Apollo MCP server compared with the Outreach2day MCP server
Apollo's MCP server searches and enriches its B2B database, manages Apollo sequences and sends one-off emails. Ours buys and sets up the domains and mailboxes you send from, warms them up and runs campaigns.
- Warm-up and sending included
- $2.50 a mailbox, 12 minimum
- Month-to-month billing
Main job of each server
- Apollo MCP
- You need prospects: people and company search with enrichment
- Outreach2day MCP
- You need the sending side: domains, mailboxes, DNS and warm-up
What the Apollo MCP server does
Apollo.io runs an MCP server at mcp.apollo.io/mcp with OAuth sign-in, or a master API key for headless use, on every Apollo plan. Its 40+ tools search people and companies, enrich them, manage contacts, lists and sequences, send one-off emails and pull analytics. The Outreach2day MCP server buys and sets up domains and mailboxes, warms them and runs campaigns; it has no prospect database.
Apollo MCP at a glance
From Apollo's own pages; each line links its source.
- Endpoint
- https://mcp.apollo.io/mcp, Streamable HTTP source (opens the vendor's page in a new tab)
- Sign-in
- OAuth 2.0 in the browser; for clients without a browser, a master API key in the X-Api-Key header source (opens the vendor's page in a new tab)
- Price
- Any Apollo plan, free included; no separate MCP subscription. Free accounts on a personal email cannot use search and enrichment source (opens the vendor's page in a new tab)
- Clients named
- Claude, ChatGPT and Perplexity natively; Claude Code, Cursor and VS Code with Copilot through the plugin source (opens the vendor's page in a new tab)
- Tools
- 40+ tools: search, enrichment, contacts, accounts, sequences, lists, tasks, one-off emails, analytics, import and export source (opens the vendor's page in a new tab)
- Database
- 240M+ contacts and 30M+ companies, per the product page 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 | Apollo MCP | Outreach2day MCP |
|---|---|---|
| Buy domains | Buy domainsNot includedNot in Apollo's MCP docs 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 connected email accounts 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-upNot includedNot in Apollo's MCP docs 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 | CampaignsIncludedSearches and manages sequences, adds and removes contacts; enrolment may start sending source (opens the vendor's page in a new tab) | CampaignsIncludedDraft, steps, CSV import, preflight, launch after your yes, pause details |
| Leads | LeadsIncludedPeople and company search, single and bulk enrichment; enrichment uses credits 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 | RepliesPartly, or at extra costSends one-off emails; replying inside a thread is not described 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 | AnalyticsIncludedSales analytics reports; opens, clicks and replies per the product page 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 a master 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 |
| Price of the server | Price of the serverIncludedOn every Apollo plan, free included source (opens the vendor's page in a new tab) | Price of the serverIncludedIncluded with the account; $2.50 per mailbox a month, 12 minimum details |
Apollo facts checked on 8 October 2026 against the linked pages. Where those pages say nothing, the cell says so.
Where each one fits
Apollo MCP fits when
- You need prospects: people and company search with enrichment
- Your sequences already run in Apollo
Outreach2day MCP fits when
- You need the sending side: domains, mailboxes, DNS and warm-up
- You want campaigns launched and tracked from mailboxes set up for cold email
Using Apollo MCP and Outreach2day MCP together
Connect both to one assistant: Apollo finds and enriches the people; the assistant passes them to our import_campaign_contacts as CSV text and launches from your Outreach2day mailboxes after warm-up.
A common split: Outreach2day for domains, mailboxes and warm-up, Apollo for prospects and sequences. Our server has no export to Apollo, 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 Apollo.io have an official MCP server?
Yes, at https://mcp.apollo.io/mcp with OAuth sign-in, or a master API key in the X-Api-Key header for headless clients. Apollo says it works on any plan with no separate MCP subscription; free accounts on a personal email cannot use search and enrichment.
Can Apollo's MCP server set up mailboxes or warm-up?
It lists connected email accounts. Apollo's MCP docs describe nothing for buying domains, creating mailboxes or warm-up. The Outreach2day server does those.
Can the assistant move Apollo contacts into an Outreach2day campaign?
Yes, as CSV: the assistant takes the contacts Apollo returns and imports them with import_campaign_contacts, up to 10,000 rows per import. Columns such as first name and company become variables.
Can I export Outreach2day mailboxes to Apollo?
Our export tool supports Instantly and Smartlead. For Apollo, the Outreach2day app exports a CSV with each mailbox's SMTP/IMAP logins to add there.
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
- lemlist MCP vs Outreach2day MCPlemlist's prospecting, campaign and inbox 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
Apollo 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.