Flanks

Flanks is an AI-powered wealth data platform, headquartered in Barcelona with offices in Madrid, Paris, and London, that aggregates and standardizes investment and banking data from 700+ financial institutions into a single unified model. It serves financial advisors, banks, family offices, and asset managers through its Aggregate and Lume modules, processing millions of portfolios monthly across the EU. The Flanks API exposes an OAuth2-secured Connect flow (link accounts, resolve MFA/SCA challenges), plus Credentials, Entities, Aggregation, and Letters APIs that return portfolios, investments, accounts, liabilities, cards, and their transactions. A hosted Model Context Protocol (MCP) server gives AI assistants direct, OAuth-secured access to the same multi-bank investment data.

Flanks publishes 1 API on the APIs.io network. Tagged areas include Company, Wealth Management, Financial Data, Data Aggregation, and Fintech.

Flanks’ developer surface includes documentation, API reference, getting-started guide, authentication, changelog, sandbox, engineering blog, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

40.1/100 thin ▬ flat Agent 30/100 agent aware Full breakdown ↓
scored 2026-08-10 · rubric v0.9.1

AccessSelf serve

1 APIs 1 MCP Servers

CompanyWealth ManagementFinancial DataData AggregationFintechInvestmentsOpen BankingAPIs

Kin Score

Kin Score How this is scored →
scored 2026-08-10 · rubric v0.9.1

Composite quality — 40.1/100 · thin

Contract Quality 0.0 / 25

Developer Ergonomics 14.8 / 20

Commercial Clarity 10.0 / 20

Operational Transparency 4.1 / 13

Governance 1.5 / 12

Discoverability 8.7 / 10

Agent readiness — 30/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 3 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

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/flanks: 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.

Flanks API

OAuth2-secured wealth-data API covering the Connect flow (connectors, sessions, SCA resolution), Credentials, Entities, Aggregation, and Letters, returning standardized portfoli...

MCP Servers 1

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

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Sandbox

Sandbox

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

WellKnown

WellKnown

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

Conventions

ErrorCatalog

Lifecycle

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 7

Authentication, authorization, and security posture

Authentication

Authentication

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

TrustCenter

Compliance

DomainSecurity

Scroll for all 7

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Blog

Blog

Source (apis.yml)

aid: flanks
name: Flanks
description: Flanks is an AI-powered wealth data platform, headquartered in Barcelona with offices in Madrid, Paris, and London,
  that aggregates and standardizes investment and banking data from 700+ financial institutions into a single unified model.
  It serves financial advisors, banks, family offices, and asset managers through its Aggregate and Lume modules, processing
  millions of portfolios monthly across the EU. The Flanks API exposes an OAuth2-secured Connect flow (link accounts, resolve
  MFA/SCA challenges), plus Credentials, Entities, Aggregation, and Letters APIs that return portfolios, investments, accounts,
  liabilities, cards, and their transactions. A hosted Model Context Protocol (MCP) server gives AI assistants direct, OAuth-secured
  access to the same multi-bank investment data.
url: https://raw.githubusercontent.com/api-evangelist/flanks/refs/heads/main/apis.yml
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://cdn.prod.website-files.com/66d71d258c24eef64e16030e/66e002e85abba93409df5c36_flanks-opengrapfh.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
- earlybird
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Wealth Management
- Financial Data
- Data Aggregation
- Fintech
- Investments
- Open Banking
- APIs
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Flanks API
  description: OAuth2-secured wealth-data API covering the Connect flow (connectors, sessions, SCA resolution), Credentials,
    Entities, Aggregation, and Letters, returning standardized portfolios, investments, accounts, liabilities, and cards from
    700+ financial institutions.
  humanURL: https://docs.flanks.io/
  baseURL: https://api.flanks.io
  tags:
  - Wealth Management
  - Financial Data
  - Aggregation
  properties:
  - type: Authentication
    url: authentication/flanks-authentication.yml
  - type: Documentation
    url: https://docs.flanks.io/
  - type: APIReference
    url: https://docs.flanks.io/pages/flanks-apis/connect-api/v2/
  - type: GettingStarted
    url: https://docs.flanks.io/pages/integration-example/
common:
- type: DeveloperPortal
  url: https://docs.flanks.io/
- type: Documentation
  url: https://docs.flanks.io/
- type: APIReference
  url: https://docs.flanks.io/pages/flanks-apis/connect-api/v2/
- type: GettingStarted
  url: https://docs.flanks.io/pages/integration-example/
- type: Authentication
  url: authentication/flanks-authentication.yml
- type: MCPServer
  url: mcp/flanks-mcp.yml
- type: WellKnown
  url: well-known/flanks-well-known.yml
- type: SecurityTxt
  url: well-known/flanks-security.txt
- type: VulnerabilityDisclosure
  url: security/flanks-vulnerability-disclosure.yml
- type: Security
  url: https://www.flanks.io/responsible-disclosure
- type: TrustCenter
  url: https://www.flanks.io/security-and-privacy
- type: Compliance
  url: https://www.flanks.io/security-and-privacy
- type: Conformance
  url: conformance/flanks-conformance.yml
- type: DomainSecurity
  url: security/flanks-domain-security.yml
- type: Conventions
  url: conventions/flanks-conventions.yml
- type: ChangeLog
  url: changelog/flanks-changelog.yml
- type: ErrorCatalog
  url: errors/flanks-problem-types.yml
- type: Lifecycle
  url: lifecycle/flanks-lifecycle.yml
- type: Sandbox
  url: sandbox/flanks-sandbox.yml
- type: DataModel
  url: data-model/flanks-data-model.yml
- type: Packages
  url: packages/flanks-packages.yml
- type: SDKs
  url: packages/flanks-packages.yml
- type: LLMsTxt
  url: llms/flanks-llms.txt
- type: Blog
  url: https://www.flanks.io/blog
- type: Support
  url: https://www.flanks.io/customer-service
- type: Login
  url: https://platform.flanks.io
- type: TermsOfService
  url: https://www.flanks.io/terms-conditions
- type: PrivacyPolicy
  url: https://www.flanks.io/privacy-policy
- type: GitHubOrganization
  url: https://github.com/flanksio
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Flanks

Kin Score

APIs 1

Flanks API

MCP Servers 1

flanks-mcp.yml

Security Posture 4

Flanks Authentication

Flanks Domain Security

Flanks Vulnerability Disclosure

Flanks Trust Center

Resources