Insightly CRM API

Insightly REST API for CRM and project management platform. Enables AI agents to manage contacts and organizations, track leads and opportunities, manage projects and tasks, access email activity, and integrate Insightly CRM data into marketing and business workflow automation. Insightly combines CRM with lightweight project management, targeting SMB and mid-market.

Evaluated Mar 06, 2026 (0d ago) vcurrent
Homepage ↗ Developer Tools insightly crm project-management contacts leads opportunities smb-crm
⚙ Agent Friendliness
59
/ 100
Can an agent use this?
🔒 Security
66
/ 100
Is it safe for agents?
⚡ Reliability
64
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
28
Documentation
68
Error Messages
62
Auth Simplicity
78
Rate Limits
72

🔒 Security

TLS Enforcement
92
Auth Strength
62
Scope Granularity
48
Dep. Hygiene
62
Secret Handling
65

Customer CRM data. SOC2, GDPR. API key as Basic auth — log sanitization critical. No scope control.

⚡ Reliability

Uptime/SLA
70
Version Stability
65
Breaking Changes
60
Error Recovery
60
AF Security Reliability

Best When

An SMB using Insightly for CRM and project management wants AI agents to automate contact management, track deals, and sync CRM data with marketing and project workflows.

Avoid When

PRIVACY: Customer contact data and sales interactions are personal data. GDPR compliance required for EU contacts.

Use Cases

  • Managing contacts, leads, and opportunities from sales automation agents
  • Tracking project milestones and task completion from project management agents
  • Retrieving pipeline and sales forecast data from revenue analytics agents
  • Integrating Insightly CRM data into marketing automation and email workflow agents

Not For

  • Non-Insightly CRM platforms
  • Large enterprise CRM needs (Insightly targets SMB/mid-market)
  • Pure project management without CRM component

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
No
SDK
No
Webhooks
No

Authentication

Methods: api_key
OAuth: No Scopes: No

Insightly API uses API key as password in HTTP Basic auth (username left blank). API key available in Insightly user settings. Simple but lacks granular access control.

Pricing

Model: freemium
Free tier: Yes
Requires CC: No

Affordable SMB CRM + project management pricing. API available on paid plans.

Agent Metadata

Pagination
page
Idempotent
Partial
Retry Guidance
Not documented

Known Gotchas

  • PRIVACY: Customer CRM data requires GDPR compliance
  • No public MCP server — REST API with Basic auth
  • API key used as Basic auth password — avoid logging auth headers
  • 10 req/sec rate limit — implement back-off for bulk import/export operations
  • No webhooks — must poll for contact and opportunity changes
  • US-only data residency — EU companies must assess compliance

Alternatives

Full Evaluation Report

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

$99

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

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