Number26

Number26 — trading as N26 (legally N26 GmbH) — is a German licensed digital bank offering 100% mobile banking to more than 8 million customers across 24 European markets. Founded in Berlin in 2013 and holding a full banking licence from Germany's Federal Financial Supervisory Authority (BaFin), N26 provides current accounts with virtual and physical Mastercard debit cards, instant savings with variable interest, in-app stock/ETF and cryptocurrency investing, real-time spending insights, sub-accounts (Spaces), and travel features such as foreign-exchange and insurance, across a free tier and paid Smart, Go, and Metal plans plus matching business accounts. N26 is a consumer neobank and does not publish a public developer API, developer portal, or API documentation; this API Evangelist profile tracks the company's public web presence.

Number26 publishes 1 API on the APIs.io network: default API. Tagged areas include Company, Fintech, Banking, Neobank, and Mobile Banking.

Number26’s developer surface includes engineering blog, support, documentation, API reference, authentication, and 15 more developer resources.

🌐 Visit website 📡 Source on GitHub

37.5/100 thin ▬ flat Agent 33/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessSelf serve

1 APIs 1 MCP Servers

CompanyFintechBankingNeobankMobile BankingPaymentsEuropeGermany

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 37.5/100 · thin

Contract Quality 10.6 / 21

Developer Ergonomics 6.9 / 17

Access Clarity 3.6 / 17

Operational Transparency 1.2 / 11

Contract Governance 3.1 / 10

Discoverability 6.5 / 9

Regulatory Posture 4.7 / 15

Agent readiness — 33/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance 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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/number26: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

MCP Servers 1

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

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Conformance

Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Postman

Postman

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

Support

Support

Deprecation

Deprecation

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: number26
name: Number26
description: Number26 — trading as N26 (legally N26 GmbH) — is a German licensed digital bank offering 100% mobile banking
  to more than 8 million customers across 24 European markets. Founded in Berlin in 2013 and holding a full banking licence
  from Germany's Federal Financial Supervisory Authority (BaFin), N26 provides current accounts with virtual and physical
  Mastercard debit cards, instant savings with variable interest, in-app stock/ETF and cryptocurrency investing, real-time
  spending insights, sub-accounts (Spaces), and travel features such as foreign-exchange and insurance, across a free tier
  and paid Smart, Go, and Metal plans plus matching business accounts. N26 is a consumer neobank and does not publish a public
  developer API, developer portal, or API documentation; this API Evangelist profile tracks the company's public web presence.
url: https://raw.githubusercontent.com/api-evangelist/number26/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/number26.png
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Fintech
- Banking
- Neobank
- Mobile Banking
- Payments
- Europe
- Germany
apis:
- aid: number26:number26-default-api
  name: Number26 default API
  description: The default API from Number26 — 9 operation(s) for default.
  humanURL: https://github.com/n26/psd2-tpp-docs
  baseURL: https://xs2a.tech26.de/v1/berlin-group/v1
  tags: []
  tags_raw:
  - default
  properties:
  - type: OpenAPI
    url: openapi/number26-default-api-openapi.yml
  - type: Documentation
    url: https://github.com/n26/psd2-tpp-docs
  - type: APIReference
    url: https://github.com/n26/psd2-tpp-docs
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/number26-domain-security.yml
- type: Website
  url: https://n26.com/en-eu
- type: Blog
  url: https://n26.com/en-eu/blog
- type: Support
  url: https://support.n26.com/en-eu
- type: PrivacyPolicy
  url: https://docs.n26.com/legal/06+EU/03+Privacy%20Policy/en/01privacy-policy-en.pdf
- type: TermsOfService
  url: https://n26.com/en-eu/legal-documents
- type: GitHubOrganization
  url: https://github.com/n26
- type: Documentation
  url: https://github.com/n26/psd2-tpp-docs
- type: APIReference
  url: https://github.com/n26/psd2-tpp-docs
- type: Postman
  url: https://github.com/n26/psd2-tpp-docs/tree/master/doc/assets/postman
- type: Authentication
  url: authentication/number26-xs2a-authentication.yml
- type: Conventions
  url: conventions/number26-conventions.yml
- type: ErrorCatalog
  url: errors/number26-problem-types.yml
- type: DataModel
  url: data-model/number26-data-model.yml
- type: Conformance
  url: conformance/number26-conformance.yml
- type: Lifecycle
  url: lifecycle/number26-lifecycle.yml
- type: Deprecation
  url: lifecycle/number26-lifecycle.yml
- type: MCPServer
  url: mcp/number26-mcp.yml
- type: Overlay
  url: overlays/number26-xs2a-overlay.yaml
- type: LLMsTxt
  url: llms/number26-llms.txt
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 11
  pass: local-v1

Number26

Kin Score

APIs 1

Number26 default API

Open Collections 2

API Collection

XS2A_N26 default API

MCP Servers 1

Number26 MCP Server

Security Posture 2

Number26 Xs2A Authentication

Number26 Domain Security

Resources