insiderfilings.info

InsiderFilings.info provides a public beta REST API delivering normalized SEC ownership transaction line items from Forms 3, 4 and 5, including amendments, aggregated from SEC EDGAR and checked for new filings roughly every five minutes. Coverage from 2025 onward is intended to be complete; older historical coverage may be incomplete. A free 7-day trial covers filings accepted by the SEC within the last 30 days, with 100 requests per UTC day, 10 per minute and up to 100 results per request; the trial window is separate from the database's historical coverage. Users can query recent insider purchases and sales, explore detailed filing data, and integrate this information into compliance, research, or investment workflows.

insiderfilings.info publishes 1 API contract indexed on the APIs.io network: InsiderFilings API. Tagged areas include Insider Trading, SEC Filings, Financial Data, Research Tools, and Market Data.

insiderfilings.info’s developer surface includes documentation and 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

19.7/100 emerging ▬ flat Agent 29/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

2 published contracts

Insider Trading SEC Filings Financial Data Research Tools Market Data

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 19.7/100 · emerging

Contract Quality 8.8 / 21

Developer Ergonomics 1.4 / 17

Access Clarity 0.9 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.5 / 10

Discoverability 6.2 / 9

Regulatory Posture 1.8 / 15

Agent readiness — 29/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 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 4 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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/.

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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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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

7 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 5.3 — up to +18.9 composite points
Developer Ergonomics scores 8.3 — up to +18.3 composite points
Contract Quality scores 41.6 — up to +14.6 composite points

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/insiderfilings-info/apis.yml: open an issue on github.com/api-evangelist/insiderfilings-info 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 1

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

InsiderFilings API

Public Beta REST API for normalized SEC ownership transaction line items from Forms 3, 4 and 5, including amendments. Two GET operations: API status (/) and transactions (/trans...

Security Posture 1

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

Insiderfilings Info Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Playground

Playground

Source (apis.yml)

aid: insiderfilings-info
name: insiderfilings.info
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://insiderfilings.info/assets/social/preview.png
description: InsiderFilings.info provides a public beta REST API delivering normalized SEC ownership transaction line items
  from Forms 3, 4 and 5, including amendments, aggregated from SEC EDGAR and checked for new filings roughly every five minutes.
  Coverage from 2025 onward is intended to be complete; older historical coverage may be incomplete. A free 7-day trial covers
  filings accepted by the SEC within the last 30 days, with 100 requests per UTC day, 10 per minute and up to 100 results
  per request; the trial window is separate from the database's historical coverage. Users can query recent insider purchases
  and sales, explore detailed filing data, and integrate this information into compliance, research, or investment workflows.
url: https://raw.githubusercontent.com/api-evangelist/insiderfilings-info/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-11 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-11'
modified: '2026-10-21'
tags:
- Insider Trading
- SEC Filings
- Financial Data
- Research Tools
- Market Data
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Conformance
  url: conformance/insiderfilings-info-conformance.yml
- type: LLMsTxt
  url: llms/insiderfilings-info-llms.txt
- type: Hosts
  url: hosts/insiderfilings-info-hosts.yml
- type: Vendors
  url: vendors/insiderfilings-info-vendors.yml
- type: PrivacyPolicy
  url: https://insiderfilings.info/privacy.php
- type: DomainSecurity
  url: security/insiderfilings-info-domain-security.yml
- type: Website
  url: https://insiderfilings.info/
- type: Documentation
  url: https://insiderfilings.info/api/v1/docs/
- type: Playground
  url: https://playground.insiderfilings.info/
apis:
- aid: insiderfilings-info:insiderfilings-api
  name: InsiderFilings API
  description: 'Public Beta REST API for normalized SEC ownership transaction line items from Forms 3, 4 and 5, including
    amendments. Two GET operations: API status (/) and transactions (/transactions).'
  humanURL: https://insiderfilings.info/api/v1/docs/
  baseURL: https://insiderfilings.info/api/v1
  tags:
  - Insider Trading
  - SEC Filings
  properties:
  - type: OpenAPI
    url: openapi/_original/openapi.yaml
  - type: OpenAPI
    name: OpenAPI (provider-hosted)
    url: https://insiderfilings.info/api/v1/docs/openapi.yaml
  - type: Documentation
    url: https://insiderfilings.info/api/v1/docs/
  - type: Playground
    url: https://playground.insiderfilings.info/
x-submission-notes: SEC Forms 3/4/5 structured from EDGAR, public beta, API key
x-submission-probe: root 200, docs 200, submitted openapi.yaml path 404 but docs links /api/v1/docs/openapi.yaml 200 (OpenAPI
  3.1.0, 2 ops), invented path 404
x-submitted-by: admin@insiderfilings.info (apis.io/add, 2026-10-10)
x-enrichment:
  date: '2026-10-11'
  status: enriched
  artifacts_added: 10
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

insiderfilings.info API — frequently asked questions

Does insiderfilings.info have an API?

Yes. APIs.io lists 1 API from insiderfilings.info, including InsiderFilings API.

Is there an OpenAPI specification for the insiderfilings.info API?

Yes. APIs.io indexes 1 OpenAPI specification for insiderfilings.info, each linked for download from this page.

How do I authenticate with the insiderfilings.info API?

insiderfilings.info uses bearer-token authentication.

Is the insiderfilings.info API ready for AI agents?

insiderfilings.info has a Kin Score of 19.7 out of 100 (emerging) and an Agent Readiness score of 28.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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