> ## 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. # Command a rediscount operation > Commands a redesconto do Banco Central — collateralised BCB lending against Selic-registered federal securities — and returns the operation id plus a PENDING state. One door serves the four operator-facing kinds and the server derives the RDC wire code: a contract borrows (RDC0002 intraday, RDC0003 one business day, RDC0004 tied to a Selic purchase, RDC0009 tied to a clearing-house collateral release, RDC0013 a consolidation), a payment gives it back (RDC0007 in cash, RDC0008 funded by selling the pledged securities), a conversion liquidates an open operation and opens a repriced replacement (RDC0005), and a cancellation withdraws a request still pending at Selic (RDC0014). The outcome arrives asynchronously on the response leg — and an ACCEPTED answer is NOT a settlement: Selic may hold the request for want of securities, in which case the operation is registered, no money has moved, and no settlement fact is emitted. Lerian SPB records what BACEN answers; it holds no position and performs no balance arithmetic. ## OpenAPI ````yaml /pt/openapi/v3-current/spb.yaml post /v1/str/operations/rediscounts openapi: 3.1.0 info: contact: email: contact@lerian.studio name: Lerian Studio url: https://lerian.studio description: >- OpenAPI 3.1 surface for Lerian SPB, the direct integration between the institution and the Brazilian Payment System (SPB) over the National Financial System Network (RSFN). It covers the Reserve Transfer System (STR): message registry and capability catalog, operation lifecycle (bank transfers, IBS repasses, liquidity transfers, returns and cancellations), reserve-account and schedule queries, alçada governance, SME and LDL operations, inbound quarantine triage, reconciliation, and event delivery. license: name: Lerian Studio General License title: Lerian SPB API version: 1.0.0 servers: - url: https://spb.sandbox.lerian.net security: [] tags: - description: Immutable audit-record trails for STR operations and lifecycle events. name: Audit - description: >- STR capability catalog describing supported message types and their constraints. name: Capabilities - description: >- ICP-Brasil certificate inventory with hot-reloadable rotation and activation. name: Certificates - description: >- STR compulsory-movement (RCO) family: the movements BACEN orders on a participant's reserve account, their answers and the periods they belong to. name: Compulsory - description: >- Maker-checker approval queue for emissions parked above their alçada band: list pending, sign (approve), and deny. name: EmissionApprovals - description: Webhook event-delivery records with retry control for failed dispatches. name: EventDeliveries - description: Operation event catalog enumerating the emitted domain event types. name: Events - description: >- Inbound GEN-family notice log (GEN0001 connectivity echo, GEN0004 transmission error, GEN0005 administrative notice). name: GenNotices - description: >- SPB alçada governance config: value-band table + per-message-type signature requirements, hot-reloaded at runtime. name: Governance - description: >- Read raw STR message status: list messages and read a single message by NUOp. name: Messages - description: Aggregated operational summaries and metrics across STR operations. name: OperationalIntelligence - description: >- STR operation lifecycle for bank transfers and IBS repasses, including returns and cancellations. name: Operations - description: >- Service readiness state covering startup self-probes and dependency health. name: Readiness - description: Reconciliation cases and the actions that resolve operation discrepancies. name: Reconciliation - description: >- Redesconto do Banco Central: collateralised intraday and one-business-day BCB lending against Selic-registered federal securities. One create door derives the nine RDC commands from four operator-facing kinds (contract, payment, conversion, cancellation), plus the two consultas over eligible-security prices and open positions. An accepted rediscount is not necessarily a settled one — Selic may hold the request for want of securities, and that middle state is reported as its own. name: Rediscounts - description: >- STR Relatórios suite: synchronous, date-ranged aggregate reports (movimento financeiro, transações rejeitadas, volumetria) over Lerian SPB's own transmission record. name: Reports - description: >- STR0013 reserve-account balance and STR0014 statement (extrato, message-mode) queries and their async results. name: ReserveQueries - description: >- GEN0019 participant responsável roster: full-replacement updates announced to BACEN. name: Responsibles - description: STR operating-window schedule governing when operations may be sent. name: Schedule - description: >- STR0001 single-party schedule queries (consulta de horários do STR) and their async STR0001R1 grid results. name: ScheduleQueries - description: >- STR lançamentos (SLB) family: the charges BACEN raises against this participant, the payments that settle them, payments to BACEN it never demanded, and the entry consultas over them. name: SLB - description: >- Reads over an IEME's conta correspondente a moeda eletrônica (CCME): SME0003 statement (extrato) queries and their async SME0003R1 results, plus the log of SME0001R2/SME0002R2/SME0004R2 movement advices the STR delivered about movements this rail did not command. name: SMEQueries - description: Runtime SPB configuration settings for the STR integration. name: Settings - description: Webhook endpoint registration and management for event delivery. name: Webhooks - description: >- Flow (mandatory order): certificate → readiness → connectivity-test → submit. Activate a certificate, confirm the rail reports ready, pass a connectivity test, then submit an operation. Each step is its own resource; a submit must not be attempted before readiness passes. name: onboarding - description: >- Flow (mandatory order): parent operation SETTLED → return/cancel. A return or cancellation is a sub-resource of a settled parent operation; the {operationId}/{endToEndID} path segment enforces the parent structurally. name: lifecycle paths: /v1/str/operations/rediscounts: post: tags: - Rediscounts summary: Command a rediscount operation description: >- Commands a redesconto do Banco Central — collateralised BCB lending against Selic-registered federal securities — and returns the operation id plus a PENDING state. One door serves the four operator-facing kinds and the server derives the RDC wire code: a contract borrows (RDC0002 intraday, RDC0003 one business day, RDC0004 tied to a Selic purchase, RDC0009 tied to a clearing-house collateral release, RDC0013 a consolidation), a payment gives it back (RDC0007 in cash, RDC0008 funded by selling the pledged securities), a conversion liquidates an open operation and opens a repriced replacement (RDC0005), and a cancellation withdraws a request still pending at Selic (RDC0014). The outcome arrives asynchronously on the response leg — and an ACCEPTED answer is NOT a settlement: Selic may hold the request for want of securities, in which case the operation is registered, no money has moved, and no settlement fact is emitted. Lerian SPB records what BACEN answers; it holds no position and performs no balance arithmetic. operationId: createRediscount parameters: - description: Idempotency key. Required on every mutation. in: header name: X-Idempotency required: true schema: description: Idempotency key. Required on every mutation. type: string - description: Idempotency key TTL in seconds. in: header name: X-TTL schema: description: Idempotency key TTL in seconds. type: string requestBody: content: application/json: schema: $ref: '#/components/schemas/CreateRediscountRequest' required: true responses: '202': content: application/json: schema: $ref: '#/components/schemas/RediscountAcceptedResponse' description: Accepted '400': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Bad Request '401': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Unauthorized '403': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Forbidden '409': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Conflict '413': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Request Entity Too Large '415': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Unsupported Media Type '422': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Unprocessable Entity '429': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Too Many Requests '500': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Internal Server Error '503': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Service Unavailable '504': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Gateway Timeout default: content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Error security: - BearerAuth: [] components: schemas: CreateRediscountRequest: additionalProperties: false properties: amount: description: >- Financed amount (VlrFinanc) in decimal reais, forwarded verbatim — never parsed or multiplied out of quantity x unit price. On a conversion this is the amount of the NEW operation; the original's return amount is returnAmount. A cancellation carries NO amount and supplying one is refused: the RDC0014 layout declares none. examples: - '1500000.00' type: string cedentAccount: description: Selic account of the securities cedent (CtCed). Contracts only. examples: - '123456789' type: string clearingHouseIspb: description: >- ISPB of the clearing house whose collateral release backs the operation (ISPBLDL). contractFlavour=collateralRelease only. examples: - '12345678' pattern: ^[0-9A-Z]{8}$ type: string contractFlavour: description: >- Which contract entry point (kind=contract only): intraday -> RDC0002, oneBusinessDay -> RDC0003, selicPurchase -> RDC0004, collateralRelease -> RDC0009, consolidation -> RDC0013. enum: - intraday - oneBusinessDay - selicPurchase - collateralRelease - consolidation examples: - intraday type: string kind: description: >- Operator-facing command kind. The server derives the RDC wire code from this plus contractFlavour/paymentForm: contract -> RDC0002/0003/0004/0009/0013, payment -> RDC0007/0008, conversion -> RDC0005, cancellation -> RDC0014. enum: - contract - payment - conversion - cancellation examples: - contract type: string maturityDate: description: Maturity of the pledged security (DtVenc). Contracts only. examples: - '2027-01-01' type: string originalHandle: description: >- BACEN handle (NumCtrlRDCOr) of the operation this command acts on — the NumCtrlRDC its contract response returned. Required by a payment, a conversion and a cancellation; refused on a contract, which opens an operation rather than acting on one. examples: - RDC20260615000000001 type: string paymentForm: description: >- How the payment is funded (kind=payment only): cash -> RDC0007 (own reserves), sale -> RDC0008 (proceeds of selling the pledged securities, which is why only this form carries selicTradeKey). enum: - cash - sale examples: - cash type: string paymentType: description: >- Payment form (TpPgto), a closed BACEN domain distinguishing a partial payment from a total one. Payments only. Partial payment is first-class and repeatable: the response reports the remaining balance and the operation stays open until it reaches zero. examples: - T type: string preferenceLevel: description: >- Optional settlement priority (NivelPref): A = alta, N = normal. Payments and conversions. enum: - A - 'N' examples: - 'N' type: string recontractTitleQuantity: description: Quantity of the NEW operation a conversion opens. Conversions only. examples: - '1000' type: string recontractUnitPrice: description: >- Unit price of the NEW operation a conversion opens (Grupo_RDC0005_ConvrRecontr). Conversions only. examples: - '1052.00000000' type: string returnAmount: description: >- Amount of the ORIGINAL operation's return leg on a conversion. Kept separate from amount so neither half of a conversion can borrow the other's numbers. Conversions only. examples: - '1051000.00' type: string returnTitleQuantity: description: >- Quantity of the ORIGINAL operation's return leg on a conversion (Grupo_RDC0005_VoltaOpOr). Conversions only. examples: - '1000' type: string returnUnitPrice: description: >- Unit price the securities return at (PURet) — same eight-decimal price facet as unitPrice. Payments and conversions. examples: - '1051.00000000' type: string selicOperation: description: >- Selic operation number (NumOpSEL) of THIS frame — mandatory on all nine commands. On a payment it is that payment leg's own number, not the contract's: an intermediate partial takes a new number from the institution's daily range while the last one takes back the number the rediscount was granted under. examples: - '000123' type: string selicTradeKey: description: >- Selic trade key (ChASEL) binding the rediscount to what backs it. Required by contractFlavour=selicPurchase (the purchase), contractFlavour=collateralRelease (the câmara release) and paymentForm=sale (the sale funding the payment); refused everywhere else. examples: - '000999' type: string titleId: description: >- Selic identifier of the security being pledged (IdentdTitSEL). Contracts only. examples: - '100000' type: string titleQuantity: description: >- Number of securities pledged (contracts) or returned (payments) — QtdTit. examples: - '1000' type: string unitPrice: description: >- Unit price of the pledged security (PU) — a PRICE with eight decimal places, not a money amount. Contracts only. examples: - '1050.12345678' type: string required: - kind - selicOperation type: object RediscountAcceptedResponse: additionalProperties: false properties: amount: description: >- Commanded amount, verbatim. A cancellation reports "0": the RDC0014 layout carries no amount, so this is a structural zero meaning the command moves no value — never a claim about the operation being cancelled. examples: - '1500000.00' type: string correlationId: description: Request-scoped correlation identifier echoing X-Request-ID. examples: - req-7a3f9c2e type: string id: description: >- Rediscount operation UUID. Poll GET /v1/str/operations/rediscounts/{operationId} with it. examples: - 9f1c2d3e-4b5a-6c7d-8e9f-0a1b2c3d4e5f format: uuid type: string kind: description: Operator-facing command kind, echoed back. examples: - contract type: string nuOp: description: >- SFN operation number stamped on the transmitted frame. It is the handle the response leg correlates on. examples: - '12345678202606150000014' pattern: ^[0-9A-Z]{8}[0-9]{15}$ type: string status: description: >- Lifecycle state. Always PENDING here: the frame is on the wire and BACEN has said nothing yet. examples: - PENDING type: string wireCode: description: RDC message code the server derived and put on the wire. examples: - RDC0002 type: string required: - id - kind - wireCode - status - amount - correlationId type: object Detail: additionalProperties: false properties: code: description: >- Stable, machine-readable domain error code scoped to the emitting service (format: -NNNN). type: string correlationId: description: Request-scoped correlation identifier echoing X-Request-ID. examples: - req-7a3f9c2e 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. required: - correlationId 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 ````