Best API Integration Platforms in 2026
Updated
In short: Knit is ranked #1 of 34 as of 4 October 2026, ahead of Celigo and Nango. The best-ranked option with a free plan is Celigo. The lowest first paid tier on this page is Sheety at $9.99/mo.
When you need systems to exchange data or trigger work, API integration platforms offer different building blocks to compare. Custom connectors, reusable workflows and webhook triggers speak to how integrations can be assembled; the workflow builder and self-hosted deployment add further distinctions. Check included executions and free-plan availability alongside the paid starting price to understand the usage and cost details shown. Knit, Celigo and Nango are among the entries, as are Workato Agent Studio and Google Cloud Application Integration. Consider whether you need to create workflows, reuse them, or manage deployment yourself, and use the published criteria to assess which capabilities align with your integration work.
34 API integration platforms ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 Knit iPhone + Android RecognisedPhone appDocumentedFree plan 7.9Free Workflow builder: codeCustom connectors: Yes
- 2 Celigo No phone app RecognisedPhone appDocumentedFree plan 6.4Free
- 3 Nango No phone app RecognisedPhone appDocumentedFree plan 6.3$50/mo Workflow builder: codeSelf-hosted deployment: YesCustom connectors: Yes
- 4 Workato Agent Studio No phone app RecognisedPhone appDocumentedFree plan 6.3$75/mo
- 5 Google Cloud Application Integration No phone app RecognisedPhone appDocumentedFree plan 6.2Free Workflow builder: visualSelf-hosted deployment: NoCustom connectors: Yes
- 6 Windmill No phone app RecognisedPhone appDocumentedFree plan 6.2$120/mo Workflow builder: hybridSelf-hosted deployment: YesCustom connectors: Yes
- 7 Apache NiFi No phone app RecognisedPhone appDocumentedFree plan 6.1Free Workflow builder: visualSelf-hosted deployment: Yes
- 8 Sheety No phone app RecognisedPhone appDocumentedFree plan 6.0$9.99/mo Self-hosted deployment: No
- 9 Oracle Integration No phone app RecognisedPhone appDocumentedFree plan 5.8
- 10 n8n No phone app RecognisedPhone appDocumentedFree plan 5.7€20/mo
- 11 SnapLogic No phone app RecognisedPhone appDocumentedFree plan 5.6
- 12 Boomi No phone app RecognisedPhone appDocumentedFree plan 5.5$99/mo
- 13 Jitterbit Harmony No phone app RecognisedPhone appDocumentedFree plan 5.5
- 14 Tray.ai No phone app RecognisedPhone appDocumentedFree plan 5.4
- 15 Apache Camel No phone app RecognisedPhone appDocumentedFree plan 5.3
- 16 Cyclr No phone app RecognisedPhone appDocumentedFree plan 5.3
- 17 elastic.io No phone app RecognisedPhone appDocumentedFree plan 5.3
- 18 Fedify No phone app RecognisedPhone appDocumentedFree plan 5.3 Workflow builder: codeSelf-hosted deployment: YesCustom connectors: No
- 19 Frends No phone app RecognisedPhone appDocumentedFree plan 5.3
- 20 Mule ESB No phone app RecognisedPhone appDocumentedFree plan 5.3$2,000/mo Workflow builder: hybridSelf-hosted deployment: YesCustom connectors: Yes
- 21 MuleSoft Composer No phone app RecognisedPhone appDocumentedFree plan 5.3$2,000/mo Workflow builder: hybridSelf-hosted deployment: YesCustom connectors: Yes
- 22 Prismatic No phone app RecognisedPhone appDocumentedFree plan 5.3
- 23 ServiceNow Integration Hub No phone app RecognisedPhone appDocumentedFree plan 5.3 Workflow builder: visualSelf-hosted deployment: NoCustom connectors: Yes
- 24 WSO2 Integrator No phone app RecognisedPhone appDocumentedFree plan 5.3 Workflow builder: hybridSelf-hosted deployment: YesCustom connectors: Yes
- 25 Pandium No phone app RecognisedPhone appDocumentedFree plan 5.2$499/mo Workflow builder: codeSelf-hosted deployment: No
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which API integration platform is ranked first on Samsung Mobile US Press?
Knit is ranked #1 of 34 with a score of 7.9. Celigo is second and Nango third.
How many of these have a free plan?
8 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Sheety has the lowest first paid tier we found: $9.99/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation. Paid placements never change a rank.