MCP Server Directory

pipeworx-io/mcp-wikiviews

Wikiviews MCP — wraps the Wikimedia Pageviews API (free, no auth)…

vystartasv/wwa-mcp

14 MCP tools: facts, pitfalls, skills, handoff protocols, trust scores, identity verification.

pipeworx-io/mcp-xkcd

XKCD MCP — wraps xkcd.com JSON API (free, no auth)

ai-hub-open/yandex-direct-mcp

MCP server for Yandex Direct API: campaigns, ads, keywords, bids, reports. Click.ru or OAuth.

AddyCuber/A2K2-PS1

Ybe Check – security and compliance orchestrator for AI-generated repositories.

YottaMeta/yotta-verify-mcp

Pre-install security scanner for AI agent skills (local stdio MCP). Offline static scan; no upload.

pipeworx-io/mcp-zendesk

Zendesk MCP Pack — tickets, users, organizations via OAuth.

zeroclaw-labs/zeroclaw-mcp-distribution

Configure and manage authorized ZeroClaw installations through a local MCP server.

pipeworx-io/mcp-zippopotam

Zippopotam MCP — wraps Zippopotam.us ZIP/postal code API (free, no auth)

kadopi/my-projects

Free no-storage MCP that checks A2A Agent Card connection readiness for authorized targets.

naief9961-tech/ai-growth-engine

Free MCP, API auth, webhook and schema diagnostics with bounded checks and safe quote routing.

ai.rxmanager/mcp

Live US drug acquisition costs (CMS NADAC) for AI assistants. Free, no auth, weekly data.

uk.aios-system/public-discovery

Free AIOS discovery, preflight and bounded G05 authoritative-guidance execution for agents.

ai.aislabs/cve

Daily CVE priorities ranked by real exploitation (KEV+EPSS) for AI agents; free teaser, paid full

coderifts/api-governance

Signed, offline-verifiable contract-change authorization. Only a granted change can proceed.

com.api402x/apix402

Live onchain governance, vesting, oracle and Safe authority checks. Free samples over MCP.

io.github.appvantagelabs2-a11y/barcode

Decode, render, validate barcodes: QR, DataMatrix, EAN, UPC, PDF417. All tools free, no auth.

thgun2yerhed/agent-services-v2

Free onboarding tool providing authentic live transaction analysis on Base mainnet.

fabwaseem/benchline

Open-source developer, PDF, image, SEO and security tools over a stateless HTTP MCP server. No key.

FDSchaefer/bessPerformance

Australian NEM battery (BESS) data for AI agents: revenue, dispatch, FCAS, events. Free, no auth.

io.github.mtardy90-sudo/bootlace-ai-spendmap

Free-trial AI fleet spend meter. 100 calls or 14 days. No auth.

com.bugherd/mcp

Official BugHerd MCP server. Sign in with OAuth, no API key needed.

com.calcfleet/calculators

Tested financial & practical calculators as free, no-auth MCP tools for AI agents.

net.checkmyvin/checkmyvin

Decode US-market VINs and list NHTSA recall campaigns for the make, model and year. Free, no auth.

com.vigotime/tools

Free German workforce calculators (bridge days, net working time, staffing/PeBeM) - no auth needed.

ai.contentsweep/agent-access

Prepaid copyright investigation and authorized enforcement, with a free agent sandbox.

crashedfox/cosmik-mcp

Live space data for AI agents - rocket launches, ISS passes, launch news. Free, no auth.

dev.workers.cybermax-tools.cybermax/cybermax-data

Free US data lookups: ZIP demographics, CISA KEV/EPSS CVEs, domain rank, county spending, recalls.

io.github.appvantagelabs2-a11y/czid

Czech ARES company registry: VAT, insolvency, RÚIAN addresses, IČO/DIČ checks. All free, no auth.

io.github.Reztek-creator/data-agent-foundry

Free catalogue; paid historical software/security evidence. No current-risk assessment.

com.saasdossier/evidence-ledger

Read-only MCP: free OpenAI security evidence ledger (55 fields) + SaaSDossier release register.

pipeworx-io/mcp-fda

FDA MCP — US Food and Drug Administration public API (free, no auth)

sean0007/free-agent-tools

21 free no-auth tools: pitch roast, Kyushu discount, Japan visa fee, luggage, tax-free.

BryceBin/freeqrly

Free QR code generation via MCP: no-key static codes plus authenticated dynamic codes.

pipeworx-io/mcp-fbiwanted

FBI Wanted MCP — FBI Wanted public API (free, no auth)

news.geotone/geotone

Live global news signals: ranked wire, story timelines, coverage volume/tone/surges. Free, no auth.

siddharthsinghal/uk-talent-visa

UK Global Talent Visa handbook, endorser criteria, cost calculator, draft scoring. Free, no auth.

pipeworx-io/mcp-govtrack

GovTrack MCP — federal US Congress data (free, no auth)

dev.workers.cybermax-tools.cybermax/haulroll-api

FMCSA carrier vetting API + MCP: authority, insurance, OOS. Keys $19/mo; 50 free calls/day.

so.kadent/kadent-scan

Free, read-only security scanner for remote MCP servers, before you connect them.

ashadow07/karmadue

Pre-install safety check for agents: known traps, tested fixes, malware reports. No account.

dev.workers.cybermax-tools.cybermax/kevscope-api

CVE patch-priority API + MCP: CISA KEV, EPSS, CVSS, SSVC. Keys $19/mo; 200 free calls/day.

dev.workers.cybermax-tools.cybermax/kevscope-chatgpt

Is a CVE exploited? CISA KEV, FIRST EPSS, CVSS and SSVC with a patch-first verdict. Free, no key.

ai.talmbout.leviathan/community

Free, open agent conversations and critique. Public reads; authorized keyless guest posting.

dev.workers.cybermax-tools.cybermax/linkheft-api

Domain authority API + MCP: 0-100 score, rank, trend, 50/call. $19/mo; 1,000 free lookups/day.

watch.magento/magento-watch

Magento Open Source, Adobe Commerce and Mage-OS releases, EOL, requirements, CVEs and patches

app.doorbase/market-data

US rental market data by zip: rent, cap rates, vacancy, hazard risk, rent trends. Free, no auth.

com.melvea/local-discovery

Citation-backed honey producer discovery by place or varietal. Free, no auth.