runtimes and operating systems

P

Picodev Lab

PICODEV-SAS

Arduino benches simulated in the browser: sessions, sketch push, simulation, tests, challenges.

P

pipehero

pipehero

Debug webhooks from your AI agent: inspect and replay captured webhooks on localhost

A

Ai Briefing

pipeworx-io

AI Briefing MCP — Keep AI models current on industry developments

A

Ai Feeds

pipeworx-io

AI Feeds MCP

A

Ai Model Experiments

pipeworx-io

AI Model Experiments MCP ('Model Lab') — run the same prompts across many AI models simultaneously…

A

Algorithm Finder

pipeworx-io

Algorithm Finder MCP — which algorithm, data structure or technique fits a computational problem…

A

Apis Guru

pipeworx-io

APIs.guru MCP — keyless directory of 2,500+ public APIs and their OpenAPI specs. https://apis.guru

B

Base64

pipeworx-io

Encoding MCP — Base64 / Base64URL / Base32 / Hex.

B

Bundlephobia

pipeworx-io

Bundlephobia MCP — npm bundle-size analysis

C

Caniuse

pipeworx-io

caniuse MCP — browser feature support tables

C

Chainlist

pipeworx-io

Chainlist MCP — registry of EVM chains

C

Chrome Ux Report

pipeworx-io

Real-user Core Web Vitals for any website with enough traffic, from Google's Chrome UX Report…

C

Chrome Web Store

pipeworx-io

Chrome Web Store — public extension listing data: a single extension by id, free-text search, and…

C

Clearlydefined

pipeworx-io

ClearlyDefined — the licence, copyright attribution and provenance actually found inside an…

C

Codeforces

pipeworx-io

Codeforces MCP — public read API.

C

Codestats

pipeworx-io

Code::Stats MCP — public user XP / activity.

C

Codewars

pipeworx-io

Codewars MCP.

C

Color

pipeworx-io

Color utilities MCP.

C

Crates

pipeworx-io

Crates.io MCP — wraps the crates.io REST API v1 (free, no auth)

C

Crc

pipeworx-io

Checksum MCP — CRC-32 & Adler-32

C

Creditcard

pipeworx-io

Credit-card number validation MCP

C

Crontab

pipeworx-io

Crontab expression MCP

C

Csv

pipeworx-io

CSV <-> JSON MCP

C

Currencyformat

pipeworx-io

Number & currency formatting MCP

D

Deno Land

pipeworx-io

deno.land/x registry MCP. Keyless.

D

Deps Dev

pipeworx-io

deps.dev MCP — Google's package metadata + dependency graph API.

D

Dev Feeds

pipeworx-io

Developer Feeds MCP.

D

Devdocs Io

pipeworx-io

DevDocs.io MCP.

D

Devto

pipeworx-io

DEV.to MCP — wraps the DEV Community API (free, no auth for public reads)

D

Diff

pipeworx-io

Text diff MCP.

D

Dns

pipeworx-io

DNS MCP — DNS and network lookup tools

D

Dockerhub

pipeworx-io

Docker Hub MCP — wraps the Docker Hub v2 API (free, no auth required for public data)

D

Domains

pipeworx-io

Domains MCP — domain registration lookup + availability search over live RDAP (ICANN standard…

D

Dummyjson

pipeworx-io

DummyJSON MCP.

D

Duration

pipeworx-io

ISO 8601 duration MCP.