HubSpot API

HubSpot's CRM and marketing automation platform API for managing contacts, companies, deals, tickets, and marketing workflows with an official MCP server.

Evaluated Mar 06, 2026 (0d ago) vcurrent

Homepage ↗ Repo ↗ Other hubspot crm sales marketing mcp-server rest-api sdk contacts deals

⚙ Agent Friendliness

/ 100

Can an agent use this?

🔒 Security

/ 100

Is it safe for agents?

⚡ Reliability

/ 100

Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality

Documentation

Error Messages

Auth Simplicity

Rate Limits

🔒 Security

TLS Enforcement

100

Auth Strength

Scope Granularity

Dep. Hygiene

Secret Handling

Private app tokens are scoped, OAuth2 for multi-tenant. SOC2 Type II, HIPAA available on enterprise. HubSpot MCP server is community-maintained — audit before production use.

⚡ Reliability

Uptime/SLA

Version Stability

Breaking Changes

Error Recovery

Best When

An agent needs to interact with a HubSpot CRM for sales/marketing automation with natural language through the official MCP server.

Avoid When

You need a lightweight CRM or don't already use HubSpot.

Use Cases

• Creating and updating CRM contacts and deals from agent workflows
• Lead enrichment and qualification automation
• Sales pipeline management and deal tracking
• Marketing email and campaign automation
• Customer support ticket creation and routing

Not For

• Teams on tight budgets (HubSpot paid plans are expensive)
• Simple contact management without marketing automation needs
• Real-time high-frequency data ingestion

Interface

REST API

Yes

GraphQL

gRPC

MCP Server

Yes ↗

SDK

Yes

Webhooks

Yes

OpenAPI Spec ↗

Authentication

Methods: api_key oauth2

OAuth: Yes Scopes: Yes

Private apps use bearer token (API key). Public apps use OAuth2 with fine-grained scopes. MCP server uses private app token. OAuth2 needed for multi-tenant scenarios.

Pricing

Model: freemium

Free tier: Yes

Requires CC: No

Free CRM is genuinely full-featured for basic use. API access is available on free tier with rate limits. Advanced automation requires paid plans.

Agent Metadata

Pagination

cursor

Idempotent

Partial

Retry Guidance

Documented

Known Gotchas

⚠ Rate limits of 100-150/10s can be exhausted quickly by agents processing large contact lists
⚠ API versioning: v1, v2, v3 APIs coexist with different patterns - use v3/crm for modern work
⚠ Association APIs are complex - creating contacts, companies, and deals requires separate association calls
⚠ MCP server is community-maintained, not officially from HubSpot engineering team
⚠ Property validation is strict - custom properties must be created before use

Alternatives

salesforce-api pipedrive-api close-crm-api

Full Evaluation Report

Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for HubSpot API.

$99

API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-03-06.