lemlist MCP server compared with the Outreach2day MCP server
lemlist's MCP server brings prospecting, enrichment, campaigns, the inbox and deliverability tools into your assistant. Ours buys and sets up domains and mailboxes, runs warm-up and campaigns.
- Warm-up and sending included
- $2.50 a mailbox, 12 minimum
- Month-to-month billing
Main job of each server
- lemlist MCP
- You need prospects and enrichment from the chat
- Outreach2day MCP
- You need sending domains and mailboxes bought, set up and warmed from the chat
What the lemlist MCP server does
lemlist runs an MCP server at app.lemlist.com/mcp with OAuth or an X-API-Key header. Its tools cover a 450M+ B2B database, enrichment, campaigns, CRM data, the inbox including replies with confirmation, and a deliverability group with domains, DNS, mailboxes, warm-up and inbox placement. The Outreach2day MCP server covers domains, mailboxes, warm-up and campaigns; it has no lead database and no export to lemlist.
lemlist MCP at a glance
From lemlist's own pages; each line links its source.
- Endpoint
- https://app.lemlist.com/mcp over HTTP source (opens the vendor's page in a new tab)
- Sign-in
- OAuth, recommended (access token 1 hour, refresh 30 days), or an API key in the X-API-Key header source (opens the vendor's page in a new tab)
- Clients named
- Claude Desktop, Claude Code and Cursor in the setup docs; Claude and ChatGPT in the help center source (opens the vendor's page in a new tab)
- Tool groups
- core, builder, prospecting, crm, engagement, deliverability (domains, DNS, mailboxes, warm-up, inbox placement), insights; a bucket filters what the server advertises source (opens the vendor's page in a new tab)
- Credits
- Some operations use credits; the assistant warns first source (opens the vendor's page in a new tab)
- Confirmations
- Tools that send, delete, spend credits or change campaigns ask for confirmation source (opens the vendor's page in a new tab)
Capabilities side by side
What each server's tools cover, job by job. Our column links the page with the tool list.
| Job | lemlist MCP | Outreach2day MCP |
|---|---|---|
| Buy domains | Buy domainsNot includedNot in the MCP docs; domain health and DNS checks are source (opens the vendor's page in a new tab) | Buy domainsIncludedcheck_domains, then a server-priced quote and a Stripe link you pay; domains you own connect free details |
| Mailboxes | MailboxesPartly, or at extra costLists, provisions and updates mailboxes; the docs do not say whether that includes buying source (opens the vendor's page in a new tab) | MailboxesIncludedCreated on your domains after payment, SMTP/IMAP, SPF, DKIM and DMARC set; no Google or Microsoft option details |
| Warm-up | Warm-upIncludedThe deliverability tool group covers warm-up and inbox placement source (opens the vendor's page in a new tab) | Warm-upIncludedstart_warmup and get_warmup_status: inbox rate, spam rate and ready date per mailbox details |
| Campaigns | CampaignsIncludedCreate, update, start and pause source (opens the vendor's page in a new tab) | CampaignsIncludedDraft, steps, CSV import, preflight, launch after your yes, pause details |
| Leads | LeadsIncludedSearch a 450M+ B2B database, enrich and verify emails source (opens the vendor's page in a new tab) | LeadsNot includedNo lead search or enrichment; contacts come from your CSV, up to 10,000 rows per import details |
| Replies | RepliesIncludedSend a message or reply, with confirmation source (opens the vendor's page in a new tab) | RepliesPartly, or at extra costReads replies with intent and campaign; no tool sends a reply details |
| Analytics | AnalyticsIncludedTeam statistics and performance metrics source (opens the vendor's page in a new tab) | AnalyticsPartly, or at extra costSent, replies and bounces per campaign; warm-up inbox and spam rate per mailbox details |
| Sign-in | Sign-inIncludedOAuth or API key header source (opens the vendor's page in a new tab) | Sign-inIncludedOAuth sign-in in the client, Streamable HTTP; API key only for CI and headless setups details |
lemlist facts checked on 8 October 2026 against the linked pages. Where those pages say nothing, the cell says so.
Where each one fits
lemlist MCP fits when
- You need prospects and enrichment from the chat
- You run multichannel campaigns in lemlist and want the assistant to answer replies
Outreach2day MCP fits when
- You need sending domains and mailboxes bought, set up and warmed from the chat
- You want per-mailbox pricing at $2.50 a month with warm-up and sending included
- You send the campaign from the mailboxes you set up with us
Using lemlist MCP and Outreach2day MCP together
Both servers can sit in one assistant. A typical split: lemlist's tools find and enrich the prospects; the assistant hands them to our import_campaign_contacts as CSV text and launches from Outreach2day mailboxes after warm-up.
A common split: Outreach2day for domains, mailboxes and warm-up, lemlist for prospects and sequences. Our server has no export to lemlist, so you add the mailboxes there yourself: the Outreach2day app exports a CSV with each mailbox's SMTP/IMAP logins.
The Outreach2day MCP server, job by job
Tools, an example session, prompts per assistant and the limits for each job.
- Outreach2day MCP serverServer URL, setup per client, the full tool list
- Outbound end to endDomains, mailboxes, warm-up, campaign and replies from one assistant
- Domains and mailboxesCheck names, quote, pay on Stripe and track setup; or connect your own domains
- Warm-upStart warm-up and get inbox rate, spam rate and ready date per mailbox
- CampaignsDraft the sequence, import contacts, launch, read stats and replies
Questions
Does lemlist have an official MCP server?
Yes, at https://app.lemlist.com/mcp, with OAuth sign-in or an API key in the X-API-Key header.
Can the lemlist MCP server buy domains or mailboxes?
lemlist's help center lists tools to list, provision and update mailboxes and to check domain health and DNS. It does not say they buy domains. The Outreach2day server quotes domains and mailboxes and returns a Stripe link you pay.
Can I export Outreach2day mailboxes to lemlist from the assistant?
No. Our export tool supports Instantly and Smartlead. Add the mailboxes to lemlist yourself with the SMTP/IMAP logins from the CSV export in the Outreach2day app.
Which server finds leads?
lemlist's: it searches a 450M+ B2B database and enriches contacts. Ours has no lead search; it imports the contacts you give it as CSV.
More comparisons
- Instantly MCP vs Outreach2day MCPInstantly's full V2 API as tools, next to our infrastructure server; export between them
- Smartlead MCP vs Outreach2day MCPSmartlead's campaign and diagnostics server, next to our infrastructure server; export between them
- Apollo MCP vs Outreach2day MCPApollo's prospecting and sequences server, next to our infrastructure server
- All providers, scoredSeven criteria, published weights, sources
- MCP servers for cold emailBlog
Deliverability call
Talk to our deliverability team
Book a call with the people who run our mailbox infrastructure. We look at your current setup and tell you what to change.
- Review your domains, DNS records and current inbox placement
- Size the setup: domains, mailboxes per domain and daily volume per mailbox
- Plan warm-up and the move from your current provider or sequencer
Free call
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Open the booking page insteadSources
lemlist pages checked on 8 October 2026. Our tools: the Outreach2day MCP server and its public README.
First cold emails on day 14, full volume on day 21
Add domains, create mailboxes and turn on warm-up. You see every mailbox's warm-up numbers from day one.