- A firm such as Tradeify lists “Rithmic, system Tradeify”. That is Tradeify bringing its Rithmic into its venue, on the built-in Rithmic provider, with the trader’s own login. It keeps its own back office and stops at accounts.
- A firm such as Meridian issues evaluation accounts on the paper book and turns level 2 on.
- The trader never sees how the firm attached an account. They sign in and it is there. A provider that needs its own login asks for it once.
- One engine, two owners: a trader’s own Demo is an account on the paper book the trader creates and governs. A firm-issued evaluation account runs on the same paper book under the firm’s rules and is never called a demo.
The words
One word per thing. These are the words every page on this site uses.
In the trading guides, the outside market where an order rests is “the market” or the provider’s
name.
What a venue can do, what a provider can do
One table per thing. “Applied” means an order from the trading app goes through it in the sandbox and the trader sees the result; “saved” means the back office stores it and nothing on the order path reads it yet.A venue
A provider
A company can play several of these at once: Hyperliquid is a tile and a provider a venue can plug
in; Meridian runs a venue and is a tile because it is listed. Where a company shows up follows
from those roles.
Who are you?
A firm listing a built-in provider
Like Tradeify: your traders already hold accounts at Rithmic or another built-in provider. Set
up your venue, name the provider and system, get listed, and pre-register your traders so
Connect shows their accounts ready to link.
A firm issuing accounts on the paper book
Like Meridian: you sell evaluations. Your venue issues the accounts, prices them, sets the
stage rule, and governs them with a Venue key. Level 2 is yours to turn on.
Building a trading app
You write the screens. Market data, orders, exits and account state over one base URL with a
Trading API key, and the chart library the platform itself runs.
Writing a public provider
You run a market, or a firm’s own liquidity. Implement the provider contract, pass the
self-check, and a venue can plug you in. A datafeed alone has a shorter path.
Where each key fits
A browser never holds a key. The back office uses the signed-in session for everything a person
does, and your backend holds the keys.
Where to go next
Quick Start
A key, a first call, a venue, a first order.
Sandbox
The isolated environment every key here starts in.
Build
The guides, filed by layer: trading platform, Connect, venue, providers.