Quiver Quantitative

Quiver Quantitative is an alternative-data platform that aggregates non-traditional financial datasets and exposes them through a single API. The platform covers congressional and Senate trading, insider trading, lobbying activity, government contracts, corporate patents, executive compensation, institutional and ETF holdings, off-exchange activity, app ratings, and more, giving developers and quantitative researchers programmatic access to alternative data signals starting at $10 per month.

Quiver Quantitative publishes 1 API on the APIs.io network: Beta API. Tagged areas include Alternative Data, Financial Data, Investment Research, Market Data, and Government Data.

Quiver Quantitative’s developer surface includes authentication, documentation, pricing, signup flow, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

31.7/100 thin ▬ flat Agent 23/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

Alternative Data Financial Data Investment Research Market Data Government DataCongressional Trading

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 31.7/100 · thin

Contract Quality 10.1 / 21

Developer Ergonomics 4.0 / 17

Access Clarity 6.7 / 17

Operational Transparency 0.9 / 11

Contract Governance 0.0 / 10

Discoverability 5.8 / 9

Regulatory Posture 4.5 / 15

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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

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/.

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 github.com/api-evangelist/quiver: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

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

Quiver Quantitative API

The Quiver Quantitative API provides REST access to alternative financial datasets including Congressional and Senate stock trading, insider transactions, lobbying disclosures, ...

Quiver Quantitative Beta API

The Beta API from Quiver Quantitative — 6 operation(s) for beta.

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Quiver Quantitative Beta API

OPEN COLLECTION

Quiver Quantitative API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Quiver Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Quiver Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Quiver Finops

FINOPS

Security Posture 2

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

Quiver Authentication

http · 1 scheme

SECURITY

Quiver Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Quiver Agentic Access

6 operations

6 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup

Signup

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: quiver
name: Quiver Quantitative
description: Quiver Quantitative is an alternative-data platform that aggregates non-traditional financial datasets and exposes
  them through a single API. The platform covers congressional and Senate trading, insider trading, lobbying activity, government
  contracts, corporate patents, executive compensation, institutional and ETF holdings, off-exchange activity, app ratings,
  and more, giving developers and quantitative researchers programmatic access to alternative data signals starting at $10
  per month.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/quiver.png
tags:
- Alternative Data
- Financial Data
- Investment Research
- Market Data
- Government Data
- Congressional Trading
created: '2025-02-12'
modified: '2026-04-28'
url: https://raw.githubusercontent.com/api-evangelist/quiver/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis:
- aid: quiver:quiver
  name: Quiver Quantitative API
  description: The Quiver Quantitative API provides REST access to alternative financial datasets including Congressional
    and Senate stock trading, insider transactions, lobbying disclosures, government contracts, corporate patents, executive
    compensation, institutional holdings, ETF holdings, top shareholders, off-exchange activity, app ratings, and the Quiver
    newsfeed. Endpoints are available for both bulk historical datasets and live ticker-specific lookups, organized under
    versioned paths such as /beta and /v1.
  humanURL: https://api.quiverquant.com/
  baseURL: https://api.quiverquant.com
  tags:
  - Alternative Data
  - Financial Data
  - Investment Research
  properties:
  - type: Documentation
    url: https://api.quiverquant.com/docs/
  - type: Pricing
    url: https://www.quiverquant.com/pricing/
  - type: Signup
    url: https://www.quiverquant.com/signup/
  - type: Authentication
    url: https://api.quiverquant.com/docs/
- aid: quiver:quiver-beta-api
  name: Quiver Quantitative Beta API
  description: The Beta API from Quiver Quantitative — 6 operation(s) for beta.
  humanURL: https://api.quiverquant.com/
  baseURL: https://api.quiverquant.com
  tags:
  - Beta
  properties:
  - type: OpenAPI
    url: openapi/quiver-beta-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/quiver-agentic-access.yml
- type: DomainSecurity
  url: security/quiver-domain-security.yml
- type: Authentication
  url: authentication/quiver-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/quiver-quantitative
- type: Website
  url: https://www.quiverquant.com/
- type: Documentation
  url: https://api.quiverquant.com/docs/
- type: Pricing
  url: https://www.quiverquant.com/pricing/
- type: Signup
  url: https://www.quiverquant.com/signup/
- type: Blog
  url: https://www.quiverquant.com/blog/
- type: TermsOfService
  url: https://www.quiverquant.com/terms/
- type: PrivacyPolicy
  url: https://www.quiverquant.com/privacy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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