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OpenAPI Specification
openapi: 3.2.0
info:
title: tZERO Institutional API Documents Securities API
description: '## Overview
The **tZERO Institutional API** — programmatic access to transfer-agent, tokenization, and custody operations for institutional issuers and partners.'
version: 1.1.0
contact:
name: T0kenizer API Support
email: api@t0direct.com
servers:
- url: https://api.t0direct.com
description: Production
security:
- ApiKeyAuth: []
tags:
- name: Securities
description: Security and instrument definitions
paths:
/api/v1/securities/:
get:
summary: List securities
tags:
- Securities
description: Returns a paginated list of securities for the authenticated issuer.
parameters:
- schema:
type: integer
default: 1
minimum: 1
in: query
name: page
required: false
description: Page number
- schema:
type: integer
default: 50
minimum: 1
maximum: 200
in: query
name: perPage
required: false
description: Results per page
- schema:
type: string
in: query
name: status
required: false
description: Filter by security status
- schema:
type: string
in: query
name: type
required: false
description: Filter by security type
responses:
'200':
description: Default Response
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/def-12'
pagination:
$ref: '#/components/schemas/def-0'
'401':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
'403':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
operationId: getApiV1Securities
x-operation-id-source: derived
/api/v1/securities/{id}:
get:
summary: Get security
tags:
- Securities
description: Returns a single security by ID, including the top 10 holders.
parameters:
- schema:
type: string
in: path
name: id
required: true
description: Security ID
responses:
'200':
description: Default Response
content:
application/json:
schema:
type: object
properties:
data:
$ref: '#/components/schemas/def-12'
'401':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
'403':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
'404':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
operationId: getApiV1SecuritiesById
x-operation-id-source: derived
/api/v1/securities/{id}/captable:
get:
summary: Get cap table
tags:
- Securities
description: Returns paginated list of all shareholders for this security, ordered by shares descending.
parameters:
- schema:
type: integer
default: 1
minimum: 1
in: query
name: page
required: false
description: Page number
- schema:
type: integer
default: 100
minimum: 1
maximum: 500
in: query
name: perPage
required: false
description: Results per page
- schema:
type: boolean
default: true
in: query
name: minBalance
required: false
description: When true (default), excludes holders with a zero balance
- schema:
type: string
in: path
name: id
required: true
description: Security ID
responses:
'200':
description: Default Response
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/def-13'
pagination:
$ref: '#/components/schemas/def-0'
totalShares:
type:
- string
- 'null'
description: Total shares outstanding for this security
'401':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
'403':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
'404':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
operationId: getApiV1SecuritiesByIdCaptable
x-operation-id-source: derived
/api/v1/securities/{id}/holders:
get:
summary: List security holders
tags:
- Securities
description: Alias for GET /:id/captable. Returns the same paginated shareholder list.
parameters:
- schema:
type: integer
default: 1
minimum: 1
in: query
name: page
required: false
description: Page number
- schema:
type: integer
default: 100
minimum: 1
maximum: 500
in: query
name: perPage
required: false
description: Results per page
- schema:
type: boolean
default: true
in: query
name: minBalance
required: false
description: When true (default), excludes holders with a zero balance
- schema:
type: string
in: path
name: id
required: true
description: Security ID
responses:
'200':
description: Default Response
content:
application/json:
schema:
type: object
properties:
data:
type: array
items:
$ref: '#/components/schemas/def-13'
pagination:
$ref: '#/components/schemas/def-0'
totalShares:
type:
- string
- 'null'
description: Total shares outstanding for this security
'401':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
'403':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
'404':
description: Default Response
content:
application/json:
schema:
$ref: '#/components/schemas/def-1'
operationId: getApiV1SecuritiesByIdHolders
x-operation-id-source: derived
components:
schemas:
def-12:
type: object
properties:
id:
type: string
name:
type: string
symbol:
type:
- string
- 'null'
type:
type: string
status:
type: string
description:
type:
- string
- 'null'
totalShares:
type:
- string
- 'null'
description: Total authorized shares (integer as string)
sharesOutstanding:
type:
- string
- 'null'
parValue:
type:
- string
- 'null'
cusip:
type:
- string
- 'null'
isin:
type:
- string
- 'null'
regType:
type:
- string
- 'null'
description: Regulatory exemption type (e.g. REG_D_506C)
contractAddress:
type:
- string
- 'null'
description: On-chain token contract address
chain:
type:
- string
- 'null'
description: Chain the token contract lives on
dividendRate:
type:
- number
- 'null'
description: Annual dividend rate %
liquidationPref:
type:
- number
- 'null'
description: Liquidation preference multiplier
holders:
type: array
items:
$ref: '#/components/schemas/def-13'
description: Top 10 holders — present on the detail endpoint only
createdAt:
type: string
format: date-time
title: Security
def-0:
type: object
properties:
total:
type: integer
description: Total number of matching records
page:
type: integer
description: Current page number
perPage:
type: integer
description: Records per page
totalPages:
type: integer
description: Total number of pages
title: PaginationMeta
def-13:
type: object
properties:
rank:
type: integer
walletAddress:
type:
- string
- 'null'
description: On-chain holder wallet address
investorId:
type:
- string
- 'null'
investorName:
type:
- string
- 'null'
shares:
type: string
description: Shares held (integer as string)
percentage:
type:
- string
- 'null'
description: Percentage of shares outstanding
lastSyncAt:
type:
- string
- 'null'
format: date-time
description: Last chain-sync timestamp
title: SecurityHolder
def-1:
type: object
properties:
success:
type: boolean
example: false
error:
type: object
properties:
code:
type: string
example: T0K-V1-INV-001
message:
type: string
example: Investor not found
title: ErrorResponse
securitySchemes:
ApiKeyAuth:
type: apiKey
in: header
name: X-API-Key
description: API key generated at app.t0kenizer.com/ta/api-keys