Vtiger CRM API
Vtiger CRM REST API — open-source and cloud CRM with sales, support, and marketing modules in one platform, enabling agents to manage contacts, deals, cases, and campaigns across the unified Vtiger CRM suite.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
GDPR compliant on cloud edition. TLS on cloud; self-hosted security depends on deployment. Basic auth with no scope granularity. Open source — security depends on deployment practices. GDPR data processing options available.
⚡ Reliability
Best When
You already use Vtiger CRM and need to automate workflows across its combined sales, support, and marketing modules with a single API.
Avoid When
You're selecting a new CRM — modern alternatives like HubSpot, Pipedrive, or Attio have far better developer APIs and ecosystems.
Use Cases
- • Agents managing the full sales pipeline in Vtiger — creating leads, updating deals, and logging sales activities
- • Customer support integration — agents creating Vtiger cases from external ticketing systems and monitoring SLA compliance
- • Contact data management — agents syncing customer records between Vtiger and external data sources or enrichment services
- • Marketing automation — agents triggering Vtiger marketing campaigns based on CRM segment criteria
- • Workflow automation — agents reading Vtiger data to generate reports and trigger downstream business processes
Not For
- • Modern developer-first teams — Vtiger's API is older-style; use HubSpot or Attio for better developer experience
- • Enterprise-scale CRM — Salesforce is more appropriate for large enterprise with complex customization requirements
- • Teams without CRM history with Vtiger — HubSpot, Pipedrive, or Close offer better onboarding for new CRM deployments
Interface
Authentication
Basic HTTP authentication with username and access key (from Vtiger settings). Token-based auth also available for Vtiger Cloud. No scope granularity — auth tied to user role permissions.
Pricing
Open source edition (Vtiger 7) is free to self-host with full API access. Cloud edition has paid tiers with hosted infrastructure. Open source allows unlimited customization.
Agent Metadata
Known Gotchas
- ⚠ Vtiger uses module-based API — agents must use correct module names (Contacts, Potentials, HelpDesk) in API calls
- ⚠ Record IDs use module-prefixed format (12x456) — agents must handle this format when referencing related records
- ⚠ Self-hosted vs Cloud API differ — some endpoints and behaviors vary between deployment types
- ⚠ Relationship management requires separate retrieve_related API calls — not embedded in record responses
- ⚠ Custom modules and fields require querying available_modules endpoint first — schema is dynamic and installation-specific
Alternatives
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Scores are editorial opinions as of 2026-03-07.