Free MCP servers · page 242

at.aamio/aamio

Meet an agent you have not met, exchange messages that expire, and prove it happened. No account.

de.abmahnexperte/abmahnung

Received a German Abmahnung (cease and desist letter)? Send it in chat for a free lawyer assessment.

com.acousticsoundpanels/acoustic-sound-panels

Estimate a room's echo, get panel recommendations, and request a Free Room Analysis.

Acuris-GmbH/acuris-mcp

Address validation & geocoding for AI agents: 240+ countries, UK PAF, free US/CA enrichment

com.adcreator-ai/generate-ad-headlines

Turn a product photo into a finished ad image with copy, or get 10 ad headlines. Free, no signup.

space.monon/additive-atlas

Food additive regulations of Japan, the EU and the US, side by side, with sources (free tier).

jp.addresstozip/address-to-zip

日本の住所⇄郵便番号を変換。表記ゆれも吸収。Japan address ⇄ postal code, handles messy input. Free tier, no API key.

ad-vertly/adextract-mcp-server

Search Meta, Google, LinkedIn and TikTok ad libraries with creative analysis. 50 free searches.

com.aeolookup/free-aeo-tools

Free AI crawler, schema, llms.txt and answer-readiness checks for public web pages. No API key.

com.angelscohq/aether

Points AI agents to Agentify (free agent search engine) and AgentDNA (company catalogs for agents).

sobuk2500-max/agent-bay-mcp

Public board of agent questions, attempts and verified results. Read-only, no API key.

basilalshukaili/agentbroker

23 MCP tools: compliance, verification, messaging, booking, US contracts. 15 need no key.

com.flowaiapi/agent-bus

Durable addresses and crash-safe FIFO mailboxes so AI agents message each other, free.

kadopi/my-projects

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

nanocorp-hq/agentarena

Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.

com.opentaskrelay/open-task-relay

Free citation deduplication, JSON checks, agent discovery, shared tasks and evidence review.

gvb9/agent-commons

Free public notebook and mailboxes for AI agents: shared notes, votes, no accounts.

sibi-narendran/common-agent-network

A home for any agent: inbox, public memory, job board, rooms, human help. Free, no key.

site.chatgpt.lanekingsbery.agent-commons/agent-commons

Free citation deduplication, JSON checks, agent discovery, shared tasks and evidence review.

Nutshell2000/agent-data-tools

569 agent tools: chain data, prices, sanctions, web, PDF. 25 free calls, then from $0.002.

dev.workers.pathwren.www/agent-discovery-doctor

{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"whoami","arguments":{}}} free no key

com.agentdistributionservices/agent-distribution

Free distribution preflight: channel candidates and permissions. No paid orders or publishing.

ChuXo/einstein-claude-plugin

AI price forecasts, whale flows, market sentiment and prediction signals. 18 tools free, no account.

dev.workers.agent-forum-worker.agent-forum/agent-forum

Free: ed25519 hash timestamps, randomness tests, lottery data. Open falsification challenge.

work.autonet/agent-health

Free owned-agent uptime monitoring, DNS domain proof, signed alerts and opt-in endpoint checks.

io.theagentindex/agent-index

Free open dataset of compliance, security and risk AI agents and audit firms. Read-only search.

gtdfg6wgg8-ui/agent-planets-skill

A galaxy where every AI agent owns a planet: claim free, terraform, build, visit, trade.

com.agent-preflight/agent-preflight

Budgeted agent preflight: allow|block|reuse|defer|advise. Never executes destination tools. Free MCP

com.nclexdrill/agent-toolbox

13 free utility tools for AI agents: web text, markdown, hashing, IDs, dates, units, JSON.

com.outliyr/agent-tools

Run the Energy Leak Quiz, match biohacking gear, and build a longevity stack. Free, no API key.

why-see/agent-tools-mcp

32 free MCP tools for data validation, text optimization, and synthetic test data.

io.agentweather/agent-weather

Open-source intelligence for AI agents: public readings, each with its source and timestamp.

catalyst-labs-dev/catalyst-labs-mcp

Search + read the web for $0.002/page; failed URLs free; per-URL errors never fail the call.

lol.wukong.world/agent-world

Open town for AI agents: visit_town & guest_say with no sign-up, then join_request (no install).

foomworks/agent-web

URL to clean markdown for LLMs: a polite, robots.txt-respecting web reader. Free, no API key

agentbuilt/agentbuilt-mcp

Free AI-readiness audit of any URL: AI crawler rules, JS-free text, JSON-LD, llms.txt. Tool catalog.

io.github.Ockram4444/agentcompute

Free experimental GPU tools: text generation, images and audio transcription. Shared quotas; no SLA.

GlassCaseOfEmotion/agentgauge-skill

Scan any website's AI readiness: AI search visibility and AI agent usability. Free, no auth.

com.agentgid/agentgid

Live data on AI agents, APIs and models: prices, free tiers, limits, outages, real-world usage.

f-tiger/sellSomething

7 free tools: MCP health scans, AI-readiness scores, llms.txt generator, glossary, indexes.

kandikandikandi/behavioral-audit-mcp

Checks what a support agent knew but did not say against its policies. Free tier, no login.

AgenticFinanceGraph/agentic-finance-graph-mcp

Ledger of AI-agent money on Base: ranked agents, payments, detections, free checks before you pay

nl.agenticweb/dutch-data

Dutch address dossier, vehicle, building, elevation, holidays, demographics. Free samples first.

alexmensak/agentmade-print-on-demand

Print on demand for AI agents. No sign-up. Picture, words or logo on a tee, hoodie or tote.

com.cazimedia.agentnative/data-exchange

Normalized official data with provenance, aggregations, insights, free samples and agent access.

agent-gigmole/agentoolrank-mcp

Search and compare open-source AI agent tools ranked by live GitHub activity, with compare prompts.

app.vercel.agentready-rho/agentready

Scan any website or MCP server for agent readiness: 0-100 score, a fix per failing check. Free.

com.agentscouthq/directory

Read-only search over 2,065+ AI agent tools and 276 MCP servers. Free, no sign-up needed.