Book Enhanced Intelligence LLC
com.enhancedint/enhanced-intelligence
Book with Enhanced Intelligence LLC: services, prices and open times. No key needed.
BoringToolsKit
roadtogideon222-byte/boringtoolskit
36 free private calculator tools for Claude. No accounts, no data leaves your session.
Bot Space
fyi.bsp/bot-space
Free, no-login forum, wiki and chat for AI bots: share hard-won fixes, peer validation, topic karma.
BotSupply
io.github.iambrettforbes/botsupply
Free tamper-evident receipts for agents. HMAC chain, confirm-before-pay, wallets, escrow.
BountyVerdict Agent Decision Tools
Mimirs402/bountyverdict
Free selector plus read-only GitHub bounty, agent harness, Actions, flake, and MCP drift decisions.
Boxerbook
mvtk1978/boxerbook-mcp
World professional boxing: schedule, results, boxer cards, rankings, forecasts. Free, no key.
Brainfile
io.brainfile/brainfile
Brainfile memory layer for Claude Code over MCP: free starter files + weekly freshness feed.
Brasspage
com.brasspage/brasspage
Free small business website check, free redesign form link, Tack Board pin link, live numbers
Bridges
link.morningbrief/bridges
FHWA bridge inventory: 624,193 bridges, condition, posting, clearance. 10 tools, free, no key.
Broadcastwell
com.broadcastwell/public
Who five AI engines name in 14 software categories, with a published receipt on each. No key.
Brontide agent arena
live.brontide/mech-arena
THE MECH ARENA BUILT FOR AI AGENTS. HUMANS WELCOME. Pilot mech duels over MCP, free, no sign-in.
BugiaData
lgpoliveira/bugiadata-mcp
Relational locale-aware fake data for Cursor and Claude via MCP (SSE). Free tier at bugiadata.com.
Builders in Fintech
ai.buildersinfintech/fintech-data
Fintech companies, products, investors, funding rounds, news, podcast. Free, keyless, CC BY 4.0.
Bundler
at.uurl/bundler
Bundle multiple URLs into one short link. QR codes, access counters, redirect lookup. Free.
BurnerCheck
dev.workers.mike-tusa.burnercheck/burnercheck
Disposable email checker: disposable, role, free-mail and look-alike flags. List-based, no MX.
Burs-IA Tools
io.github.soyeladice-svg/bursia-tools
Free read-only tools for agents: agent-readiness audit, TLS/DNS/header checks, MCP search, utils.
Business Days & SLA
Vessark/business-days-mcp
Business-day, SLA, cron and recurrence calculations — offline, holiday-aware, no network.
BusyBoard
app.busyboard/mcp
Merged free/busy, find mutual time, propose bookings with human approval. Never event contents.
Buzzradr
buzzradr/mcp
Live AI trend radar: trending AI topics, why-trending signals, daily digests. No API key.
ByJG Open Source Docs
byjg/mcpserver-byjg-docs
Search the ByJG open source documentation: PHP, DevOps, Helm, JavaScript and AI projects.
C'est Chaud à Paris
city.cestchaud/paris
Read-only Paris catalogue: events and dates, places, free things, booking links.
Cabin
com.withcabin/cabin
Privacy-first, cookie-free web analytics. Read stats and manage sites from your AI.
Cairn
dev.workers.notdown-app.cairn/daily-build-streak-accountability-tracker
Log one line each daily run; grow a public agent build-streak, trail page, and badge. No signup.
calc.engineer
engineer.calc/calc
88 free engineering calculators: RF link budgets, LoRa/Meshtastic, PCB, solar, homelab. Keyless.
Calculators
com.calcfleet/calculators
Tested financial & practical calculators as free, no-auth MCP tools for AI agents.
California Bitcoin
org.californiabitcoin/agent-commerce
Bitcoin research for AI agents: free answers, specialist Q&A, verification, evidence, timelines.
California Court Deadlines
com.calcourtdeadlines/deadlines
Computes California state court deadlines and cites the code section behind every date. No API key.
California Slip & Fall Evidence Checker | JSM Injury Firm
io.github.janoliverautomation-stack/caslipandfall-com
Not sure what to do after a slip and fall in California? Use this free evidence checker to find out
Caliper money calculators
com.calipermoney/money-calculators
Net worth percentile by age (Federal Reserve data) and retirement savings calculators. Free.
Camping Australia
au.com.trip-planner/camping-australia
Search Australian campsites, caravan parks and free camps; weather, gear, road trips and booking.
CAN-TAP Verified
morphious33453/can-tap-verified-mcp
Free dofollow backlinks for Canadian businesses. Claim, verify, and track NFC tap analytics.
Canada Payroll
ca.canada-payroll/canada-payroll
Verified 2026 Canadian payroll math: employer total cost, employee take-home, net-to-gross. Free.
Cancersupport
sigaihealth/cancersupport
Search 585+ free cancer support resources across Washington State in 7 languages
Cannabis
rootsbymenda/cannabis-mcp-server
Cannabis compliance: US state testing, INCB, Health Canada, EU precursors. Free.
Cantara wiki
Cantara/wiki
Norwegian open-source community wiki (2,290 articles, 2008-2022) as a signed KCP knowledge web.
Canvs
io.github.voronkovm/canvs
AI-powered diagrams, mind maps, flowcharts on a free unlimited collaborative whiteboard
Captain Legal
legal.captain/captain-legal
Compliant legal documents from your AI assistant: 1,100+ templates, 15 countries, free preview.
Car Repair Cost Estimator
maximmaximovwork2018-gif/carrepaircostestimator-mcp
Car repair cost estimates by make, model and repair type. 31 cost guides, VIN decode. Free.
CarChat Inventory
Carchat-io/mcp
Search live US dealership inventory, get market prices, and send buyer inquiries. Free, no API key.
Cardmind
io.github.nath-abhishek/cardmind-mcp
MTG market data: search 114K+ cards, price signals, AI analysis. Free tier available.
Carragent
com.carragent/carragent
Carragent's AI agents for small businesses, its plans and prices. Read-only, no key.
CaseDaleel
com.casedaleel/uae-legal-info
Read-only UAE legal information: official routes, practical guides, free tools and FAQs.
CaseMagic
io.github.sustany/casemagic
Free US federal court case lookup: status, judge, filings, deadlines. Then watch it for new filings.
Catalog
com.1001locals/catalog
Search & add local tours and experiences (Italy/EU). Operators: first 100 bookings free, then 5%.
Cert Made Easy
com.certmadeeasy/exam-practice
Look up certification exams and practise free exam-style questions with explanations.
CertArc
com.certarc/certarc
Free CISM, CISSP, CISA, AAISM and AAIA practice questions, and read-only access to your study.
CertGuard
dev.workers.mike-tusa.certguard/certguard
Free SSL/TLS certificate checker: expiry, chain trust, hostname match, TLS version, A/B/C/F grade.
CEV-OS Data API
com.cev-os/data
Free macro calendar, market mood, catalysts, release status, macro regime, incident assets, earnings