Flanks website screenshot

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
29.7/100 thin ▬ flat Agent 30/100 agent ready saas Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2
AccessSelf serve
1 APIs 1 MCP Servers
CompanyWealth ManagementFinancial DataData AggregationFintechInvestmentsOpen Banking

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2
Composite quality — 29.7/100 · thin
Contract Quality 0.0 / 21
Developer Ergonomics 5.7 / 17
Access Clarity 7.4 / 17
Operational Transparency 2.0 / 11
Contract Governance 1.9 / 10
Discoverability 6.5 / 9
Regulatory Posture 6.8 / 15
Agent readiness — 30/100 · agent ready
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
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 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 6 / 6
Protected Resource Metadata 5 / 5
Registration Without a Human 6 / 6
Agentic Commerce Surface 0 / 5
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/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.

Flanks MCP Server

Model Context Protocol server giving AI assistants direct access to multi-bank investment data through Flanks. Covers the Connect flow, credential management, and portfolio/inve...

MCP SERVER

Security Posture 4

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

Flanks Authentication

oauth2 · 1 scheme

SECURITY

Flanks Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Flanks Vulnerability Disclosure

security.txt · contact published

SECURITY

Flanks Trust Center

SOC 2 Type II, SOC 3, GDPR

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Sandbox
Sandbox
 Login
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
Conformance
 Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 DataModel
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
Security
 TrustCenter
TrustCenter
 Compliance
Compliance
 DomainSecurity
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)

apis.yml Raw ↑ 
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
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
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: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Wealth Management
- Financial Data
- Data Aggregation
- Fintech
- Investments
- Open Banking
tags_raw:
- 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

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