Best API Integration Platforms in 2026
33 api integration platforms ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
33ranked
11free plans on this page
€20/molowest paid tier
2 Oct 2026last checked
#1 Celigo Top pick · 9.2 Free plan · Free
#2 Windmill Runner-up · 9.0 Free plan · $120/mo
#3 n8n Also great · 8.5 Free plan · €20/mo
- Free planFree trial Web
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free planFree trial apiLinuxself-hostedWebWindows
- Free plan
- Yes
- Paid from
- 120 /mo
- Workflow builder
- hybrid
- Self-hosted deployment
- Yes
- Custom connectors
- Yes
- Webhook triggers
- Yes
RecognisedDocumentedFree planFree trialPlatforms$120/mofirst paid tier About WindmillVisit site - Free plan self-hosted
- Free plan
- Yes
- Webhook triggers
- Yes
RecognisedDocumentedFree planFree trialPlatforms€20/mofirst paid tier About n8nVisit site - Free planFree trial apiWeb
- Free plan
- Yes
- Workflow builder
- visual
- Self-hosted deployment
- No
- Custom connectors
- Yes
- Webhook triggers
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free planFree trial AndroidapiiOSWeb
- Free plan
- Yes
- Paid from
- 29 /mo
- Workflow builder
- code
- Custom connectors
- Yes
- Webhook triggers
- Yes
RecognisedDocumentedFree planFree trialPlatforms$29/mofirst paid tier About KnitVisit site - Free plan LinuxWindowsmacOS
- Free plan
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan apiself-hostedWeb
- Free plan
- Yes
- Paid from
- 50 /mo
- Workflow builder
- code
- Self-hosted deployment
- Yes
- Custom connectors
- Yes
- Webhook triggers
- Yes
RecognisedDocumentedFree planFree trialPlatforms$50/mofirst paid tier About NangoVisit site - WebWindowsLinuxRecognisedDocumentedFree planFree trialPlatforms
- WebRecognisedDocumentedFree planFree trialPlatforms
- Free plan apiWeb
- Free plan
- Yes
- Paid from
- 75 /mo
RecognisedDocumentedFree planFree trialPlatforms$75/mofirst paid tier About Workato Agent StudioVisit site - Web
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms - WebRecognisedDocumentedFree planFree trialPlatforms
- Free trialRecognisedDocumentedFree planFree trialPlatforms$212/mofirst paid tier About IBM App ConnectVisit site
- Free trial apiself-hostedWeb
- Free plan
- No
- Paid from
- 99 /mo
RecognisedDocumentedFree planFree trialPlatforms$99/mofirst paid tier About BoomiVisit site - RecognisedDocumentedFree planFree trialPlatforms
- Web
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms - Free plan extensionLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
- Paid from
- 30 /mo
RecognisedDocumentedFree planFree trialPlatforms$30/mofirst paid tier About GitHub CodeQLVisit site - Web
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- No
- Workflow builder
- hybrid
- Custom connectors
- Yes
- Webhook triggers
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms - Web
- Free plan
- No
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Workflow builder
- visual
- Self-hosted deployment
- Yes
RecognisedDocumentedFree planFree trialPlatforms - Free plan Web
- Free plan
- Yes
- Paid from
- 2 /mo
- Workflow builder
- code
- Webhook triggers
- Yes
RecognisedDocumentedFree planFree trialPlatforms - WebRecognisedDocumentedFree planFree trialPlatforms
Is your platform 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 The Geeks Club?
Celigo is ranked #1 of 33 with a score of 9.2. Windmill is second and n8n third.
How many of these have a free plan?
11 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, n8n has the lowest first paid tier we found: €20/mo.
How is this list ranked?
Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on. Paid placements never change a rank.
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