Top 10 Business & CRM APIs
Ranked by popularity score. A comparison view generated from structured frontmatter (pricing, auth, docs links).
| Rank | API | Free tier | Starting from | Auth | Details |
|---|---|---|---|---|---|
1 | Salesforce API Access Salesforce CRM data including accounts, contacts, leads, opportunities, and custom objects through REST, SOAP, and Bulk APIs. | No | $25/user/month (Starter Suite) | oauth2 | View |
2 | Shopify API Build custom e-commerce experiences, manage products, orders, customers, and integrate with Shopify's commerce platform through Admin and Storefront APIs. | Yes | Free | oauth2 | View |
3 | Jira API Integrate with Jira's project management and issue tracking platform to manage issues, projects, sprints, and automate development workflows. | Yes | Free | oauth2 | View |
4 | HubSpot API Integrate with HubSpot's CRM, marketing, sales, and service platform to manage contacts, deals, emails, and automate customer workflows. | Yes | Free | oauth2 | View |
5 | Trello API Manage Trello boards, lists, and cards programmatically. Automate workflows, sync data, create custom integrations, and build tools on top of Trello's flexible kanban system. | Yes | Free (10 boards/workspace) | oauth2 | View |
6 | Asana API Manage Asana tasks, projects, teams, and portfolios programmatically. Create custom workflows, sync data, automate task management, and build integrations with Asana's REST API. | Yes | Free (unlimited tasks) | oauth2 | View |
7 | Zendesk API Integrate Zendesk's customer service platform. Manage tickets, users, organizations, automations, and build custom support solutions with comprehensive REST and Events APIs. | Yes | Free (trial) | oauth2 | View |
8 | QuickBooks API Integrate QuickBooks accounting software into your applications. Manage invoices, expenses, customers, vendors, payments, and financial data programmatically. | Yes | Free (sandbox) | oauth2 | View |
9 | Confluence API Access and manage Confluence spaces, pages, and content programmatically. Build integrations with Atlassian's team collaboration and documentation platform. | Yes | Free (10 users) | oauth2 | View |
10 | Monday.com API Access monday.com's Work OS platform via GraphQL API. Manage boards, items, columns, groups, automations, and build custom workflows for team collaboration. | Yes | Free (up to 2 users) | bearer | View |