> ## Documentation Index > Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt > Use this file to discover all available pages before exploring further. # Create a Fraud Marker > Use this endpoint to register a fraud marker for a tax ID or Pix key. **Notes:** - Fraud markers are used to flag documents (CPF/CNPJ) or Pix keys associated with fraudulent activity. - The taxIdNumber field is required and represents the person/entity being marked. - The key field is optional and can be used to associate the marker with a specific Pix key. - Fraud markers can also be automatically created when closing an infraction report with AGREED result. ## OpenAPI ````yaml /en/openapi/v3-current/indirect-pix.yaml post /v1/dict/fraud-markers openapi: 3.0.3 info: title: Plugin BR Pix Indirect - Complete API description: | Complete API for Brazilian Pix instant payment system including Pix key dictionary operations, QR code generation/decoding, transactions and transaction limits. version: 1.0.0 servers: - url: https://plugin-pix-indirect.api.lerian.net security: - bearerAuth: [] paths: /v1/dict/fraud-markers: post: tags: - MED API summary: Create a Fraud Marker description: |- Use this endpoint to register a fraud marker for a tax ID or Pix key. **Notes:** - Fraud markers are used to flag documents (CPF/CNPJ) or Pix keys associated with fraudulent activity. - The taxIdNumber field is required and represents the person/entity being marked. - The key field is optional and can be used to associate the marker with a specific Pix key. - Fraud markers can also be automatically created when closing an infraction report with AGREED result. parameters: [] requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/CreateFraudMarkerInput' example: taxIdNumber: '12345678901' fraudType: MULE_ACCOUNT key: fraud@example.com responses: '201': description: Fraud marker created successfully. content: application/json: schema: $ref: '#/components/schemas/FraudMarkerObject' '400': description: '' content: application/json: schema: $ref: '#/components/schemas/ErrorFormat' examples: ErrorPIX0001: $ref: '#/components/examples/ErrorPIX0001' ErrorPIX0003: $ref: '#/components/examples/ErrorPIX0003' ErrorPIX0004: $ref: '#/components/examples/ErrorPIX0004' ErrorPIX0260: $ref: '#/components/examples/ErrorPIX0260' ErrorPIX0261: $ref: '#/components/examples/ErrorPIX0261' ErrorPIX1081: $ref: '#/components/examples/ErrorPIX1081' '409': description: Conflict content: application/json: schema: $ref: '#/components/schemas/ErrorFormat' examples: ErrorPIX1080: $ref: '#/components/examples/ErrorPIX1080' '500': description: Internal Server Error content: application/json: schema: $ref: '#/components/schemas/ErrorFormat' examples: ErrorPIX0000: $ref: '#/components/examples/ErrorPIX0000' '502': description: Bad Gateway content: application/json: schema: $ref: '#/components/schemas/ErrorFormat' examples: ErrorPIX1000: $ref: '#/components/examples/ErrorPIX1000' ErrorPIX1007: $ref: '#/components/examples/ErrorPIX1007' ErrorPIX1099: $ref: '#/components/examples/ErrorPIX1099' deprecated: false security: - bearerAuth: [] components: schemas: CreateFraudMarkerInput: type: object required: - taxIdNumber - fraudType properties: taxIdNumber: type: string description: CPF or CNPJ of the person/entity being marked. example: '12345678901' fraudType: type: string description: Type of fraud. enum: - APPLICATION_FRAUD - MULE_ACCOUNT - SCAMMER_ACCOUNT - OTHER example: MULE_ACCOUNT key: type: string description: Optional Pix key associated with the fraud. example: fraud@example.com FraudMarkerObject: type: object properties: id: type: string description: Unique identifier. example: 019c96a0-0cfd-7d0d-8fc5-17a164b828b6 document: type: string description: CPF or CNPJ. example: '12345678901' fraudType: type: string description: Type of fraud. enum: - APPLICATION_FRAUD - MULE_ACCOUNT - SCAMMER_ACCOUNT - OTHER example: MULE_ACCOUNT key: type: string description: Associated Pix key. example: fraud@example.com status: type: string description: Current status. enum: - REGISTERED - CANCELLED example: REGISTERED createdAt: type: string format: date-time example: '2024-01-15T10:30:00Z' updatedAt: type: string format: date-time example: '2024-01-15T10:30:00Z' ErrorFormat: type: object description: The response message error. required: - code - title - message properties: code: type: string description: A unique, stable identifier for the error. title: type: string description: A brief summary of the issue. message: type: string description: Detailed guidance for resolving the error. examples: ErrorPIX0001: summary: Missing Headers in Request value: code: PIX-0001 title: Missing Headers in Request message: >- Your request is missing one or more required header params. Please refer to the documentation to ensure all necessary header params are included in your request. ErrorPIX0003: summary: Missing Fields in Request value: code: PIX-0003 title: Missing Fields in Request message: >- Your request is missing one or more required fields. Please refer to the documentation to ensure all necessary fields are included in your request. ErrorPIX0004: summary: Invalid Field Values in Request value: code: PIX-0004 title: Invalid Field Values in Request message: >- Your request contains one or more fields with invalid values. Please refer to the documentation to verify that all fields have the correct values. ErrorPIX0260: summary: Invalid Tax ID Format value: code: PIX-0260 title: Invalid Tax ID Format message: >- The taxIdNumber must be a valid CPF (11 digits) or CNPJ (14 digits) format. ErrorPIX0261: summary: Invalid Key Format value: code: PIX-0261 title: Invalid Key Format message: The key must be between 8 and 32 characters. ErrorPIX1081: summary: Invalid Fraud Type value: code: PIX-1081 title: Invalid Fraud Type message: >- The provider reports that the fraud type is not valid for this operation. ErrorPIX1080: summary: Duplicate Fraud Marker value: code: PIX-1080 title: Duplicate Fraud Marker message: >- The provider reports that a fraud marker already exists for this document and key combination. ErrorPIX0000: summary: Internal Server Error value: code: PIX-0000 title: Internal Server Error message: The server encountered an unexpected error. Please try again later. ErrorPIX1000: summary: Provider Connection Error value: code: PIX-1000 title: Provider Connection Error message: Failed to connect to provider. ErrorPIX1007: summary: Provider Internal Error value: code: PIX-1007 title: Provider Internal Error message: Provider returned an internal error. ErrorPIX1099: summary: Provider Unmapped Error value: code: PIX-1099 title: Provider Unmapped Error message: Provider returned an unmapped error. securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT ````