Finds local business leads from Google Maps as a paid alternative to the bundled free open-data business dataset, returning results per search at the provider's per-result price.
Pulls open job postings from Greenhouse job boards, usable as lead sources and as signals for detecting hiring activity at companies.
Pushes leads and agent-drafted messages to HubSpot as a sending/destination integration; drafts are prepared by agents and nothing is sent automatically.
Enriches company records with open data from Wikidata, alongside other free sources such as SEC filings.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Free Clay find 25 marketing agencies in Chicago with verified work emails"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
A Clay-style lead workspace you own. Find leads, enrich them in tables with waterfalls, keep People and Companies databases, run AI agents, automate with workflows, watch signals, and drive it all from Claude through MCP. It runs on your own Cloudflare account for $0 a month. You pay providers directly, at their price, only when you run them; plenty works for free.
Not affiliated with Clay Labs. "Clay" is their name; this is an independent, open-source rebuild (MIT). Clay's prices below are Clay's own figures, read in its app on 2026-09-27/28.
Clay is two products: software and data. Its Launch plan is $185 a month, the HTTP API column needs Growth at $495 a month, and data costs credits on top ($0.05 each on Launch). Free Clay rebuilds the software and reaches the data at the provider's price:
Job | Clay (Clay's figures) | Free Clay |
The software | $185 to $495 a month | $0 (Cloudflare free plan) |
Local businesses | $0.05 per Google Maps result | $0: 15.5M US businesses from open data |
Company enrichment | $0.025 a row | ~$0.0019 through treg (measured) |
Work email waterfall | ~$0.055 a row | ~$0.0048 a hit through treg (treg's price), verified |
AI column or agent | 1 to 45 credits a row | $0 on Groq's free tier, or any model at its token price |
Every Clay feature and its Free Clay equivalent: docs/FEATURES.md.
Related MCP server: mcp-saas-connector
Find leads: local businesses on a map (free open data, or Google Maps), people by title, company and place (through treg), companies (SEC, Wikidata), open jobs (Greenhouse, Lever, Ashby), lookalike companies (Exa).
Tables: 29 enrichment functions (9 free), waterfalls with validation, AI and Agent columns (a prompt written for you from one sentence), Message columns (subject and body with spintax, clean variables, AI and if/then snippets), formulas, any HTTP API, "Try on 5 rows" before saving, a budget cap on every run and a ledger of every call. Nine ready-made templates.
Audiences: People and Companies databases, deduplicated, with where each value came from, and segments.
Agents: research, score and draft on your own model key, with web tools, treg tools and any MCP server; a step limit and budget on every run.
Workflows: a drag-and-drop canvas: new rows, new segment members, schedules, webhooks or signals start steps like functions, agents, conditions, delays and "save to People".
Signals: new job posts, website changes, news, SEC filings (free), job changes (treg).
Send: HubSpot, Instantly, Smartlead, any webhook. Drafts only from agents; nothing sends by itself.
MCP server, REST API and CLI: 21 MCP tools for Claude, ChatGPT and Cursor; /api/v1 with
tokens; bin/free-clay.mjs.
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More in docs/screenshots, light, dark and phone.
You need Node.js 22+, git and a free Cloudflare account. Pick one way.
A. One command (asks as it goes):
git clone https://github.com/mertozcetinwd-lab/free-clay.git
cd free-clay
npm install
npm run setupB. With your AI coding agent (Claude Code, Cursor, Codex). Open it in an empty folder and paste:
Clone https://github.com/mertozcetinwd-lab/free-clay, read its AGENTS.md, and set Free Clay up on my Cloudflare account. Hand me the terminal for the Cloudflare login and for every key. Never ask me to paste a key into the chat.
C. By hand: every command is in docs/SETUP.md.
Two things only you can do: sign in to Cloudflare when a browser opens, and type each key into
wrangler's own prompt (npx wrangler secret put NAME) so it goes straight to Cloudflare. Which keys,
where to get them and what they cost: docs/KEYS.md. None is required; start with
Groq (free) and treg (one token, provider prices).
Try it first without Cloudflare: npm run preview, then http://localhost:8787 (password
preview). Every provider is faked there, so nothing is called and nothing costs money.
Every step, what you do and what the script does, updating later | |
Each key: what it unlocks, cost, link, command | |
The free data (15.5M businesses, SEC, Wikidata, job boards) and its licences | |
Connect Claude, Cursor or ChatGPT; the 21 tools | |
Every Clay feature, and what Free Clay does instead | |
One small workflow run in Clay and in Free Clay: what each returned and what it cost | |
Messages you might see, and the fix | |
Instructions for AI coding agents working on this repo | |
Build it from scratch with one prompt |
No LinkedIn scraping or LinkedIn data: it breaks LinkedIn's terms. LinkedIn fields a provider returns are dropped.
No mailbox probing from the Worker: verification goes to a provider (treg or Hunter).
No sending by itself: agents draft, your sequencer or CRM sends under your name. CAN-SPAM (US) and GDPR (EU) duties sit with the sender.
No resold database: the data is open data you can check, your own imports, and the providers you choose to pay.
One Cloudflare Worker and one D1 database, plain JavaScript modules, no framework, no build step, no runtime dependencies. The free plan's limits (50 outbound requests and 50 database queries per invocation) are why every fetch goes through a queue that plans within them. Leaflet (BSD-2) draws the map and Drawflow (MIT) the workflow canvas, both vendored with their licences.
npm test # 200+ tests, no network
npm run mutate # plants real bugs one at a time; the tests must catch every oneMIT licensed. Built by Mert Ozcetin: build it, don't rent it. Data: Overture Maps Foundation, Overture Places (CDLA Permissive 2.0).
This server cannot be deployed
Agent-native MCP server over 49M+ US public and government records, privacy-first, always current.
Marketo MCP server for AI. 130 tools to operate Marketo from Claude, Cursor, or ChatGPT.
Remote streamable-HTTP MCP server running on a single Cloudflare Worker. Your assistant gets live Airbnb, Amazon, Booking.com, Google Flights, Maps and Reddit data, social search on X, Instagram and TikTok, the Meta Ad Library, and image/video generation without any keys. Connect your own accounts to let it send WhatsApp or Telegram messages, work an IMAP inbox, manage Meta Ads campaigns and publish to X and LinkedIn. OAuth 2.1 with PKCE; stored credentials are AES-256-GCM encrypted.
API-first CRM for LLMs - contacts, companies, deals and activities over a native MCP server.
