FastMCP server for Apollo MCP server

Apollo.io MCP Server

<!-- mycelium-badges:start -->

<!-- mycelium-badges:end -->

FastMCP server exposing the full operational surface of the Apollo.io REST API to Claude Code. 27 tools covering sequences, campaign health, mailbox warmup, people/org enrichment, CRM contacts, tasks, labels, credit tracking, AND programmatic template/sequence/mailbox-cap editing with audit logging.

Most existing Apollo MCPs only expose people search and enrichment. This one is built for teams running outbound at scale — daily health digests, sequence management, mailbox deliverability monitoring, programmatic contact enrollment, and end-to-end sequence authoring without touching the Apollo UI.

Quick reference

apollo_campaign_health                — daily digest (start here)
apollo_messages_search days_back=1    — raw send/open/reply/bounce log
apollo_mailbox_warmup                 — per-mailbox deliverability state
apollo_sequences_list                 — all sequences + labels + stats
apollo_sequence_add_contacts ...      — enroll contacts into a sequence
apollo_template_update ...            — update template body + subject (with audit log)
apollo_sequence_create ...            — author a new sequence end-to-end
apollo_step_create ...                — add a step + template to a sequence
apollo_mailbox_update_cap ...         — change daily send cap
apollo_credits_remaining              — monthly credit budget check
apollo_health                         — self-check (also probes master key)

Tool inventory (27)

Campaign health

• apollocampaignhealth(days_back=1) — digest across all sequences + mailboxes
• apollomailboxwarmup() — per-mailbox warmup status and daily limits
• apollosequenceget(sequence_id) — one-sequence deep-dive

Sequences

• apollosequenceslist() — list all sequences with stats
• apollosequenceaddcontacts(sequenceid, contactids, sendemailfromemailaccountid?)
• apollosequenceremovecontacts(sequenceid, contact_ids)
• apollosequencesetactive(sequenceid, active) — activate or pause

Messages / analytics

• apollomessagessearch(daysback, sequenceids?, stats?, perpage, maxpages)

People / orgs

• apollopeoplesearch(...) — free (no credit burn)
• apollopersonenrich(...) — 1 credit per revealed email
• apollobulkpersonenrich(people, revealpersonal_emails?) — up to 10/call
• apolloorgsearch(...)
• apolloorgenrich(domain)
• apolloorgjobpostings(organizationid)

CRM

• apollocontactssearch(...)
• apollocontactcreate(...)
• apollocontactupdate(contact_id, fields)
• apollocontactstages()

Tasks / labels / credits

• apollotaskcreate(...)
• apollolabelslist()
• apollolabelcreate(name)
• apollocreditsremaining()

Shortened. The full README is on GitHub.