Give Claude, ChatGPT or Cursor the whole outbound loop: find leads, verify, enrich, send, read replies. One key, one server, no dashboard.
300 free credits, about 60 verified emails · No card · Credits never expireOne connection. Same agent. A lot more it can do.
Not a wrapper around one tool's API. One MCP server that finds the people, verifies them, sends from warmed inboxes and brings the replies back to your agent. Your lists come with you as CSVs. Nothing sends until you approve it.
Domains and mailboxes stood up on request, warmup included, rotation built in. Quote first, buy on approval.
setup_sendingEvery reply, unsubscribe and bounce lands on the suppression list and is checked again right before every send. First emails carry a short opt-out P.S., and people in countries that need consent are flagged before launch.
built inReplies come back as data your agent can read, sort and answer. No inbox UI to log into.
get_replies · reply_to_threadGet your key, paste one block into the tool you already use, type the first prompt.
1 · Settings → Connectors → Add custom connector
Name: Layrcake URL: https://mcp.layrcake.dev/mcp
2 · Choose Add, then approve access when Claude sends you to Layrcake
Sign in with your Layrcake account. No key to paste, no header to set.
3 · First prompt
Find 50 healthcare executives in the US, enrich the three most promising into verified emails, and check those emails for deliverability. Summarize the usable leads and total credits spent. Do not create or launch a campaign.
1 · Settings → Security and login → Developer mode on
The switch lives under Security, not Apps.
2 · Plugins → + → Connection
Name: Layrcake URL: https://mcp.layrcake.dev/mcp Choose Create, then approve access when ChatGPT sends you to Layrcake.
3 · In a new chat, open the tools menu and add Layrcake
Paid plans, web. ChatGPT applies its own filters to connected tools and can refuse outreach steps; Codex runs the same tools without them.
1 · Paste into .cursor/mcp.json (or ~/.cursor/mcp.json for every project)
{
"mcpServers": {
"layrcake": {
"url": "https://mcp.layrcake.dev/mcp",
"headers": { "Authorization": "Bearer YOUR_LAYRCAKE_API_KEY" }
}
}
}2 · First prompt
Confirm the layrcake tools are available, then find 30 UK fintechs hiring SDRs and the head of sales at each.
1 · One command in your terminal
claude mcp add --transport http layrcake https://mcp.layrcake.dev/mcp \ --header "Authorization: Bearer YOUR_LAYRCAKE_API_KEY"
2 · Check it
claude mcp list
1 · Append to ~/.codex/config.toml, then start a new session
[mcp_servers.layrcake]
url = "https://mcp.layrcake.dev/mcp"
http_headers = { "Authorization" = "Bearer YOUR_LAYRCAKE_API_KEY" }Two values. Streamable HTTP. OAuth if your client supports it, otherwise the header.
URL: https://mcp.layrcake.dev/mcp Header: Authorization: Bearer YOUR_LAYRCAKE_API_KEY
REST, if you would rather
POST https://api.layrcake.dev/v1/find_leads Authorization: Bearer YOUR_LAYRCAKE_API_KEY OpenAPI: https://api.layrcake.dev/openapi.json
Every one of these runs today. Copy it, change the names and numbers, hand it to your agent.
Connect once, ask in a sentence, approve what goes out.
Find the right companies. Describe them, name one you love, start from who's hiring, or check their website for anything.
find_companies · check_companiesFind the right people at each, by title, seniority, or "whoever owns marketing".
find_leadsWork email, mobile and profile, every address verified before you ever send, catch-alls included.
enrich · verify_emailWho raised, who's hiring, who changed jobs, what they've posted, and sourced research on any account.
find_intent · find_posts · research_companyWarmed inboxes, sequences, replies read and answered. Nothing sends until you approve.
setup_sending · launch_campaign · reply_to_threadBuilt in, on every call
The list and the first email, before anything goes out.
Anyone who says stop is kept out of every future campaign. A spam complaint keeps them out for everyone.
Set a monthly limit on each agent’s key.
What each agent did, and what it cost.
Same prompt. Two very different answers.
That’s the difference one connection makes.
No. Finding, enriching and verifying run on their own. Launching a campaign, replying to a thread and buying sending capacity wait for your approval, every time. No key and no setting can skip that step.
About 60 verified work emails, or 50 company matches, or 300 verifications. A credit is one cent. Misses cost nothing, so you only pay for people who exist.
No. Ask for sending capacity and warmed domains and mailboxes are provisioned for you: 1,500 credits per domain per year, 750 credits per mailbox per month, quoted before anything is bought.
From a waterfall of specialist data providers, routed per request and verified before you see a result. Layrcake is a UK company; the data processing addendum is at layrcake.dev/dpa and suppression is enforced before every send. The first email of every sequence carries a short opt-out P.S., and recipients in countries where business email needs consent are flagged before launch, so you choose whether to send to them.
You enter your email and type the 6-digit code we send you, no card. The setup page then connects your tool: Claude and ChatGPT sign in directly, and the others get a key pasted into their setup for you. Type one of the prompts on this page and the first result is back inside two minutes.
Every account begins with 300 free credits — no card, full API, every verb. Top up as you go: 1 credit = $0.01, spent only on outcomes. Credits never expire.
$48 / month for 10 agents · avg $4.80 per agent
plus what you use · 1¢ per credit · misses always free
300 free credits on signup — no card, no plan, nothing to pick.
Need to reach more people? Scale Layrcake around your volume, workflow and team.
The right companies, people, details and signals, all available through one API key. Ready for your AI agent the moment you paste it. Nothing sends until you say so. Free to start, then pay as you go.
mcp url · https://mcp.layrcake.dev/mcp 300 free credits · No card required