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Apollo

The AI sales platform for smarter, faster revenue growth

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activation/deliverydata/enrichmentsignals/intentorchestration/agent runtime

Core capabilities

Vendor's own claim
  • B2B contact and company database (240M+ contacts, 30M+ companies) with search and advanced filtering
  • Data enrichment and cleansing for existing CRM records, including bulk enrichment
  • AI-powered multichannel outreach sequences (email, calls, tasks) with deliverability guardrails
  • Anonymous website visitor identification and real-time form enrichment
  • Pipeline and deal management with conversation intelligence and AI call summaries
  • Apollo API (REST, OpenAPI 3.1 spec) and an Apollo MCP server for AI-agent access
  • CRM integrations (Salesforce, HubSpot) and an official CLI / n8n node

API & agent surface

From official docs
Authentication
API key (header) for direct Apollo users; OAuth 2.0 for partner/mutual-customer integrations and for the MCP server
Rate limits
Enforced per-minute/hour/day simultaneously, varying by plan. Enrichment endpoints: Free 50/min, 200/hr, 600/day; Basic/Organization/Professional 1,000/min with no hourly/daily cap. Other endpoints: Basic/Organization 200/min, 400/hr, 2,000/day; Professional 200/min (or custom), 600/hr, 6,000/day (or custom).
Notable endpoints
  • People search and enrichment
  • Company/organization search and enrichment
  • Bulk people enrichment
  • Account, contact, and deal management
  • Sequences and outreach (emails, calls, tasks)
  • Analytics and reporting
  • auth/health (API key test endpoint)
Machine-readable spec
OpenAPI spec retrieved

Official skills & repos

From official docs

Published by the vendor themselves — not community forks.

From the vendor's channel

We Used This 4-Step Apollo Sequence to Generate $10M+ PipelineApollo

Pricing

From official docs
PlanPriceIncludedNotable
Free Plan$0Basic access to sales engagement tools, Limited contact database access
Basic Plan$49.00/mo per userBasic sales intelligence tools, Contact database access, CRM integrations
Professional Plan$99.00/mo per userAdvanced sales automation, Engagement tracking, AI-driven insights
Enterprise PlanContact for pricingFully customizable sales intelligence platform, Dedicated support, Advanced analytics

Checked 2026-07-30 against their pricing page. Vendors change pricing without notice.

What is Apollo

Vendor's own claim

Apollo is a sales intelligence and engagement platform, founded in 2015 by Tim Zheng and Ray Li, that positions itself as an all-in-one replacement for separate prospecting-data, email-sequencing, and sales-engagement tools. It claims 40,000+ paying customers and roughly 1 million sales professionals using the product, with a community/crowdsourcing approach to keeping its contact database current.

Ideal customer profile

Vendor's own claim

Sales development reps, account executives, sales leaders, revenue-operations teams, marketers, and founders who need to prospect, enrich contact data, and run outbound/inbound engagement from one system. Apollo's own FAQ explicitly claims to serve businesses "of all sizes," up to Fortune 500 customers such as Ernst & Young, Oracle, and Lyft, with a free Starter plan for the smallest teams and custom Enterprise plans above that.

Who should look elsewhere

Our read

Teams that need only a narrow slice of Apollo's surface (e.g. just enrichment, or just a CRM) may find it heavier than a single-purpose tool, since pricing and credits are bundled around the whole platform. The credit-metering model (contact unlocks, exports, and mobile numbers all consume separate credit pools with plan-specific monthly/annual caps) adds a layer of usage accounting that teams used to flat per-seat SaaS pricing may find harder to predict at scale. Free/trial accounts are also throttled to low API rate limits (as low as 50 requests/minute on enrichment, less on other endpoints), which is a poor fit for anyone wanting to build a production integration before committing to a paid plan.

Apollo alternatives

Our read

Providers that resolve a person or company to verified contact data — email, phone, firmographics — through an API or a bulk upload.

Category: Contact and company enrichment. Membership is decided by 3 stated tests, not by category tags — see them and the full comparison.

Apollo FAQ

Does Apollo have an API?

Yes.

From official docs
Is there a free tier?

Yes. Apollo offers a permanently free "Starter"/Free plan with basic access to sales engagement tools and a limited contact database, plus a separate free trial (50 credits, 5 mobile credits) of a paid plan's features.

Vendor's own claim
Does Apollo have an MCP server for AI agents?

Yes.

From official docs
How is Apollo priced?

Per-seat monthly/annual subscription (Free $0, Basic $49/user/mo, Professional $99/user/mo, Enterprise custom) layered with a credit system that meters contact unlocks, exports, and mobile-number reveals separately from the seat price.

From official docs
Does Apollo work for large enterprises?

Apollo states it is used by Fortune 500 companies including Ernst & Young, Oracle, and Lyft, with custom Enterprise plans covering integrations, security, and governance compliance.

Vendor's own claim
What CRMs does Apollo integrate with?

The vendor highlights Salesforce and HubSpot integrations, alongside a broader integrations marketplace and an official n8n community node for lead/organization enrichment.

Vendor's own claim
Is there a CLI?

Yes, Apollo publishes an official CLI (apollo-io-cli) on GitHub, with a Homebrew tap for installation.

From official docs
Can Apollo be used from Claude or other AI tools?

Yes. Apollo publishes an official Claude Code / Cowork plugin (apollo-mcp-plugin) on GitHub and markets direct MCP integration pathways for Claude, ChatGPT, and Perplexity.

Vendor's own claim
What are Apollo's API rate limits?

Rate limits are enforced per minute, hour, and day simultaneously and vary by plan and endpoint category; free-tier enrichment is capped at 50 requests/minute, while paid plans reach 1,000/minute on enrichment endpoints with no hourly/daily ceiling.

From official docs
Who founded Apollo and when?

Apollo was founded in 2015 by Tim Zheng (CEO) and Ray Li (CTO); investors include Bain Capital, Sequoia Capital, Tribe Capital, Nexus Venture Partners, NewView Capital, and Y Combinator.

Vendor's own claim
Is Apollo's contact data self-reported or crowdsourced?

Apollo describes a "community-based approach to crowdsourcing data" as part of how it maintains coverage and accuracy across its 240M+ contact / 30M+ company database.

Vendor's own claim

Verify before you buy

  • Full per-plan feature comparison table beyond the short marketing description per plan
  • Exact list of individual MCP tool function names (docs present them as a human-readable action table, not machine tool identifiers)
  • GitHub star count history / whether apolloio org repos are actively maintained beyond what's visible today

Need help setting it up?

This page tells you whether Apollo fits. Cheetah builds and runs the system it goes into — enrichment, sequencing, CRM and the joins between them.

Book a call →

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