> ## Documentation Index
> Fetch the complete documentation index at: https://api-docs.imbawallet.com/llms.txt
> Use this file to discover all available pages before exploring further.

# USDT TRC-20 deposit address

> Always call this before every send. Do not cache an address from logs or a previous run.

Unfunded hold is **24 hours**, then the pool slot may move. After the first confirmed
credit the address is sticky. Send **USDT TRC-20 only**.

Expired unfunded holds of **any** agent return to the pool. Empty TRON user pool →
HTTP **503** `{"error":"unavailable"}` (not an empty 500). Limit: 3 calls/hour per client.




## OpenAPI

````yaml /openapi/agent.openapi.yaml post /api/deposit_address
openapi: 3.1.0
info:
  title: IMBA Agent API
  version: 0.1.0
  summary: Prepaid HTTP API for autonomous agents
  description: |
    Permissionless prepaid agents: register an Ed25519 key, fund USDT on TRC-20,
    buy the live catalog (virtual cards, eSIM, gift cards).

    - API host: `https://imbawallet.com` (not `api.imbawallet.com`)
    - Human docs: `https://api-docs.imbawallet.com/agent`
    - HowTo: `https://imbawallet.com/agent_api_about_en.html`
    - Not Partner B2B (`/api/partner`, `https://api.imbawallet.com`)
    - Not a human Wallet HS256 session
    - Access JWT: `typ=agent`, `client_id`, EdDSA (same JWKS as Partner)
    - Tier 0 (default): catalog spend only. Convert closed (AML).
    - Tier 1+: operator reputation after real catalog spend. Convert is a
      separate request — raising the number does not turn convert on.
    - Withdraw and C2C stay closed.
  contact:
    name: IMBA Agent Support
    email: support@imbawallet.com
  license:
    name: Proprietary
    url: https://imbawallet.com
servers:
  - url: https://imbawallet.com
    description: Production (auth + retail /api)
security:
  - bearerAuth: []
tags:
  - name: Auth
    description: Register, assertion JWT, webhook, HMAC
  - name: Deposit
    description: USDT TRC-20 deposit address
  - name: Catalog
    description: Cards, eSIM, gifts, and catalog reads
  - name: KYT
    description: Optional paid address screen
paths:
  /api/deposit_address:
    post:
      tags:
        - Deposit
      summary: USDT TRC-20 deposit address
      description: >
        Always call this before every send. Do not cache an address from logs or
        a previous run.


        Unfunded hold is **24 hours**, then the pool slot may move. After the
        first confirmed

        credit the address is sticky. Send **USDT TRC-20 only**.


        Expired unfunded holds of **any** agent return to the pool. Empty TRON
        user pool →

        HTTP **503** `{"error":"unavailable"}` (not an empty 500). Limit: 3
        calls/hour per client.
      operationId: getAgentDepositAddress
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                blockchain:
                  type: string
                  enum:
                    - tron
                  description: Only `tron` is valid for agents
            example:
              blockchain: tron
      responses:
        '200':
          description: Address plus agent hold fields
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DepositAddressResponse'
        '401':
          $ref: '#/components/responses/Error'
        '403':
          $ref: '#/components/responses/Error'
        '503':
          description: TRON user pool has no free slot (`{"error":"unavailable"}`)
components:
  schemas:
    DepositAddressResponse:
      type: object
      properties:
        address:
          type: string
        blockchain:
          type: string
          example: tron
        sticky:
          type: boolean
        unfunded_release_at:
          type:
            - string
            - 'null'
          format: date-time
        confirmation_blocks:
          type: integer
    Error:
      type: object
      required:
        - error
      properties:
        error:
          type: string
          example: not_allowed
        message:
          type: string
  responses:
    Error:
      description: Error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        EdDSA access token, `typ=agent`, `client_id`. JWKS `GET
        /auth/v1/partner/jwks`.

````