API Integration Platform
Provider 
Founded 2022
Sells To Enterprise, Small Business
Pricing Model Recurring, Usage-based
Ownership Venture Capital

Nango offers an open-source API integration platform for B2B SaaS.
Nango offers a developer-first integration platform combining pre-built templates, AI-assisted code generation, and scalable infrastructure. The platform handles OAuth, syncs, actions, webhooks, and MCP tools across 30 API categories.
Nango's open-source approach has garnered 10.8k GitHub stars and serves thousands of engineering teams including Replit, Mercor, and Ramp. The platform processes billions of requests monthly and offers both cloud and self-hosted deployment options.
Nylas

Email and Calendar API
nylas.com
Gooseworks

Gooseworks CLI
gooseworks.ai
Paragon

Integration Infrastructure Platform
useparagon.com
Corsair

Open-Source Integration Framework
corsair.dev
Merge

Unified API
merge.dev
Workato

Workato — Integration Platform
workato.com
| Attribute | API Integration Platform | Email and Calendar API | Gooseworks CLI | Integration Infrastructure Platform | Open-Source Integration Framework | Unified API | Workato — Integration Platform | |
|---|---|---|---|---|---|---|---|---|
| Provider | ||||||||
| Founded | 2022 | 2013 | 2022 | 2019 | 2024 | 2020 | 2013 | |
| Sells To | Enterprise, Small Business | Enterprise | Enterprise, Startups | Enterprise | Developers | — | — | |
| Pricing Model | Recurring, Usage-based | Recurring, Software, Usage-based | Recurring, SaaS | Recurring, Software | Open Source | Recurring, Usage-based | Recurring | |
| Ownership | Venture Capital | Private Equity, Venture Capital | Venture-backed private company, Venture Capital | Venture Capital | Privately Held | Private Equity, Venture Capital | Public |
Provider 
Founded 2022
Sells To Enterprise, Small Business
Pricing Model Recurring, Usage-based
Ownership Venture Capital
Provider 
Founded 2013
Sells To Enterprise
Pricing Model Recurring, Software, Usage-based
Ownership Private Equity, Venture Capital
Provider 
Founded 2022
Sells To Enterprise, Startups
Pricing Model Recurring, SaaS
Ownership Venture-backed private company, Venture Capital
Provider 
Founded 2019
Sells To Enterprise
Pricing Model Recurring, Software
Ownership Venture Capital
Provider 
Founded 2024
Sells To Developers
Pricing Model Open Source
Ownership Privately Held