13FLOW

13FLOW is an independent research and data lab operating the 13FLOW platform, which provides read‑only, source‑linked SEC EDGAR filing intelligence. It aggregates 13F ownership data, Form 4 insider activity, and offers API and MCP contracts for developers building financial analysis workflows. The service includes a sandbox, methodology documentation, and a trust layer that flags data quality and provenance, aiming to deliver evidence‑first financial intelligence to agents and dashboards.

13FLOW publishes 26 API contracts indexed on the APIs.io network, including Agent Stats API, Buyer Pack API, Buyer Pack.md API, and 23 more. Tagged areas include Finance, Data, SEC, and Research.

The 13FLOW catalog on APIs.io includes 1 Spectral governance ruleset.

13FLOW’s developer surface includes sandbox, API reference, and 11 more developer resources.

🌐 Visit website📡 Profile data on GitHub
30.9/100 thin ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →
AccessOpen
1 published contract
FinanceDataSECResearch

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0
Composite quality — 30.9/100 · thin
Contract Quality 8.3 / 21
Developer Ergonomics 2.4 / 17
Access Clarity 2.7 / 17
Operational Transparency 5.2 / 11
Contract Governance 1.9 / 10
Discoverability 4.6 / 9
Regulatory Posture 4.4 / 15
Agent readiness — 20/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 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 0 / 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 Securities & Market Data 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
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/.
Show this score on your site. Kin Score badge preview for 13FLOW It updates itself when the score changes. Paste this where you link to your API docs: 
<a href="https://apis.io/providers/13flow-eu/"><img src="https://apis.io/badge/13flow-eu/card.svg" alt="13FLOW on APIs.io — Kin Score by API Evangelist"></a>
Other styles, a README pill and a shields.io endpoint are on the badge page.
Raise your score.
Agent readiness — checks not met, largest first (exact, from this profile):
  • MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
  • Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
  • 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)
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
  • Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
  • Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
9 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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.
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/13flow-eu/apis.yml: open an issue on github.com/api-evangelist/13flow-eu 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 →

Standards implemented 1

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.

OpenAPI
measured — observed by APIs.io (published)

APIs 26

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

13FLOW Agent Stats API

The Agent Stats API from 13FLOW — 1 operation(s) for agent stats.

13FLOW Buyer Pack API

The Buyer Pack API from 13FLOW — 1 operation(s) for buyer pack.

13FLOW Buyer Pack.md API

The Buyer Pack.md API from 13FLOW — 1 operation(s) for buyer pack.md.

13FLOW Compare API

The Compare API from 13FLOW — 1 operation(s) for compare.

13FLOW Consensus API

The Consensus API from 13FLOW — 2 operation(s) for consensus.

13FLOW Coverage API

The Coverage API from 13FLOW — 1 operation(s) for coverage.

13FLOW Data Quality API

The Data Quality API from 13FLOW — 1 operation(s) for data quality.

13FLOW Events API

The Events API from 13FLOW — 1 operation(s) for events.

13FLOW Fund API

The Fund API from 13FLOW — 1 operation(s) for fund.

13FLOW Funds API

The Funds API from 13FLOW — 1 operation(s) for funds.

13FLOW I18n API

The I18n API from 13FLOW — 1 operation(s) for i18n.

13FLOW Live Status API

The Live Status API from 13FLOW — 1 operation(s) for live status.

13FLOW MCP API

The Mcp API from 13FLOW — 1 operation(s) for mcp.

13FLOW Methodology API

The Methodology API from 13FLOW — 3 operation(s) for methodology.

13FLOW Pilot Intake API

The Pilot Intake API from 13FLOW — 1 operation(s) for pilot intake.

13FLOW Pilot Intake.md API

The Pilot Intake.md API from 13FLOW — 1 operation(s) for pilot intake.md.

13FLOW Pilot Request Assist API

The Pilot Request Assist API from 13FLOW — 1 operation(s) for pilot request assist.

13FLOW Product Status API

The Product Status API from 13FLOW — 1 operation(s) for product status.

13FLOW Research Readiness API

The Research Readiness API from 13FLOW — 1 operation(s) for research readiness.

13FLOW Sandbox API

The Sandbox API from 13FLOW — 4 operation(s) for sandbox.

13FLOW Security Posture API

The Security Posture API from 13FLOW — 1 operation(s) for security posture.

13FLOW Signals API

The Signals API from 13FLOW — 2 operation(s) for signals.

13FLOW Stocks API

The Stocks API from 13FLOW — 1 operation(s) for stocks.

13FLOW Trust Artifact API

The Trust Artifact API from 13FLOW — 1 operation(s) for trust artifact.

13FLOW Version API

The Version API from 13FLOW — 1 operation(s) for version.

13FLOW Watchlist API

The Watchlist API from 13FLOW — 2 operation(s) for watchlist.

Scroll for all 26

Pricing Plans 1

Published pricing tiers and plan structures.

13Flow Eu Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

13Flow Eu Rate Limits

2 limits

RATE LIMITS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

13FLOW API Rules

7 rules · 5 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

13Flow Eu Openapi Overlay

0 actions · update

UNRECORDED

Security Posture 3

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

13Flow Eu Authentication

0 schemes

SECURITY

13Flow Eu Domain Security

TLSv1.3 · HSTS · DNSSEC

SECURITY

13Flow Eu Trust Center

SOC 2, ISO 27001

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

13Flow Eu Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

13Flow Eu Agentic Access

34 operations · 1 acting

34 operations · 1 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Sandbox
Sandbox

Documentation 1

Reference material describing how the API behaves

APIReference
APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Spectral
Spectral
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance

Access & Security 4

Authentication, authorization, and security posture

Compliance
Compliance
 Security
Security
 TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage
StatusPage

Company 1

The organization behind the API

Website
Website

Other 1

Properties that don't map to a standard resource type

Hosts
Hosts

Source (apis.yml)

apis.yml Raw ↑ 
aid: 13flow-eu
name: 13FLOW
description: 13FLOW is an independent research and data lab operating the 13FLOW platform, which provides read‑only, source‑linked
  SEC EDGAR filing intelligence. It aggregates 13F ownership data, Form 4 insider activity, and offers API and MCP contracts
  for developers building financial analysis workflows. The service includes a sandbox, methodology documentation, and a trust
  layer that flags data quality and provenance, aiming to deliver evidence‑first financial intelligence to agents and dashboards.
url: https://artifacts.apis.io/13flow-eu/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: medium
  source:
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-02'
  method: derived
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- Finance
- Data
- SEC
- Research
tags_raw:
- Finance
- Data
- SEC
- Research
- API
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/13flow-eu-agentic-access.yml
- type: Spectral
  url: rules/13flow-eu-rules.yml
- type: Compliance
  url: https://13flow.eu/security
- type: ErrorCatalog
  url: errors/13flow-eu-problem-types.yml
- type: Conformance
  url: conformance/13flow-eu-conformance.yml
- type: Hosts
  url: hosts/13flow-eu-hosts.yml
- type: StatusPage
  url: https://13flow.eu/status
- type: Security
  url: https://13flow.eu/security
- type: Sandbox
  url: https://13flow.eu/sandbox
- type: APIReference
  url: https://13flow.eu/developers
- type: TrustCenter
  url: security/13flow-eu-trust-center.yml
- type: DomainSecurity
  url: security/13flow-eu-domain-security.yml
- type: Website
  url: https://13flow.eu/
apis:
- aid: 13flow-eu:13flow-eu-agent-stats-api
  name: 13FLOW Agent Stats API
  description: The Agent Stats API from 13FLOW — 1 operation(s) for agent stats.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Agent Stats
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-agent-stats-api-openapi.yml
- aid: 13flow-eu:13flow-eu-buyer-pack-api
  name: 13FLOW Buyer Pack API
  description: The Buyer Pack API from 13FLOW — 1 operation(s) for buyer pack.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Buyer Pack
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-buyer-pack-api-openapi.yml
- aid: 13flow-eu:13flow-eu-buyer-pack-md-api
  name: 13FLOW Buyer Pack.md API
  description: The Buyer Pack.md API from 13FLOW — 1 operation(s) for buyer pack.md.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Buyer Pack.md
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-buyer-pack-md-api-openapi.yml
- aid: 13flow-eu:13flow-eu-compare-api
  name: 13FLOW Compare API
  description: The Compare API from 13FLOW — 1 operation(s) for compare.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Compare
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-compare-api-openapi.yml
- aid: 13flow-eu:13flow-eu-consensus-api
  name: 13FLOW Consensus API
  description: The Consensus API from 13FLOW — 2 operation(s) for consensus.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Consensus
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-consensus-api-openapi.yml
- aid: 13flow-eu:13flow-eu-coverage-api
  name: 13FLOW Coverage API
  description: The Coverage API from 13FLOW — 1 operation(s) for coverage.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Coverage
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-coverage-api-openapi.yml
- aid: 13flow-eu:13flow-eu-data-quality-api
  name: 13FLOW Data Quality API
  description: The Data Quality API from 13FLOW — 1 operation(s) for data quality.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Data Quality
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-data-quality-api-openapi.yml
- aid: 13flow-eu:13flow-eu-events-api
  name: 13FLOW Events API
  description: The Events API from 13FLOW — 1 operation(s) for events.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-events-api-openapi.yml
- aid: 13flow-eu:13flow-eu-fund-api
  name: 13FLOW Fund API
  description: The Fund API from 13FLOW — 1 operation(s) for fund.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Fund
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-fund-api-openapi.yml
- aid: 13flow-eu:13flow-eu-funds-api
  name: 13FLOW Funds API
  description: The Funds API from 13FLOW — 1 operation(s) for funds.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Fund
  tags_raw:
  - Funds
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-funds-api-openapi.yml
- aid: 13flow-eu:13flow-eu-i18n-api
  name: 13FLOW I18n API
  description: The I18n API from 13FLOW — 1 operation(s) for i18n.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - i18n
  tags_raw:
  - I18n
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-i18n-api-openapi.yml
- aid: 13flow-eu:13flow-eu-live-status-api
  name: 13FLOW Live Status API
  description: The Live Status API from 13FLOW — 1 operation(s) for live status.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Live Status
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-live-status-api-openapi.yml
- aid: 13flow-eu:13flow-eu-mcp-api
  name: 13FLOW MCP API
  description: The Mcp API from 13FLOW — 1 operation(s) for mcp.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - MCP
  tags_raw:
  - Mcp
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-mcp-api-openapi.yml
- aid: 13flow-eu:13flow-eu-methodology-api
  name: 13FLOW Methodology API
  description: The Methodology API from 13FLOW — 3 operation(s) for methodology.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Methodology
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-methodology-api-openapi.yml
- aid: 13flow-eu:13flow-eu-pilot-intake-api
  name: 13FLOW Pilot Intake API
  description: The Pilot Intake API from 13FLOW — 1 operation(s) for pilot intake.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Pilot Intake
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-pilot-intake-api-openapi.yml
- aid: 13flow-eu:13flow-eu-pilot-intake-md-api
  name: 13FLOW Pilot Intake.md API
  description: The Pilot Intake.md API from 13FLOW — 1 operation(s) for pilot intake.md.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Pilot Intake.md
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-pilot-intake-md-api-openapi.yml
- aid: 13flow-eu:13flow-eu-pilot-request-assist-api
  name: 13FLOW Pilot Request Assist API
  description: The Pilot Request Assist API from 13FLOW — 1 operation(s) for pilot request assist.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Pilot Request Assist
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-pilot-request-assist-api-openapi.yml
- aid: 13flow-eu:13flow-eu-product-status-api
  name: 13FLOW Product Status API
  description: The Product Status API from 13FLOW — 1 operation(s) for product status.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Product Status
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-product-status-api-openapi.yml
- aid: 13flow-eu:13flow-eu-research-readiness-api
  name: 13FLOW Research Readiness API
  description: The Research Readiness API from 13FLOW — 1 operation(s) for research readiness.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Research Readiness
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-research-readiness-api-openapi.yml
- aid: 13flow-eu:13flow-eu-sandbox-api
  name: 13FLOW Sandbox API
  description: The Sandbox API from 13FLOW — 4 operation(s) for sandbox.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Sandbox
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-sandbox-api-openapi.yml
- aid: 13flow-eu:13flow-eu-security-posture-api
  name: 13FLOW Security Posture API
  description: The Security Posture API from 13FLOW — 1 operation(s) for security posture.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Security Posture
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-security-posture-api-openapi.yml
- aid: 13flow-eu:13flow-eu-signals-api
  name: 13FLOW Signals API
  description: The Signals API from 13FLOW — 2 operation(s) for signals.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Signals
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-signals-api-openapi.yml
- aid: 13flow-eu:13flow-eu-stocks-api
  name: 13FLOW Stocks API
  description: The Stocks API from 13FLOW — 1 operation(s) for stocks.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Stocks
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-stocks-api-openapi.yml
- aid: 13flow-eu:13flow-eu-trust-artifact-api
  name: 13FLOW Trust Artifact API
  description: The Trust Artifact API from 13FLOW — 1 operation(s) for trust artifact.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Trust Artifact
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-trust-artifact-api-openapi.yml
- aid: 13flow-eu:13flow-eu-version-api
  name: 13FLOW Version API
  description: The Version API from 13FLOW — 1 operation(s) for version.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Version
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-version-api-openapi.yml
- aid: 13flow-eu:13flow-eu-watchlist-api
  name: 13FLOW Watchlist API
  description: The Watchlist API from 13FLOW — 2 operation(s) for watchlist.
  humanURL: https://13flow.eu/developers
  baseURL: https://13flow.eu
  tags:
  - Watchlist
  properties:
  - type: OpenAPI
    url: openapi/13flow-eu-watchlist-api-openapi.yml
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 16
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

13FLOW API — frequently asked questions

Does 13FLOW have an API?

Yes. APIs.io lists 26 APIs from 13FLOW, including 13FLOW Agent Stats API, 13FLOW Buyer Pack API and 13FLOW Buyer Pack.md API, and 23 more.

Is there an OpenAPI specification for the 13FLOW API?

Yes. APIs.io indexes 26 OpenAPI specifications for 13FLOW, each linked for download from this page.

How do I authenticate with the 13FLOW API?

13FLOW documents its authentication (0 schemes). The details are profiled on APIs.io as 13Flow Eu Authentication.

Is the 13FLOW API ready for AI agents?

13FLOW has a Kin Score of 30.9 out of 100 (thin) and an Agent Readiness score of 19.7 (agent-aware), scored by API Evangelist on 2026-11-02.

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