MCP Server Directory

5543 Model Context Protocol servers — searchable, rated, ready to install.

Punycode ACE prefix, host discarded io.github.sadri-dridi/puny-ok

Punycode ACE prefix, host discarded

remote git dev-tools Official Registry
Agent Observatory com.agent-observatory/agent-observatory

AI agent discussion board with threaded replies, permanent anonymous tripcodes, and a resident host.

remote dev-tools Official Registry
US state AZ io.github.sadri-dridi/st-az

USPS state code AZ.

remote git dev-tools Official Registry
Limon Digital Tools io.github.Lime-code09/limon-mcp

Free local micro-APIs: markdown cleaner, JSON validator, CSV-to-JSON, agent-config secret auditor.

git dev-tools Official Registry
Deep Blue Alpha — Ethereum Whale Data io.deepbluealpha/whale-data

Live Ethereum whale flows: token activity, top tokens, latest moves, Whale Sentiment Index.

remote dev-tools finance Official Registry
Agent Verifier guru.packet/agent-verifier

Test and debug your AI agent's Web Bot Auth (RFC 9421) signature: is it valid, and what to fix?

remote dev-tools security Official Registry
NASA Mission & Space News — buy per-query in-session (nasanewswatch) com.a2awire/data-nasa-mission-space-news

NASA mission & space news: launches, science. $0.01/query. Register in-session — free testnet funds.

remote dev-tools Official Registry
Proper Job Building Cost Calculator io.github.falsalama/proper-job

Free UK building-cost estimates, US beta estimates and scenario comparisons. No account needed.

remote git dev-tools Official Registry
HuggingFace Trending Models (hftrendingwatch) com.a2awire/data-huggingface-trending-ai-model

HuggingFace trending models — what's hot now. $0.01/query. Register in-session — free testnet funds.

remote ai-llm dev-tools Official Registry
Agent-Native Brain io.github.BuilderIO/agent-native-brain

Cited company knowledge from Slack, meetings, transcripts, and decisions

remote git communication Official Registry
Base32 encode, input discarded io.github.sadri-dridi/base32-ok

Base32 encode, input discarded

remote git dev-tools Official Registry
apkbuild io.github.rizwanqsf-sketch/apkbuild

APKBuild.org services: convert websites to Android APK/.aab and AI voiceover MP3.

remote git dev-tools Official Registry
TurnSignal for Playwright ai.turnsignal/turnsignal

Read-only Playwright CI results for agents: new vs known failures, flaky tests, test history.

local browser dev-tools Official Registry
memory-poisoning-scanner io.github.4hmetuyar/memory-poisoning-scanner

Scans agent code for untrusted input poisoning persistent cross-session memory

local git dev-tools Official Registry
dora-register-lint io.github.jmshinhwa/dora-register-lint

24 checks on the register CSV before it reaches the supervisor — LEI check digits, ISO dates and cod

local git dev-tools Official Registry
Signalcrest io.github.apolloprojectsllc-svg/signalcrest

Cross-source trend signals from 10 developer communities, scored every 30 minutes.

remote git dev-tools Official Registry
Infinite Audience io.github.no-fait/infinite-audience

Discover audiences, build segments, match and deliver data. Some actions may incur billable usage.

remote git dev-tools Official Registry
trkr io.github.trkr-ai/trkr

Stress-test portfolios against hundreds of regime-aware simulated futures for real markets.

remote git dev-tools Official Registry
Caravan io.github.Degrudv/caravan

Test-network group buying through nine buyer and seller tools.

remote git dev-tools Official Registry
buildtree io.github.engineerdeep/buildtree

Upload Android and iOS builds to buildtree and get install links, QR codes and tester feedback.

local git dev-tools Official Registry
US state HI io.github.sadri-dridi/st-hi

USPS state code HI.

remote git dev-tools Official Registry
Percent-decode length, input discarded io.github.sadri-dridi/percent-decode-len

Percent-decode length, input discarded

remote git dev-tools Official Registry
upcitemdb-mcp io.github.mrfentmen/upcitemdb-mcp

Barcode product lookup from UPCitemdb. No key required.

local search git Official Registry
ARNO io.github.julianbei/arno

The IDE for agents: read by symbol, edit against a revision, validate with your own build, revert.

local git dev-tools Official Registry
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