UserGems is a San Francisco-based sales intelligence platform that tracks champion job changes and surfaces buying signals so sales and marketing teams can prioritize outbound and ABM motions. The platform packages 30+ native signals (job changes, contact-level intent, M&A, hiring, web visits), Gem-E AI agents for prospect list building and email personalization, and custom AI scoring trained on 600+ closed-won patterns. UserGems exposes a public REST API at api.usergems.com/v1 that lets customers programmatically add and remove contacts to track for job changes, add and remove target accounts, and honor data-subject deletion requests. The API uses an X-Api-Key header for authentication and processes submissions asynchronously. Native integrations include Salesforce, HubSpot, Microsoft Dynamics, Outreach, Salesloft, Gong Engage, Marketo, LinkedIn Ads, Meta Ads, and Google Ads.
APIs.json: https://raw.githubusercontent.com/api-evangelist/usergems/refs/heads/main/apis.yml
- Position: Consuming
- Access: 3rd-Party
- Sales Intelligence
- Outbound
- ABM
- Champion Tracking
- Job Changes
- Buying Signals
- AI Scoring
- Sales Engagement
- CRM
- Revenue Operations
- GTM
- Created: 2026-05-25
- Modified: 2026-05-25
The UserGems outbound REST API lets customers programmatically add and remove contacts UserGems should track for job changes, add and remove target accounts to source prospects against, and submit data-subject deletion requests. API key auth via X-Api-Key header; base URL https://api.usergems.com/v1. Five operations across three business surfaces.
- Human URL: https://app.usergems.com/api/documentation
- Sales Intelligence
- Contacts
- Accounts
- Privacy
- Documentation
- Documentation
- OpenAPI — OpenAPI Specification
- Postman Collection — Postman Collection 2.1
- Open Collection — Open Collection 1.0
- JSON Schema — JSON Schema
- JSON Schema — JSON Schema
- JSON-LD — JSON-LD
- Example
- Example
- Example
- Spectral Rules
- Website
- Portal
- Documentation
- Documentation
- Documentation
- Documentation
- Documentation
- Documentation
- Product
- Sign Up
- Pricing
- Blog
- Customers
- Careers
- Contact
- Support
- Privacy Policy
- Terms of Service
- Trust Center
- GitHub Organization
- Plans
- Rate Limits
- Fin Ops
- Integrations
- Features
FN: Kin Lane Email: info@apievangelist.com URL: https://apievangelist.com