> ## 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. # Settle a refund with an aggregated block devolution (Phase 1) > Initiates exactly one aggregated devolution for all PENDING blocks linked to the refund infraction report and changes those blocks together to SETTLING. Processing is selected automatically from the infraction operation type and contested transaction format. The refund remains OPEN during this phase. The request has no body. A successful SPI response reports SETTLING, or SETTLED for an idempotent replay; rejected or unexpected outcomes return an error. Only the requesting participant tenant may settle its own refund. ## OpenAPI ````yaml en/openapi/v3-current/pix-lerian-dict.yaml POST /dict/refunds/{id}/settle openapi: 3.1.0 info: contact: name: Lerian Studio url: https://lerian.studio description: >- Public API for Pix keys, claims, fraud markers, infraction reports, and MED funds recovery. license: name: Elastic License 2.0 url: https://www.elastic.co/licensing/elastic-license title: Pix Lerian — DICT version: release-candidate servers: - url: https://api.example.com/dict-hub/v1 description: >- Replace the example host with the URL provided during environment onboarding. security: - BearerAuth: [] tags: - description: Register, retrieve, list, update, and remove Pix keys. name: Entries - description: Look up Pix keys and check whether keys exist in the DICT directory. name: Keys - description: Manage ownership and portability claims for Pix keys. name: Claims - description: Manage participant-scoped MED 2.0 funds recoveries. name: Funds Recoveries - description: Manage MED 2.0 infraction reports for the authenticated organization. name: Infraction Reports - description: Create, query, cancel, and settle MED 2.0 refunds. name: Refunds - description: Create, query, list, and cancel DICT fraud markers. name: Fraud Markers paths: /dict/refunds/{id}/settle: post: tags: - Refunds summary: Settle a refund with an aggregated block devolution (Phase 1) description: >- Initiates exactly one aggregated devolution for all PENDING blocks linked to the refund infraction report and changes those blocks together to SETTLING. Processing is selected automatically from the infraction operation type and contested transaction format. The refund remains OPEN during this phase. The request has no body. A successful SPI response reports SETTLING, or SETTLED for an idempotent replay; rejected or unexpected outcomes return an error. Only the requesting participant tenant may settle its own refund. operationId: settleRefund parameters: - description: Client-generated key used to retry exactly the same request safely. in: header name: Idempotency-Key required: true schema: maxLength: 64 minLength: 1 type: string description: >- Client-generated key used to retry exactly the same request safely. example: pix-demo-20260903-000001 - description: Refund internal ID (UUID format) in: path name: id required: true schema: description: Refund internal ID (UUID format) examples: - 018f8c1d-1234-7abc-9def-000000000010 type: string example: 01960718-a213-2435-6078-901234567123 - description: >- Best-effort business correlation id (observability only; never fabricated). in: header name: X-Correlation-Id schema: description: >- Best-effort business correlation id (observability only; never fabricated). type: string example: 019606a1-3b4c-7d8e-9f01-234567890abc responses: '202': content: application/json: schema: $ref: '#/components/schemas/SettleRefundView' examples: fictitiousExample: summary: Fictitious example value: alreadySettled: '50.00' blocks: - amount: '120.00' lockId: b0f5c2a1-9e3d-4c7a-8f21-1a2b3c4d5e6f spiBlockId: 7c9a1b2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d blocksStatus: SETTLING endToEndId: 019606a1-3b4c-7d8e-9f01-234567890abc operationType: ROOT originalAmount: '200.00' refundId: 018f8c1d-1234-7abc-9def-000000000010 settleAmount: '150.00' settleReason: FR01 settleType: REFUND settled: false status: OPEN surplusAmount: '50.00' description: Accepted '400': content: application/json: example: code: PIX-0030 title: Idempotency Key Required message: >- The Idempotency-Key header is required for this operation and must be within the accepted length. schema: $ref: '#/components/schemas/LegacyErrorEnvelope' description: >- Idempotency-Key absent or longer than 64 bytes (PIX-0030). Legacy {code,title,message} envelope, NOT problem+json. '412': content: application/json: example: code: PIX-0031 title: Idempotency Key Conflict message: The Idempotency-Key was already used with a different request. schema: $ref: '#/components/schemas/LegacyErrorEnvelope' description: >- Idempotency-Key replayed with a divergent request -- a different method, URL (including the path parameter), body, or identity header among X-Account-Id / X-Reason / X-End-To-End-Id (PIX-0031). Legacy {code,title,message} envelope, NOT problem+json. default: content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Error x-codeSamples: - lang: bash label: cURL with fictitious data source: |- curl --request POST \ --url https://api.example.com/dict-hub/v1/dict/refunds/01960718-a213-2435-6078-901234567123/settle \ --header 'Authorization: Bearer demo-access-token' \ --header 'Idempotency-Key: pix-demo-20260903-000001' \ --header 'X-Correlation-Id: 019606a1-3b4c-7d8e-9f01-234567890abc' components: schemas: SettleRefundView: additionalProperties: false properties: alreadySettled: examples: - '50.00' type: string blocks: items: $ref: '#/components/schemas/SettleBlockView' type: - array - 'null' blocksStatus: enum: - SETTLING - PENDING - SETTLED examples: - SETTLING type: string endToEndId: type: string operationType: enum: - ROOT - SUBSEQUENT - UNKNOWN examples: - ROOT type: string originalAmount: examples: - '200.00' type: string refundId: examples: - 018f8c1d-1234-7abc-9def-000000000010 type: string settleAmount: examples: - '150.00' type: string settleReason: examples: - FR01 type: string settleType: enum: - REFUND - MANUAL examples: - REFUND type: string settled: examples: - false type: boolean status: enum: - OPEN - CLOSED - CANCELLED examples: - OPEN type: string surplusAmount: examples: - '50.00' type: string required: - refundId - status - operationType - originalAmount - alreadySettled - blocksStatus type: object LegacyErrorEnvelope: additionalProperties: false properties: code: description: PIX-XXXX error code type: string message: description: Human-readable error message type: string title: description: Short error title type: string required: - code - title - message type: object Detail: additionalProperties: false properties: code: description: >- Stable, machine-readable domain error code scoped to the emitting service (format: -NNNN). examples: - ERR-0001 type: string detail: description: >- A human-readable explanation specific to this occurrence of the problem. examples: - Property foo is required but is missing. type: string errors: description: Optional list of individual error details items: $ref: '#/components/schemas/ErrorDetail' type: - array - 'null' instance: description: >- A URI reference that identifies the specific occurrence of the problem. examples: - https://example.com/error-log/abc123 format: uri type: string status: description: HTTP status code examples: - 400 format: int64 type: integer title: description: >- A short, human-readable summary of the problem type. This value should not change between occurrences of the error. examples: - Bad Request type: string type: default: about:blank description: A URI reference to human-readable documentation for the error. examples: - https://example.com/errors/example format: uri type: string upstream: $ref: '#/components/schemas/Upstream' description: >- RFC 9457 extension member: the error a proxied third-party provider reported. Absent unless the emitting service explicitly surfaced one. type: object SettleBlockView: additionalProperties: false properties: amount: examples: - '120.00' type: string lockId: examples: - b0f5c2a1-9e3d-4c7a-8f21-1a2b3c4d5e6f type: string spiBlockId: examples: - 7c9a1b2d-3e4f-5a6b-7c8d-9e0f1a2b3c4d type: string required: - lockId - spiBlockId - amount type: object ErrorDetail: additionalProperties: false properties: location: description: >- Where the error occurred, e.g. 'body.items[3].tags' or 'path.thing-id' type: string message: description: Error message text type: string value: description: The value at the given location type: object Upstream: additionalProperties: false properties: code: description: The upstream provider's own error code, verbatim. examples: - E4001 type: string message: description: >- The upstream provider's own error message, verbatim (bounded, never its raw response body). examples: - account not found at provider type: string type: object securitySchemes: BearerAuth: bearerFormat: JWT description: JWT bearer token issued by the identity provider. scheme: bearer type: http ````