Nango

Nango.dev is a developer infrastructure platform that simplifies building product integrations with external APIs. It provides the infrastructure to build reliable, scalable integrations fast, including API authentication, a syncing framework, webhook handling, and observability, supporting over 400 APIs with 600+ pre-built integrations.

Nango publishes 6 API contracts indexed on the APIs.io network, including Actions API, Connections API, Integrations API, and 3 more. Tagged areas include AI Agents, Integration, OAuth, Syncing, and Unified API.

The Nango catalog on APIs.io includes 1 Spectral governance ruleset.

Nango’s developer surface includes authentication, documentation, getting-started guide, pricing, engineering blog, changelog, developer portal, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

52.4/100 developing ▬ flat Agent 32/100 agent ready Front door AI 5/6 prominent Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers 16 Features

AI Agents Integration OAuthSyncingUnified API Webhook Authentication

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 52.4/100 · developing

Contract Quality 8.7 / 19

Developer Ergonomics 7.9 / 15

Access Clarity 10.5 / 15

Operational Transparency 5.3 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 32/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 46.3 — up to +13.4 composite points Ask about this →
Contract Governance scores 13.6 — up to +10.4 composite points Ask about this →
Developer Ergonomics scores 52.4 — up to +9.5 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/nango/apis.yml: open an issue on github.com/api-evangelist/nango to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Workflow Automation (iPaaS bridges)	long-tail	2.5 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 4

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OAuth

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

Nango

Nango provides a unified API platform for building product integrations with 600+ external APIs. It offers managed API authentication (OAuth and other auth methods), a syncing f...

Nango Actions API

Trigger one-shot actions.

Nango Connections API

Manage end-user connections and credentials.

Nango Integrations API

Manage integration definitions.

Nango Proxy API

Proxy requests to upstream APIs with credential injection.

Nango Syncs API

Manage and trigger data syncs.

Open Collections 6

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Nango Actions API

OPEN COLLECTION

Nango Actions Connections API

OPEN COLLECTION

Nango Actions Integrations API

OPEN COLLECTION

Nango Actions Proxy API

OPEN COLLECTION

Nango Actions Syncs API

OPEN COLLECTION

Nango API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

MCP Server

MCP SERVER

Nango API pricing

Prices published by Nango, read 2026-10-28 from nango.dev/pricing.

Plan	Price
Free	$0 Includes: 10 connections, 10 hours / mo compute, 10GB / mo data transfer; hard-capped limits, reset monthly
Pay-as-you-go	$50 Includes: $50 in credits, each month
Enterprise	Custom pricing Includes: Discounts with commitments, self-hosting, MSA, SLA
Growth add-on	$450/mo Includes: 5 days requested integration delivery time, private Slack channel

Plan details, limits and sources →

Rate limits

Management API: 600 requests per minute
Proxy API: tier-based (100k-1M/mo) requests per minute
Concurrent syncs: tier-based concurrent

Compiled by API Evangelist, not yet checked against Nango's documentation. Rate-limit details →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Nango Plans Pricing

4 plans

PLANS

Nango Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Nango Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Nango

SLA

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Nango

7 quoted statements, read from Nango's own page on 2026-11-10.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Nango

23 quoted statements, read from Nango's own page on 2026-11-10.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

Nango

5 quoted statements, read from Nango's own page on 2026-11-10.

ELIGIBILITY

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Nango

1 quoted statement, read from Nango's own page on 2026-11-10.

LICENSE

FinOps 1

Cost, billing, and metering signals for API financial operations.

Nango Finops

FINOPS

Features 16

Notable capabilities this provider offers.

Free: 10 connections, 100k proxy/runs/logs/storage/webhooks, 2 envs

Starter from $50/mo: 20 connections, 200k usage, 3 envs

Growth from $500/mo: 100 connections, 1M usage, 10 envs, priority support

Enterprise custom: unlimited, SOC 2, RBAC, SAML SSO, HIPAA option

Self-hosting available on Enterprise

400+ pre-built API integrations

Auth: OAuth 2.0/1.0a, API Key, Basic, JWT, custom

Proxy API for authenticated calls without token management

Sync engine for incremental data syncs

Actions for one-shot operations

Webhooks bridging external -> your app

Functions (TypeScript) for custom logic

Connect UI for embedded auth flows

Admin dashboard for connection health

Logs and metrics for each integration

Open-source core (MIT license)

Scroll for all 16

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Nango API Rules

44 rules · 42 error-severity 1 warn-severity 1 info-severity

SPECTRAL

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Nango Authentication

http · 1 scheme

SECURITY

Nango Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Nango Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

Nango Agentic Access

21 operations · 14 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Portal

Portal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

MCPDocumentation

MCPDocumentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

MCPServer

MCPServer

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubRepository

GitHubRepository

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

ChangeLog

ChangeLog

StatusPage

StatusPage

Commercial 7

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

UsageTerms

DataLicense

Scroll for all 7

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 2

Properties that don't map to a standard resource type

DataProcessing

DataProcessing

Eligibility

Eligibility

Source (apis.yml)

aid: nango
name: Nango
description: Nango.dev is a developer infrastructure platform that simplifies building product integrations with external
  APIs. It provides the infrastructure to build reliable, scalable integrations fast, including API authentication, a syncing
  framework, webhook handling, and observability, supporting over 400 APIs with 600+ pre-built integrations.
type: Index
deliveryModel:
  model: unknown
  license_evidence:
    repo: nangohq/nango
    spdx: NOASSERTION
    stars: 12332
  open_source: unknown
  commercial: true
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - pricing
  - repository-unlicensed
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/nango.png
url: https://raw.githubusercontent.com/api-evangelist/nango/refs/heads/main/apis.yml
created: '2026-01-02'
modified: '2026-09-06'
specificationVersion: '0.23'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
tags:
- AI Agents
- Integration
- OAuth
- Syncing
- Unified API
- Webhook
- Authentication
tags_raw:
- AI Agents
- Integrations
- OAuth
- Syncing
- Unified API
- Webhooks
- Unified-API
- Authentication
apis:
- aid: nango:nango
  name: Nango
  tags:
  - Integration
  - OAuth
  - Unified API
  - Authentication
  tags_raw:
  - Integrations
  - OAuth
  - Unified API
  - Unified-API
  - Authentication
  humanURL: https://www.nango.dev/
  properties:
  - url: https://www.nango.dev/
    type: Documentation
  - url: https://nango.dev/docs/reference/api
    type: Reference
  - url: https://nango.dev/docs/getting-started/quickstart
    type: GettingStarted
  - url: https://nango.dev/docs/guides/primitives/auth
    type: Authentication
  - url: https://nango.dev/docs/llms.txt
    type: LlmsText
  description: Nango provides a unified API platform for building product integrations with 600+ external APIs. It offers
    managed API authentication (OAuth and other auth methods), a syncing framework, proxy for API requests with automatic
    credential injection, webhook handling, and observability.
- aid: nango:nango-actions-api
  name: Nango Actions API
  description: Trigger one-shot actions.
  humanURL: https://www.nango.dev/
  tags:
  - Actions
  properties:
  - type: OpenAPI
    url: openapi/nango-actions-api-openapi.yml
- aid: nango:nango-connections-api
  name: Nango Connections API
  description: Manage end-user connections and credentials.
  humanURL: https://www.nango.dev/
  tags:
  - Connections
  properties:
  - type: OpenAPI
    url: openapi/nango-connections-api-openapi.yml
- aid: nango:nango-integrations-api
  name: Nango Integrations API
  description: Manage integration definitions.
  humanURL: https://www.nango.dev/
  tags:
  - Integration
  tags_raw:
  - Integrations
  properties:
  - type: OpenAPI
    url: openapi/nango-integrations-api-openapi.yml
- aid: nango:nango-proxy-api
  name: Nango Proxy API
  description: Proxy requests to upstream APIs with credential injection.
  humanURL: https://www.nango.dev/
  tags:
  - Proxy
  properties:
  - type: OpenAPI
    url: openapi/nango-proxy-api-openapi.yml
- aid: nango:nango-syncs-api
  name: Nango Syncs API
  description: Manage and trigger data syncs.
  humanURL: https://www.nango.dev/
  tags:
  - Sync
  tags_raw:
  - Syncs
  properties:
  - type: OpenAPI
    url: openapi/nango-syncs-api-openapi.yml
common:
- type: Plans
  url: plans/nango-plans-pricing.yml
- type: RateLimits
  url: rate-limits/nango-rate-limits.yml
- type: FinOps
  url: finops/nango-finops.yml
- type: Website
  url: https://www.nango.dev/
- type: AgenticAccess
  url: agentic-access/nango-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/nango-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/nango-domain-security.yml
- type: Authentication
  url: authentication/nango-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/nangohq
- url: https://nango.dev/docs
  type: Documentation
- url: https://nango.dev/docs/getting-started/quickstart
  type: GettingStarted
- url: https://nango.dev/pricing
  type: Pricing
- url: https://nango.dev/blog
  type: Blog
- url: https://nango.dev/docs/updates
  type: ChangeLog
- url: https://status.nango.dev/
  type: StatusPage
- url: https://app.nango.dev
  type: Portal
- url: https://nango.dev/terms
  type: TermsOfService
- url: https://nango.dev/privacy-policy
  type: PrivacyPolicy
- url: https://github.com/NangoHQ/nango
  type: GitHubRepository
- type: Features
  data:
  - 'Free: 10 connections, 100k proxy/runs/logs/storage/webhooks, 2 envs'
  - 'Starter from $50/mo: 20 connections, 200k usage, 3 envs'
  - 'Growth from $500/mo: 100 connections, 1M usage, 10 envs, priority support'
  - 'Enterprise custom: unlimited, SOC 2, RBAC, SAML SSO, HIPAA option'
  - Self-hosting available on Enterprise
  - 400+ pre-built API integrations
  - 'Auth: OAuth 2.0/1.0a, API Key, Basic, JWT, custom'
  - Proxy API for authenticated calls without token management
  - Sync engine for incremental data syncs
  - Actions for one-shot operations
  - Webhooks bridging external -> your app
  - Functions (TypeScript) for custom logic
  - Connect UI for embedded auth flows
  - Admin dashboard for connection health
  - Logs and metrics for each integration
  - Open-source core (MIT license)
  sources:
  - https://www.nango.dev/pricing
  updated: '2026-05-04'
- name: MCP Server
  url: https://mcp.nango.dev/mcp
  type: MCPServer
- name: MCP Documentation
  url: https://nango.dev/docs/reference/backend/management-mcp
  type: MCPDocumentation
- type: UsageTerms
  url: terms/nango-terms-of-service.yml
- type: DataProcessing
  url: privacy/nango-privacy-policy.yml
- type: Eligibility
  url: eligibility/nango-eligibility.yml
- type: DataLicense
  url: data-license/nango-data-license.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Nango API — frequently asked questions

Does Nango have an API?

Yes. APIs.io lists 6 APIs from Nango, including Nango, Nango Actions API and Nango Connections API, and 3 more.

Is there an OpenAPI specification for the Nango API?

Yes. APIs.io indexes 5 OpenAPI specifications for Nango, each linked for download from this page.

How do I authenticate with the Nango API?

Nango uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Nango Authentication.

How much does the Nango API cost?

Nango publishes its prices; its Free plan is $0 as of 2026-10-28. APIs.io lists 4 pricing plans for Nango, with each plan's price, limits and inclusions under Pricing on this page.

Does Nango have an MCP server?

Yes. APIs.io lists 1 MCP server for Nango.

Is the Nango API ready for AI agents?

Nango has a Kin Score of 52.4 out of 100 (developing) and an Agent Readiness score of 31.6 (agent-ready), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

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