Quantopian

Quantopian was a Boston-based crowd-sourced quantitative investment firm and algorithmic-trading platform (backed by a16z and Bessemer Venture Partners) where members wrote, backtested, and shared Python trading algorithms against historical market data. The company ceased operations in November 2020 and its intellectual property was acquired by Robinhood; its public developer platform and hosted API are retired. Its widely-used open-source Python libraries - Zipline (backtesting), Pyfolio, Alphalens, Empyrical, and trading-calendars - remain published on PyPI and its GitHub organization stays live.

Quantopian is profiled on the APIs.io network. Tagged areas include Company, Algorithmic Trading, Quantitative Finance, Fintech, and Backtesting.

🌐 Visit website 📡 Source on GitHub

0 APIs

Company Algorithmic Trading Quantitative Finance Fintech Backtesting Open-Source Python Investing

Security Posture 1

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

Quantopian Domain Security

DNSSEC · DMARC

SECURITY

Resources

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

ParentCompany

ParentCompany

Source (apis.yml)

aid: quantopian
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/quantopian.png
name: Quantopian
description: Quantopian was a Boston-based crowd-sourced quantitative investment firm and algorithmic-trading platform (backed
  by a16z and Bessemer Venture Partners) where members wrote, backtested, and shared Python trading algorithms against historical
  market data. The company ceased operations in November 2020 and its intellectual property was acquired by Robinhood; its
  public developer platform and hosted API are retired. Its widely-used open-source Python libraries - Zipline (backtesting),
  Pyfolio, Alphalens, Empyrical, and trading-calendars - remain published on PyPI and its GitHub organization stays live.
url: https://raw.githubusercontent.com/api-evangelist/quantopian/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-status: defunct
x-backed-by:
- a16z
- bessemer-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Algorithmic Trading
- Quantitative Finance
- Fintech
- Backtesting
- Open-Source
- Python
- Investing
tags_raw:
- Company
- Algorithmic Trading
- Quantitative Finance
- FinTech
- Backtesting
- Open Source
- Python
- Investing
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: ParentCompany
  url: https://apis.io/providers/robinhood/
  name: Robinhood
  x-relationship: acquired
  x-evidence: The company ceased operations in November 2020 and its intellectual property was acquired by Robinhood; its
    public developer platform and hosted API are retired.
- type: Packages
  url: packages/quantopian-packages.yml
- type: GitHubOrganization
  url: https://github.com/quantopian
- type: DomainSecurity
  url: security/quantopian-domain-security.yml
- type: Website
  url: https://www.quantopian.com/
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 2
  pass: local-v1

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