tZERO Issuance & Secondary Markets API
REST/JSON API for creating individual broker-dealer accounts, triggering and reviewing KYC on investors, browsing primary offerings and managing investments, linking bank accounts and moving funds, reading balances, retrieving market schedules and public price history/snapshots, and placing, listing and cancelling orders on the tZERO ATS. Authenticated with an x-apikey header plus a bearer JWT obtained from POST /auth/v1/api/token.
tZERO Issuance & Secondary Markets API is one of 3 APIs that tZERO publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Trading, Onboarding, KYC, Investments, and Market Data. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.
This API exposes 33 operations across 27 paths, organized into 8 resource areas, and defines 72 schemas. It is described by OpenAPI 3.0.3.
Requests are made against a single base URL, https://gateway-web-api.tzero.com/app.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 3
tZERO Issuance & Secondary Markets API declares
3 security schemes
for authenticating requests.
An API key is passed in the header as x-apikey (x-api-key).
It accepts HTTP bearer tokens (JWT) (bearerAuth).
It defines a refreshToken scheme (refreshToken).
Paths & Operations 33
Across 27 paths, the API surfaces 33 operations — 4 DELETE, 14 GET, 1 PATCH, 11 POST, 3 PUT. They span 8 resource areas: Onboarding, Investments, Bank Accounts, Balance, Authorization, Documents, Markets, Trading. Each is listed below with its method, path, parameters, and response codes.
Managing accounts and users (create account, KYC, trusted contact, financial info).
Investments and assets (create, update, submit, cancel, agreements).
Managing bank accounts linked to an investor account (add, list, delete, verify).
Retrieving fiat balances and asset position balances for an account.
Document generation for wire instructions.
Market schedule information including pre-market, regular, and post-market hours.
Order management for secondary-market trading (fees, submit, cancel, list orders).
Schemas 72
The contract defines 72 schemas that model the data the API accepts and returns. The most detailed are OrderResponse (23 properties), SymbolData (17 properties), CreateOrderResponse (15 properties), AgreementDTO (14 properties). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
More from tZERO 2
Other APIs tZERO publishes across the network.
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