> ## Documentation Index > Fetch the complete documentation index at: https://docs.trio.com.br/llms.txt > Use this file to discover all available pages before exploring further. # Check boleto > Check a boleto barcode or line code ## OpenAPI ````yaml v2/api-reference/openapi.json POST /v2/out/boleto/check openapi: 3.0.0 info: title: Trio API v2 version: 2026-10-19.v2 servers: - url: https://api.sandbox.trio.com.br variables: {} - url: https://api.qa.trio.com.br variables: {} - url: https://api.trio.com.br variables: {} security: [] tags: [] paths: /v2/out/boleto/check: parameters: - description: >- Version of the v2 contract the client is written against. Each breaking change publishes a new version. example: 2026-10-19.v2 in: header name: Trio-Version required: true schema: enum: - 2026-10-19.v2 type: string x-struct: null x-validate: null - description: >- ID of another org to act on instead of the API key's own org. The key's org must have been granted access to it, and the request is refused with 403 FORBIDDEN otherwise. When that access or the API key is read-only, only GET and HEAD requests may carry it. When the target org requires mTLS, so does the request. Leave it out to act on the key's own org. in: header name: Trio-Target-Org-Id required: false schema: format: uuid type: string x-struct: null x-validate: null post: tags: - Payments (out) - Boleto summary: Check boleto description: Check a boleto barcode or line code operationId: TrioFoundationWeb.V2.Out.BoletoController.check parameters: [] requestBody: content: application/json: schema: $ref: '#/components/schemas/Check_boleto_request_params' description: Check boleto payload required: true responses: '200': content: application/json: schema: $ref: '#/components/schemas/V2_Check_Boleto_Response' description: Check '400': content: application/json: schema: $ref: '#/components/schemas/V2_error' description: >- Malformed request: a body that is not valid JSON (MALFORMED_REQUEST), or a Trio-Version header that is missing or not the current one (INVALID_TRIO_VERSION). '401': content: application/json: schema: $ref: '#/components/schemas/V2_error' description: Missing or invalid API key credentials (INVALID_CREDENTIALS). '403': content: application/json: schema: $ref: '#/components/schemas/V2_error' description: >- The API key may not do this (FORBIDDEN): for instance Trio-Target-Org-Id names an org it has no access to, or writes through a read-only access. '422': content: application/json: schema: $ref: '#/components/schemas/V2_error' description: >- Invalid input (INVALID_PARAMETER, REQUIRED_PARAMETER, or the code of the rule the request breaks). A request outside the operation's schema lists the offending fields in `errors`. '503': content: application/json: schema: $ref: '#/components/schemas/V2_error' description: >- A service needed to answer is unavailable (TRIO_SERVICE_UNAVAILABLE). callbacks: {} security: - authorization: [] components: schemas: Check_boleto_request_params: description: Check boleto request params example: code: '81620000001482115872026022712600000000001207' properties: code: description: Boleto barcode or digitable_line type: string x-struct: null x-validate: null required: - code title: Check_boleto_request_params type: object x-struct: >- Elixir.TrioFoundationWeb.Schemas.Banking.V1.Cashout.Boleto.BoletoSchema.CheckRequest x-validate: null V2_Check_Boleto_Response: description: A boleto checked before it is paid example: data: amount: amount: 100 currency: BRL barcode: '63394124500000777770001112265643601771960649' counterparty: name: ACME LTDA tax_number: '11222333000181' digitable_line: '63390001161226564360601640626576412451771960649' id: 019c9115-c950-a3bf-1052-5cb80f0d1a77 inserted_at: '2026-02-24T19:17:30.066277Z' original_amount: amount: 100 currency: BRL payer: name: John Doe tax_number: '***982247**' payment_limit_date: '2026-03-11' type: boleto updated_at: '2026-02-24T19:17:30.066277Z' properties: data: properties: amount: description: Amount due (valor total), after any discount, interest and fine properties: amount: description: Amount in cents type: integer x-struct: null x-validate: null currency: description: Currency type: string x-struct: null x-validate: null type: object x-struct: null x-validate: null barcode: description: Barcode type: string x-struct: null x-validate: null counterparty: description: Beneficiary that receives the payment properties: name: description: Name nullable: true type: string x-struct: null x-validate: null tax_number: description: >- Tax number. A CPF is masked (e.g. ***982247**); a CNPJ is published as is nullable: true type: string x-struct: null x-validate: null type: object x-struct: null x-validate: null digitable_line: description: Digitable line type: string x-struct: null x-validate: null id: description: Check ID format: uuid type: string x-struct: null x-validate: null inserted_at: description: When the check was made format: date-time type: string x-struct: null x-validate: null original_amount: description: Face value of the boleto (valor nominal) nullable: true properties: amount: description: Amount in cents type: integer x-struct: null x-validate: null currency: description: Currency type: string x-struct: null x-validate: null type: object x-struct: null x-validate: null payer: description: Payer the boleto was issued to properties: name: description: Name nullable: true type: string x-struct: null x-validate: null tax_number: description: >- Tax number. A CPF is masked (e.g. ***982247**); a CNPJ is published as is nullable: true type: string x-struct: null x-validate: null type: object x-struct: null x-validate: null payment_limit_date: description: Last day the boleto can be paid format: date nullable: true type: string x-struct: null x-validate: null type: description: Barcode type type: string x-struct: null x-validate: null updated_at: description: When the check was last updated format: date-time type: string x-struct: null x-validate: null type: object x-struct: null x-validate: null title: V2 Check_Boleto_Response type: object x-struct: >- Elixir.TrioFoundationWeb.Schemas.Banking.V2.Cashout.Boleto.BoletoSchema.CheckResponse x-validate: null V2_error: example: error: error_code: INVALID_PARAMETER error_message: 'Invalid parameters: /amount: Invalid integer. Got: string' errors: - field: /amount message: 'Invalid integer. Got: string' properties: error: properties: error_code: description: >- Stable UPPER_SNAKE identifier of the error, for programs and logs. Branch on this, not on the message. type: string x-struct: null x-validate: null error_message: description: Human readable explanation of the error. type: string x-struct: null x-validate: null errors: description: >- Only on INVALID_PARAMETER for a request outside the operation's schema: one entry per offending field. items: properties: field: description: JSON pointer to the field, e.g. /amount. type: string x-struct: null x-validate: null message: description: What is wrong with it. type: string x-struct: null x-validate: null required: - field - message type: object x-struct: null x-validate: null type: array x-struct: null x-validate: null required: - error_code - error_message type: object x-struct: null x-validate: null required: - error title: V2 error type: object x-struct: Elixir.TrioFoundationWeb.Schemas.HTTP.V2Error x-validate: null securitySchemes: authorization: scheme: basic type: http ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.