aid: apollo-io url: https://raw.githubusercontent.com/api-evangelist/apollo-io/refs/heads/main/apis.yml name: Apollo.io x-type: company description: >- Apollo.io is a sales intelligence and engagement platform combining a 270M+ contact database with email and call sequencing. The Apollo REST API exposes people search & enrichment, organization search & enrichment, contacts, accounts, deals, sequences, email accounts, calls, tasks, meetings, lists, and webhooks. image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg tags: - Sales Intelligence - Prospecting - Engagement - B2B Data - Enrichment - SaaS created: '2026-05-08' modified: '2026-05-08' specificationVersion: '0.19' apis: - aid: apollo-io:apollo-people-search-api name: Apollo People Search API tags: - People - Search - Prospecting properties: - url: https://docs.apollo.io/ type: Documentation - url: https://docs.apollo.io/reference/people-search type: API Reference - url: openapi/apollo-io-openapi.yml type: OpenAPI description: >- Search Apollo's 270M+ person database by title, location, seniority, function, industry, technology stack, and other filters. Returns matching people with optional enrichment fields. - aid: apollo-io:apollo-organization-search-api name: Apollo Organization Search API tags: - Organizations - Companies - Search properties: - url: https://docs.apollo.io/reference/organization-search type: API Reference description: >- Search Apollo's organization database by industry, headcount, revenue, technology stack, location, and funding stage. - aid: apollo-io:apollo-people-enrichment-api name: Apollo People Enrichment API tags: - People - Enrichment properties: - url: https://docs.apollo.io/reference/people-enrichment type: API Reference description: >- Enrich a known person record by email, LinkedIn URL, name + company, or other identifiers; returns work email, mobile, title, social profiles, and tenure. - aid: apollo-io:apollo-organization-enrichment-api name: Apollo Organization Enrichment API tags: - Organizations - Enrichment properties: - url: https://docs.apollo.io/reference/organization-enrichment type: API Reference description: >- Enrich a known organization by domain or LinkedIn URL; returns headcount, industry, revenue, funding, technologies, and location. - aid: apollo-io:apollo-bulk-people-enrichment-api name: Apollo Bulk People Enrichment API tags: - Bulk Enrichment - People properties: - url: https://docs.apollo.io/reference/bulk-people-enrichment type: API Reference description: >- Enrich up to 10 person records in a single API call to reduce round-trip and credit cost. - aid: apollo-io:apollo-bulk-organization-enrichment-api name: Apollo Bulk Organization Enrichment API tags: - Bulk Enrichment - Organizations properties: - url: https://docs.apollo.io/reference/bulk-organization-enrichment type: API Reference description: >- Enrich multiple organizations in a single API call. - aid: apollo-io:apollo-contacts-api name: Apollo Contacts API tags: - Contacts - CRM properties: - url: https://docs.apollo.io/reference/contacts type: API Reference description: >- Manage contacts in your Apollo CRM workspace — create, update, delete, and bulk-import contacts with custom fields and tags. - aid: apollo-io:apollo-accounts-api name: Apollo Accounts API tags: - Accounts - CRM properties: - url: https://docs.apollo.io/reference/accounts type: API Reference description: >- Manage accounts (companies) in your Apollo CRM with stage, ownership, and custom fields. - aid: apollo-io:apollo-deals-api name: Apollo Deals API tags: - Deals - Opportunities - Pipeline properties: - url: https://docs.apollo.io/reference/deals type: API Reference description: >- Manage deals (opportunities) attached to accounts and contacts, including stage, value, probability, and custom fields. - aid: apollo-io:apollo-sequences-api name: Apollo Sequences API tags: - Sequences - Cadences - Outreach properties: - url: https://docs.apollo.io/reference/sequences type: API Reference description: >- Manage outreach sequences (cadences) and add or remove contacts as sequence subscribers; trigger sends and pause/resume schedules. - aid: apollo-io:apollo-email-accounts-api name: Apollo Email Accounts API tags: - Email Accounts - SMTP properties: - url: https://docs.apollo.io/reference/email-accounts type: API Reference description: >- Manage connected email accounts (Gmail / Outlook / SMTP) used for outbound sequence sends and inbox sync. - aid: apollo-io:apollo-emails-api name: Apollo Emails API tags: - Emails - Tracking properties: - url: https://docs.apollo.io/reference/emails type: API Reference description: >- Read sent / received email metadata and tracking events (open, click, reply, bounce) for sequence emails. - aid: apollo-io:apollo-calls-api name: Apollo Calls API tags: - Calls - Telephony properties: - url: https://docs.apollo.io/reference/calls type: API Reference description: >- Log inbound and outbound calls with duration, recording URLs, transcripts, and disposition outcomes. - aid: apollo-io:apollo-tasks-api name: Apollo Tasks API tags: - Tasks properties: - url: https://docs.apollo.io/reference/tasks type: API Reference description: >- Manage user tasks tied to contacts and accounts. - aid: apollo-io:apollo-meetings-api name: Apollo Meetings API tags: - Meetings - Scheduling properties: - url: https://docs.apollo.io/reference/meetings type: API Reference description: >- Manage meetings booked via Apollo's Meetings (scheduling) feature and synced from connected calendar accounts. - aid: apollo-io:apollo-custom-fields-api name: Apollo Custom Fields API tags: - Custom Fields - Metadata properties: - url: https://docs.apollo.io/reference/custom-fields type: API Reference description: >- Define and read custom field schemas across people, organizations, contacts, accounts, and deals. - aid: apollo-io:apollo-lists-api name: Apollo Lists API tags: - Lists - Segments properties: - url: https://docs.apollo.io/reference/lists type: API Reference description: >- Manage saved lists (static and dynamic) for segmenting people and accounts and feeding them into sequences and dialer queues. - aid: apollo-io:apollo-tags-api name: Apollo Tags API tags: - Tags properties: - url: https://docs.apollo.io/reference/tags type: API Reference description: >- Read, create, and apply tags to contacts and accounts for categorization and filtering. - aid: apollo-io:apollo-users-api name: Apollo Users API tags: - Users properties: - url: https://docs.apollo.io/reference/users type: API Reference description: >- Manage users (sales reps, managers) and their roles within the Apollo workspace. - aid: apollo-io:apollo-analytics-api name: Apollo Analytics API tags: - Analytics - Reporting properties: - url: https://docs.apollo.io/reference/analytics type: API Reference description: >- Pull aggregated activity, sequence performance, dialer, and pipeline analytics for reporting use cases. - aid: apollo-io:apollo-api-usage-api name: Apollo API Usage API tags: - Usage - Credits properties: - url: https://docs.apollo.io/reference/api-usage type: API Reference description: >- Read your workspace's API usage and remaining credit balance across hourly, daily, and monthly windows. - aid: apollo-io:apollo-webhooks-api name: Apollo Webhooks API tags: - Webhooks - Events properties: - url: https://docs.apollo.io/reference/webhooks type: API Reference description: >- Subscribe to Apollo events (contact.created, sequence.added, email.opened, call.completed) for downstream automation. common: - type: Website url: https://www.apollo.io/ - type: Documentation url: https://docs.apollo.io/ - type: API Reference url: https://docs.apollo.io/reference - type: Pricing url: https://www.apollo.io/pricing - type: Login url: https://app.apollo.io/ - type: Status url: https://status.apollo.io/ - type: Blog url: https://www.apollo.io/blog - type: Support url: https://knowledge.apollo.io/ - type: GitHub Organization url: https://github.com/apolloio - type: Privacy Policy url: https://www.apollo.io/privacy-policy - type: Terms of Service url: https://www.apollo.io/terms - type: Authentication url: https://docs.apollo.io/reference/authentication - type: Rate Limits url: https://docs.apollo.io/reference/rate-limits - type: Webhooks url: https://docs.apollo.io/reference/webhooks - type: Plans url: plans/apollo-io-plans-pricing.yml - type: RateLimits url: rate-limits/apollo-io-rate-limits.yml - type: FinOps url: finops/apollo-io-finops.yml - type: Features data: - REST API at https://api.apollo.io/api/v1/ - API key authentication via X-Api-Key header - 270M+ person database, 60M+ companies - Free, Basic, Professional, Organization plans - Per-user-per-month seat pricing plus monthly credit allocations - Search, Enrichment, and Mobile credits each tracked separately - Bulk endpoints for batched enrichment to save credits - Per-minute and per-hour API rate limits scaled by plan tier - Webhooks for sequence and engagement events - REST API access requires Basic or higher sources: - https://www.apollo.io/pricing - https://docs.apollo.io/ updated: '2026-05-08' maintainers: - FN: Kin Lane email: kin@apievangelist.com