Best API Integration Platforms in 2026

34 API integration platforms ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.

34ranked
0free plans on this page
$499/molowest paid tier
5 Oct 2026last checked

0 of the 9 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.

#AppSignalFree tierOpen codeDevicesFromScore
26FrendsWeb One bar——1 of 6—4.9
27IntegryWeb · API One bar——1 of 6—4.9
28MuleSoft ComposerWeb One bar——1 of 6$2,000/mo4.9
29PandiumWeb · Mac One bar——2 of 6$499/mo4.9
30PrismaticWeb One bar——1 of 6—4.9
31API2CartWeb No signal——1 of 6—4.8
32Happi.devAPI One bar——0 of 6—4.8
33Mule ESBNo platforms listed One bar——0 of 6$2,000/mo4.8
34ParagonWeb One bar——1 of 6—4.8
Compare all 9 in a table
#AppScoreFree planFromFree planPaid fromWorkflow builderSelf-hosted deployment
26Frends4.9No—No———
27Integry4.9No—No—hybrid—
28MuleSoft Composer4.9No$2,000/moNo2,000 /mohybridYes
29Pandium4.9No$499/moNo499 /mocodeNo
30Prismatic4.9No—No———
31API2Cart4.8No—No300 /mocodeYes
32Happi.dev4.8No—No———
33Mule ESB4.8No$2,000/moNo2,000 /mohybridYes
34Paragon4.8No—No———

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