Aeon

Aeon provides real-time, plain‑language data on insider trades, congressional transactions, fund holdings and federal contracts. Pull JSON feeds or use the API to get up‑to‑date filings from SEC, House, Senate, White House and USAspending sources. Free tier offers 500 daily requests, with paid plans for higher volume and faster latency. The service aims to make complex financial disclosures accessible to developers, analysts and AI assistants.

Aeon is profiled on the APIs.io network. Tagged areas include Finance, Data, Insider Trading, and Government.

Aeon’s developer surface includes documentation, API reference, pricing, and 14 more developer resources.

🌐 Visit website📡 Profile data on GitHub
20.0/100 emerging ▼ -8.7 Agent 22/100 agent aware Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
AccessFreemium
0 APIs
FinanceDataInsider TradingGovernment

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
Composite quality — 20.0/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 1.4 / 17
Access Clarity 9.2 / 17
Operational Transparency 2.0 / 11
Contract Governance 0.0 / 10
Discoverability 3.3 / 9
Regulatory Posture 3.2 / 15
Agent readiness — 22/100 · agent aware
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 0 / 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 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 Government & Public Sector 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 Aeon It updates itself when the score changes. Paste this where you link to your API docs: 
<a href="https://apis.io/providers/aeondata-io/"><img src="https://apis.io/badge/aeondata-io/card.svg" alt="Aeon 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):
  • Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
  • Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
  • 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)
  • 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
  • Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
8 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/aeondata-io/apis.yml: open an issue on github.com/api-evangelist/aeondata-io 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 3

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.

Model Context Protocol (MCP)
measured — observed by APIs.io (documented)
OAuth 2.0 Protected Resource Metadata
measured — observed by APIs.io (verified)
Dynamic Client Registration
measured — observed by APIs.io (published)

Aeon API pricing

Prices published by Aeon, read 2026-10-31 from aeondata.io/pricing.

PlanPrice
Free $0
Pro $19 USD a month
Business $49 USD a month
Scale $299 USD a month
Enterprise Contact us

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Aeondata Io Plans Pricing

5 plans

PLANS

Security Posture 2

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

Aeondata Io Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Aeondata Io Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login
Login

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Access & Security 4

Authentication, authorization, and security posture

Security
Security
 SecurityTxt
SecurityTxt
 VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

StatusPage
StatusPage
 Contact
Contact

Commercial 4

Pricing, plans, and the legal terms of use

Plans
Plans
 Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

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: aeondata-io
name: Aeon
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  probe_state: unreadable
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://aeondata.io/og.png?v=1
description: Aeon provides real-time, plain‑language data on insider trades, congressional transactions, fund holdings and
  federal contracts. Pull JSON feeds or use the API to get up‑to‑date filings from SEC, House, Senate, White House and USAspending
  sources. Free tier offers 500 daily requests, with paid plans for higher volume and faster latency. The service aims to
  make complex financial disclosures accessible to developers, analysts and AI assistants.
url: https://artifacts.apis.io/aeondata-io/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)
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- Finance
- Data
- Insider Trading
- Government
tags_raw:
- Finance
- Data
- API
- InsiderTrading
- Government
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/aeondata-io-plans-pricing.yml
- type: Security
  url: security/aeondata-io-vulnerability-disclosure.yml
- type: LLMsTxt
  url: llms/aeondata-io-llms.txt
- type: SecurityTxt
  url: well-known/aeondata-io-security.txt
- type: WellKnown
  url: well-known/aeondata-io-well-known.yml
- type: Hosts
  url: hosts/aeondata-io-hosts.yml
- type: Login
  url: https://aeondata.io/signin
- type: VulnerabilityDisclosure
  url: security/aeondata-io-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/aeondata-io-domain-security.yml
- type: Website
  url: https://aeondata.io/
- type: Documentation
  url: https://aeondata.io/developers
- type: APIReference
  url: https://aeondata.io/developers
- type: Pricing
  url: https://aeondata.io/pricing
- type: StatusPage
  url: https://aeondata.io/status
- type: TermsOfService
  url: https://aeondata.io/terms
- type: PrivacyPolicy
  url: https://aeondata.io/privacy
- type: Contact
  url: https://aeondata.io/contact
apis: []
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: No OpenAPI, AsyncAPI, GraphQL, or other machine‑readable contract found on the API host.
  evidence:
  - url: https://api.aeondata.io/openapi.json
    status: 0
  checked: '2026-10-31'
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 15
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Aeon API — frequently asked questions

How much does the Aeon API cost?

Aeon publishes its prices; its Free plan is $0 as of 2026-10-31. APIs.io lists 5 pricing plans for Aeon, with each plan's price, limits and inclusions under Pricing on this page.

Is the Aeon API ready for AI agents?

Aeon has a Kin Score of 20.0 out of 100 (emerging) and an Agent Readiness score of 21.8 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

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One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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  • get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
  • get_provider_ratingPRO — composite, band, trend and facet scores.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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