HubSpot CRM

• ▸Contact, deal, and task management on one shared CRM data model
• ▸Deal pipelines and reporting dashboards
• ▸Email tracking, templates, and meeting scheduling
• ▸Breeze Assistant and Agent Hub AI agents (Prospecting Agent, Data Agent, Customer Agent) billed through HubSpot Credits
• ▸Live chat, chatbots, and a shared inbox
• ▸CRM import tooling and ticketing
• ▸Payment links
• ▸2,000+ apps in the HubSpot Marketplace
• ▸Mobile app (iOS and Android)

Authentication

OAuth for apps, or a static auth token for an app installed in a single account; the remote MCP server requires OAuth with PKCE via an MCP connector

Base URL

https://api.hubapi.com/

Rate limits

Depends on subscription. Privately distributed apps: 100 requests per 10 seconds per app and 250,000 per day per account on Free and Starter, 190 per 10 seconds with 625,000 per day on Professional and 1,000,000 per day on Enterprise (API limit increase add-on raises this). Marketplace OAuth apps: 110 requests every 10 seconds per installing account, excluding the CRM Search API. Associations, CRM Search, and GraphQL APIs have their own stricter limits.

Notable endpoints

• CRM objects, date-versioned (e.g. GET /crm/objects/2026-09/contacts)
• CRM search API
• Associations API
• Exports API
• Webhooks (up to 1,000 subscriptions per app)

MCP tools exposed

get_user_detailsget_organization_detailsdiscover_hubspot_schemasearch_crm_objectsget_crm_objectsmanage_crm_objectsmanage_segmentquery_crm_datasearch_propertiesget_propertiesmanage_custom_propertiesmanage_custom_pipelinessearch_ownersget_campaign_attribution_reportsread_campaign_datamanage_campaign_objectssearch_conversationsget_conversation_channel_metadataget_marketing_email_analyticsmanage_marketing_emailget_content_analytics_reportmanage_landing_pagemanage_website_pageget_aeo_metricsmanage_aeo_promptsmanage_aeo_recommendationsrender_landing_page_uirender_assetmanage_blog_postmanage_onboardingtool_guidancesubmit_feedback

Machine-readable spec

No OpenAPI link

Checked 2026-09-24 against their pricing page. Vendors change pricing without notice.

HubSpot CRM is the free core of HubSpot's platform: contacts, companies, deals, and tickets on one data model, with paid Hubs (Marketing, Sales, Service, Content, Data, Revenue) and paid Smart CRM seats layered on top for automation, reporting, and AI.

HubSpot markets the free CRM at startups and small businesses replacing spreadsheets, with paid Starter, Professional, and Enterprise editions aimed at scaling the same account into full marketing, sales, and service automation without migrating data.

Sales Hub Professional and Enterprise carry required one-time onboarding fees ($1,500 and $3,500 respectively, per the Sales Hub pricing page) on top of seat prices, and Professional's monthly payment option still commits you annually. The free plan is limited to 2 users (and 1,000 contacts, per the CRM product page), so it stops being viable once a team grows past a couple of reps. AI agents run on metered HubSpot Credits ($9 per 1,000 credits paid annually) beyond each tier's monthly allotment, which adds a variable cost on top of seat prices. Some MCP capabilities depend on the subscription: creating custom pipelines is not supported on free tools, and quotes and AEO tools need Professional or Enterprise Hubs.

Systems of record for customer relationships that treat the data model as programmable, competing on API quality and flexibility rather than on breadth of built-in modules.

Category: Modern and developer-facing CRM. Membership is decided by 3 stated tests, not by category tags — see them and the full comparison.

AttioAPIMCPFully user-definable objects with an API that mirrors them, plus a documented MCP server.CloseDay.aifolkAPIPipedriveTwentyOpen source and self-hostable, which changes the lock-in calculation more than any feature does.

• A machine-readable OpenAPI specification was not included in the reviewed source set.