> ## 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. # Update channel settings > Patches the STR channel settings. Only the provided fields are updated; absent fields keep their current value. At least one field must be provided. Setting the participant ISPB requires an explicit 8-digit value (placeholders such as 00000000 are rejected). Idempotent — replaying the same X-Idempotency key with the same body returns the cached response. ## OpenAPI ````yaml en/openapi/v3-current/spb.yaml patch /v1/str/settings 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, 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: >- 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: the value-band table and 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: >- STR reports suite: synchronous, date-ranged aggregate reports (financial movement, rejected transactions, 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: 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/settings: patch: tags: - Settings summary: Update channel settings description: >- Patches the STR channel settings. Only the provided fields are updated; absent fields keep their current value. At least one field must be provided. Setting the participant ISPB requires an explicit 8-digit value (placeholders such as 00000000 are rejected). Idempotent — replaying the same X-Idempotency key with the same body returns the cached response. operationId: updateSettings parameters: - description: Idempotency key (primary). in: header name: X-Idempotency schema: description: Idempotency key (primary). type: string - description: Idempotency key (legacy alias for X-Idempotency). in: header name: X-Idempotency-Key schema: description: Idempotency key (legacy alias for X-Idempotency). type: string - description: Idempotency key TTL in seconds (overrides the configured default). in: header name: X-TTL schema: description: Idempotency key TTL in seconds (overrides the configured default). type: string requestBody: content: application/json: schema: $ref: '#/components/schemas/UpdateSettingsInput' required: true responses: '200': content: application/json: schema: $ref: '#/components/schemas/SettingsResponse' description: OK default: content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Error security: - BearerAuth: [] components: schemas: UpdateSettingsInput: additionalProperties: false properties: deliveryMode: description: >- Optional notification delivery mode to set: WEBHOOK, EVENT (streaming), or BOTH; left unchanged when omitted. examples: - WEBHOOK type: string ispb: description: >- Optional participant ISPB to set, the 8-digit BACEN institution identifier; left unchanged when omitted. examples: - '12345678' maxLength: 8 minLength: 8 pattern: ^[0-9]{8}$ type: string metadata: additionalProperties: {} description: >- Optional client-supplied settings metadata to merge; sensitive keys are redacted on read. type: object type: object SettingsResponse: additionalProperties: false properties: certDaysRemaining: description: >- Whole days remaining until the active certificate expires; absent when no certificate is configured. examples: - 365 format: int64 type: integer certificateExpiresAt: description: >- UTC RFC 3339 expiry timestamp of the active ICP-Brasil certificate; absent when no certificate is configured. examples: - '2027-05-04T18:30:00Z' format: date-time type: string channelStatus: description: 'SPB channel connectivity status: CONNECTED or PENDING_CONFIGURATION.' examples: - CONNECTED type: string deliveryMode: description: 'Notification delivery mode: WEBHOOK, EVENT (streaming), or BOTH.' examples: - WEBHOOK type: string ispb: description: >- Participant ISPB the settings belong to, the 8-digit BACEN institution identifier. examples: - '12345678' maxLength: 8 minLength: 8 pattern: ^[0-9]{8}$ type: string metadata: additionalProperties: {} description: >- Client-supplied settings metadata; sensitive keys and values are redacted before being returned. type: object readiness: $ref: '#/components/schemas/ReadinessSummary' description: >- Embedded readiness summary; present only when the readiness summary is available. webhooks: description: Configured webhook endpoints that receive STR notifications. items: $ref: '#/components/schemas/WebhookEndpointResponse' type: - array - 'null' required: - ispb - deliveryMode - channelStatus - webhooks 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 type: object ReadinessSummary: additionalProperties: false properties: blockers: description: >- Messages for conditions that block readiness; empty when there are none. examples: - - 'redis: connection refused' items: type: string type: - array - 'null' status: description: Aggregate readiness status. examples: - READY type: string warnings: description: >- Messages for non-blocking conditions that need attention; empty when there are none. examples: - - certificate expires in 12 days items: type: string type: - array - 'null' required: - status - blockers - warnings type: object WebhookEndpointResponse: additionalProperties: false properties: createdAt: description: UTC RFC 3339 timestamp at which the webhook endpoint was created. examples: - '2026-05-04T18:30:00Z' format: date-time type: string id: description: Server-assigned webhook endpoint UUID. examples: - 550e8400-e29b-41d4-a716-446655440000 format: uuid type: string isActive: description: Whether the endpoint is currently active and receiving deliveries. examples: - true type: boolean messageTypes: description: >- STR message types this endpoint subscribes to; empty means all types. examples: - - STR0004 - STR0007 items: type: string type: - array - 'null' metadata: additionalProperties: {} description: Client-supplied metadata for the webhook endpoint. type: object url: description: >- HTTPS URL that receives webhook deliveries for the subscribed message types. examples: - https://example.com/webhooks/str type: string required: - id - url - messageTypes - isActive - createdAt 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 securitySchemes: BearerAuth: bearerFormat: JWT description: JWT bearer token issued by the identity provider. scheme: bearer type: http ````