ACTIV Financial Systems

ACTIV OnePlatform Web API (One API)

WebSocket/WebAssembly JavaScript API for the ACTIV OnePlatform (Options Atlas), delivering real-time streaming subscriptions, snapshots, queries, and time-series (tick, intraday bar, history bar) market data through a session contract (connect to a OneApi Gateway, then Session.snapshot/subscribe/query/timeSeries). Not REST - the machine-readable contract is the TypeDoc JSON shipped in the "@activfinancial/one-api" npm package.

GitHub

Documentation

📖
Documentation
https://weboneapi.activfinancial.com/documentation
📖
APIReference
https://weboneapi.activfinancial.com/documentation
📖
GettingStarted
https://weboneapi.activfinancial.com/tutorials
📖
Authentication
https://raw.githubusercontent.com/api-evangelist/activ-financial-systems/refs/heads/main/authentication/activ-financial-systems-authentication.yml

Other Resources

🔗
Sandbox
https://weboneapi.activfinancial.com/playground
🔗
SourceCode
https://github.com/activfinancial/one-api-examples
🔗
ErrorCatalog
https://raw.githubusercontent.com/api-evangelist/activ-financial-systems/refs/heads/main/errors/activ-financial-systems-error-codes.yml
🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/activ-financial-systems/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
name: ACTIV OnePlatform Web API (One API)
description: WebSocket/WebAssembly JavaScript API for the ACTIV OnePlatform (Options Atlas), delivering
  real-time streaming subscriptions, snapshots, queries, and time-series (tick, intraday bar, history
  bar) market data through a session contract (connect to a OneApi Gateway, then Session.snapshot/subscribe/query/timeSeries).
  Not REST - the machine-readable contract is the TypeDoc JSON shipped in the "@activfinancial/one-api"
  npm package.
humanURL: https://weboneapi.activfinancial.com/
baseURL: https://weboneapi.activfinancial.com
tags:
- Market Data
- Real-Time Data
- Streaming
- WebSocket
- Time Series
properties:
- type: Documentation
  url: https://weboneapi.activfinancial.com/documentation
- type: APIReference
  url: https://weboneapi.activfinancial.com/documentation
- type: GettingStarted
  url: https://weboneapi.activfinancial.com/tutorials
- type: Sandbox
  url: https://weboneapi.activfinancial.com/playground
- type: SourceCode
  url: https://github.com/activfinancial/one-api-examples
- type: ErrorCatalog
  url: errors/activ-financial-systems-error-codes.yml
- type: Authentication
  url: authentication/activ-financial-systems-authentication.yml