IAB Tech Lab

IAB Tech Lab Approvals API

Human-in-the-loop approval workflow

Documentation GitHub OpenAPI

Operations 4

GET /approvals List Pending Approvals #

GET /approvals/{approval_id} Get Approval #

POST /approvals/{approval_id}/decide Decide Approval #

POST /approvals/{approval_id}/resume Resume Flow #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Ad Seller System Approvals API
  description: IAB OpenDirect 2.1 compliant seller agent for programmatic advertising. Supports product discovery, tiered pricing, proposal evaluation, multi-round negotiation, deal execution, order management, and change requests.
  contact:
    name: IAB Tech Lab
    url: https://iabtechlab.com/
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0
  version: 1.0.0
tags:
- name: Approvals
  description: Human-in-the-loop approval workflow
paths:
  /approvals:
    get:
      tags:
      - Approvals
      summary: List Pending Approvals
      description: List all pending approval requests. Requires authentication.
      operationId: list_pending_approvals_approvals_get
      parameters:
      - name: authorization
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Authorization
      - name: X-Api-Key
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: X-Api-Key
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /approvals/{approval_id}:
    get:
      tags:
      - Approvals
      summary: Get Approval
      description: 'Get a specific approval request and its response (if any).


        Requires authentication.'
      operationId: get_approval_approvals__approval_id__get
      parameters:
      - name: approval_id
        in: path
        required: true
        schema:
          type: string
          title: Approval Id
      - name: authorization
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Authorization
      - name: X-Api-Key
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: X-Api-Key
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /approvals/{approval_id}/decide:
    post:
      tags:
      - Approvals
      summary: Decide Approval
      description: 'Submit a human decision for a pending approval. Requires authentication.


        The verified principal from the authenticated API key is stamped into

        the audit record; ``body.decided_by`` is kept as a display label only.'
      operationId: decide_approval_approvals__approval_id__decide_post
      parameters:
      - name: approval_id
        in: path
        required: true
        schema:
          type: string
          title: Approval Id
      - name: authorization
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Authorization
      - name: X-Api-Key
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: X-Api-Key
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ApprovalDecisionRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
  /approvals/{approval_id}/resume:
    post:
      tags:
      - Approvals
      summary: Resume Flow
      description: 'Resume a flow after an approval decision has been submitted.


        Requires authentication. Loads the flow state snapshot, applies the

        decision, and returns the final result without re-running expensive

        crew evaluations.'
      operationId: resume_flow_approvals__approval_id__resume_post
      parameters:
      - name: approval_id
        in: path
        required: true
        schema:
          type: string
          title: Approval Id
      - name: authorization
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: Authorization
      - name: X-Api-Key
        in: header
        required: false
        schema:
          anyOf:
          - type: string
          - type: 'null'
          title: X-Api-Key
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema: {}
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ApprovalDecisionRequest:
      properties:
        decision:
          type: string
          title: Decision
        decided_by:
          type: string
          title: Decided By
          default: anonymous
        reason:
          type: string
          title: Reason
          default: ''
        modifications:
          additionalProperties: true
          type: object
          title: Modifications
          default: {}
      type: object
      required:
      - decision
      title: ApprovalDecisionRequest
      description: Request to submit an approval decision.

IAB Tech Lab Approvals API

Operations 4

Documentation

Specifications

Schemas & Data

Other Resources