/Companies

Nango

YC W23

San Francisco, US · Founded 2022 · 6 employees · Hiring · 13 known investors

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Nango provides an integration platform that enables software products to connect with 800+ APIs through code-first integrations with built-in authentication and agent support. The platform serves developers and engineering teams building integrations at scale.

Also known as Nango.dev

Cloud ComputingDeveloper ToolsEnterprise SoftwareSaaSOpen SourceAPIUnited States of AmericaAmerica / CanadaFully Remote

Founders & leadership· Y Combinator alumni (W23)

Nango was founded in 2022 by Robin Guldener and Bastien Beurier.

RGRobin Guldener
Robin GuldenerCo-Founder & CEORobin Guldener co-founded Avrios, a fleet management SaaS that reached over 1,000 customers, and later founded Nango to address integration challenges between SaaS platforms.
BBBastien Beurier
Bastien BeurierCo-Founder / CEOBastien Beurier has worked as a software engineer at Uber, Trip.com, and Triplebyte, and previously founded two companies through Y Combinator.

Investors · 13

Also in the syndicate · 5

Akshay KothariCalendlyCloudflareJohn KimRetool

Company profile

researched Aug 2026

Nango is an open-source integration platform that provides API infrastructure for B2B SaaS and AI companies building customer-facing integrations. The platform covers API authentication (OAuth 2.0 flows with automatic token refresh, API keys), tool calls, two-way data syncs, triggers, webhooks, MCP support, and batch operations. It also provides a proxy with automatic credential injection, multi-tenant configuration with tenant isolation, retries, rate-limit management, pagination, and observability with log retention that varies by tier.

As of its 2026 funding announcement, Nango covered more than 900 APIs across 30 categories and processed billions of API requests per month. Earlier material describes a catalog of 400+ APIs and 600+ pre-built integrations for common use cases such as fetching HubSpot contacts, creating GitHub issues, and syncing Salesforce data. Developer tooling includes SDKs for JavaScript/TypeScript, Python, and Go, local development and testing environments, and separate development, staging, and production environments. The open-source foundation allows self-hosting of core components or use of Nango's managed cloud.

Founding story

Nango was founded by Robin Guldener and Bastien Beurier after they experienced first-hand how difficult it is to build product integrations between SaaS applications. Guldener previously co-founded Avrios, a B2B SaaS company for car fleet management that grew to over 1,000 customers. Beurier is a repeat Y Combinator founder and was previously a software engineer at Uber, Trip.com, and Triplebyte.

Business model

Nango sells developer-facing integration infrastructure to engineering teams at software companies, offering both a managed cloud service and a self-hostable open-source core. All API authorization functionality is described as free forever, with tiered offerings that differ in capabilities such as observability log retention.

Commercial revenue comes from its cloud/managed platform tiers layered on an open-source core. The company reported several million dollars in ARR and cashflow-positive operations at the time of its 2026 seed round.

Traction

More than ten thousand engineering teams have used Nango, and the platform processes billions of API requests per month. Named customers include Motion, Replit, Mercor, Ramp, Vapi, and Electric; a third-party profile cites over 300 customer companies. Nango reported several million dollars in ARR and cashflow-positive operations before its 2026 seed round. Motion is cited as building hundreds of API integrations with Nango within weeks.

Latest developments

In 2026 Nango announced a $7.5M seed round led by Gradient, with Horizon, Y Combinator, and angel investors participating, and said it would ship its first wave of AI tooling for building integrations the same week. Recent published content includes a guide for migrating from Composio to Nango (May 2026) and troubleshooting articles on Zendesk and Confluence OAuth refresh token errors (April 2026).

▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies

Market position

Nango positions itself as a code-first, open-source alternative to visual/no-code workflow builders such as Workato and Integrately, and is compared with other developer integration platforms including Composio, Merge, and Ampersand. A third-party AI-visibility tracker categorizes it under Backend & API tooling.

Differentiation is based on a code-centric, open-source architecture that gives developers control and customization (custom integrations-as-code, self-hosting) while retaining managed infrastructure for scale, plus breadth of API coverage and free API authorization. The company argues its open-source, code-first design positions it well to apply coding agents to integration work.

Technology

The platform handles OAuth and other auth schemes with automatic token refresh, proxying with credential injection, bi-directional syncs with custom pagination and transformation, batch operations, webhooks for event-driven updates, triggers, MCP support, and LLM tool calling. Multi-tenant configuration provides per-end-user isolation. SDKs are available for JavaScript/TypeScript, Python, and Go. A third-party profile cites sub-100ms proxy response times with auto-scaling and SOC 2 Type 2 compliance.

Go-to-market

Nango uses a developer- and open-source-led motion: a public open-source repository, free API authorization, extensive documentation and API catalog, self-serve sign-up alongside demo booking, technical content marketing (including competitor migration guides), and Y Combinator launch posts. The company is hiring developer relations and developer content roles.

B2B SaaS companies from early-stage startups to enterprises that must embed many third-party integrations into their products, plus AI product companies. Nango explicitly targets technical audiences — backend and full-stack engineers, platform and product teams — rather than business users seeking no-code tools. Buyers are typically VP Engineering or CTO roles at software companies, often without dedicated integration teams.

Geography

Headquartered in San Francisco, California. Open roles are listed in San Francisco and as remote positions spanning many countries including the UK, France, US, Brazil, Canada, Spain, Portugal, Germany, Austria, Switzerland, Belgium, Netherlands, and Nordic and Central European markets.

History

Sources give differing founding dates: the Y Combinator profile lists Nango as founded in 2022 and a third-party profile says it launched in 2022, while Nango's own blog says the company started in 2023. It began as an open-source OAuth handler supporting roughly 40-55 APIs, joined Y Combinator's Winter 2023 batch, and relaunched as a full product integration platform with 400+ APIs and 600+ pre-built integrations. By 2026 it described itself as an open-source platform for building integrations with AI, spanning 900+ APIs and 30 categories, and announced a $7.5M seed round led by Gradient.

Risks & controversies

Sources report inconsistent founding-year and funding details (2022 versus 2023 founding; a $2M seed reported by a third-party profile versus the $7.5M seed announced by the company), and much of the operating data — ARR, request volume, customer counts — comes from the company's own blog and is not independently verified. The company depends on third-party APIs it does not control and competes in a crowded integration-infrastructure market.

Compiled by commissioned research from 5 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
API categories coveredJan 202630 categories
API requests processedJan 2026Billions of API requests per month
APIs supportedJan 2026900 APIs
CustomersJan 2025300 companies
Engineering teams that have used NangoJan 202610,000 teams
Pre-built integrationsJan 2025600 integrations
Team sizeJan 20266 employees

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Founder mafia

2 people who came through Nango went on to found or lead other companies.

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Companies working in the same space as Nango.

Timeline · 5

launches, deals, and filings
May 2026
Published migration guide from Composio to Nango

Nango published documentation for migrating API integrations from Composio, covering auth, tools, MCP and triggers.

source ↗

Jan 2026
Nango raises $7.5M seed round led by Gradient

Nango announced a $7.5M seed round led by Gradient with participation from Horizon, Y Combinator, and angel investors including Akshay Kothari (Notion) and John Kim (Sendbird). The company stated it was already generating several million in ARR and was cashflow positive before raising.

$7.5M source ↗

Jan 2026
Launch of AI tooling for building integrations

Alongside its funding announcement, Nango said it would launch its first wave of AI tooling for building integrations that week.

source ↗

Jan 2023
Participated in Y Combinator Winter 2023 batch

Nango joined Y Combinator's Winter 2023 batch; primary partner listed as Nicolas Dessaigne.

source ↗

Jan 2023
Relaunch as a full product integration platform

After initially launching as an open-source OAuth handler covering roughly 40-55 APIs, Nango relaunched as a unified, code-first integration platform supporting 400+ APIs and 600+ pre-built integrations, with custom integrations-as-code, self-hosting and a cloud version.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

Legal entities · 1

corporate structure
Nango Inc.

In the news

▸Research sources · 5

primary sources listed

5 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Nango do?
Nango is an open-source, code-first platform for building and running product integrations across 900+ APIs.
Who founded Nango?
Nango was founded by Robin Guldener, Bastien Beurier in 2022.
Who are Nango's investors?
Nango's investors include Felicis Ventures, Gradient Ventures, Horizon, Kima Ventures, Y Combinator, CRV (Charles River Ventures), Kleiner Perkins, Valon Capital.
Where is Nango headquartered?
Nango is headquartered in San Francisco, US.