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

# Check velocity limits



## OpenAPI

````yaml openapi/fraud.yaml post /fraud/velocity/check
openapi: 3.0.3
info:
  title: TXCloud FraudShield API
  version: 1.0.0
  description: |
    The TXCloud FraudShield API provides fraud detection signals that enhance 
    identity verification, plus tools to manage fraud rules, blocklists, and 
    investigate suspicious activity.

    ## How It Works
    FraudShield is called internally by the Identity API during verification.
    Clients receive fraud signals in the verification response. These endpoints
    are for configuration, investigation, and advanced use cases.
  contact:
    name: TXCloud API Support
    email: support@txcloud.io
servers:
  - url: https://api.txcloud.io/v1
    description: Production
  - url: https://sandbox.api.txcloud.io/v1
    description: Sandbox
security:
  - BearerAuth: []
tags:
  - name: Duplicates
    description: Duplicate detection across verifications
  - name: Devices
    description: Device intelligence and fingerprinting
  - name: Velocity
    description: Rate limiting and velocity controls
  - name: Blocklist
    description: Blocklist management
  - name: Rules
    description: Custom fraud rules engine
  - name: Signals
    description: Fraud signal reporting and management
  - name: Analytics
    description: Fraud analytics and reporting
paths:
  /fraud/velocity/check:
    post:
      tags:
        - Velocity
      summary: Check velocity limits
      operationId: checkVelocity
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/VelocityCheckRequest'
      responses:
        '200':
          description: Velocity check result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VelocityCheckResult'
components:
  schemas:
    VelocityCheckRequest:
      type: object
      required:
        - action
      properties:
        action:
          type: string
        user_id:
          type: string
        ip_address:
          type: string
        device_id:
          type: string
        window:
          type: string
    VelocityCheckResult:
      type: object
      properties:
        id:
          type: string
        allowed:
          type: boolean
        reason:
          type: string
        counts:
          type: object
        triggered_rules:
          type: array
          items:
            type: object
        retry_after:
          type: integer
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer

````