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Hapkey

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Happeo

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Happierleads

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Happy Grasshopper

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Happy HR

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Happy Returns

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HappyFox

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HappyFox Chat

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HappyMetrix

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HappyPal

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HAProxy

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Haptik

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Hapyak

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HAR

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Harbortouch POS System

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HarbrData

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HarePoint

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Hariken

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Harmon.ie

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Harmonizely

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Harness

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HarperDB

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Harry HR

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Harver

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Harvest

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Harvest SA

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Harvestr

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Harvestr

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Harvey

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HASH

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Hash Metric

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Hashdocs

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HashiCorp

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Hashnode

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Hashoff

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hashport

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Hashtagio

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Haskell

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Hasoffers

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Hasty.ai

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Hasura

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Hatch

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Hatch Bank

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Hatchbuck

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Hatchfi

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Have I Been Pwned

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Hawk Incentives

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Hawk Search

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Popular first starts with editorial picks, then ranks providers by monthly downloads of mapped SDKs on npm and PyPI (refresh attempted 2026-10-26; unavailable measurements retain older counts). Other profiles follow A–Z. Counts reflect unique named profiles returned by the API catalog for this directory. Availability of documentation and integration details varies by provider.