> ## Documentation Index > Fetch the complete documentation index at: https://docs.getmillwork.dev/llms.txt > Use this file to discover all available pages before exploring further. # Select proved model > Select a template-managed model only after its exact-arm proof completed. ## OpenAPI ````yaml /openapi/solverapi.openapi.json post /v1/tenant-model-selection openapi: 3.1.0 info: description: >- Run approved AI models under data, cost, and time limits. A cost limit can stop another provider call after recorded spend reaches the limit; it cannot reverse a call already in progress. Each finished run returns a receipt naming the selected model and provider without including the prompt or model output. Use the model catalog for what your organization can run now. Provider secrets never appear in API requests or responses. Retry a mutation with the same Idempotency-Key and the same request body. title: Millwork API version: 1.0.0 servers: - url: https://api.getmillwork.dev security: [] tags: - description: >- Submit work, check its status, cancel it, and read the result. The API calls each run an execution. name: Runs - description: A record of how a run was handled, without prompt or result content. name: Receipts - description: Models this organization can use now. name: Models - description: Providers and sign-in methods that can be connected. name: Available providers - description: Provider accounts connected to this organization. name: Provider connections - description: >- One-time browser steps for connecting a provider without sending its secret in an API request. name: Secure credential setup - description: Exact models and provider routes available through connected accounts. name: Provider models - description: Create, label, list, and revoke organization API keys. name: API keys - description: Organization members and invitations. name: Members - description: Metered usage and quota state. name: Usage - description: Account, plan and allowance snapshot. name: Account - description: Checkout, billing portal and billing profile. name: Billing - description: Webhook endpoints, deliveries and replay. name: Webhooks - description: Organization-scoped compliance export. name: Compliance export - description: >- Models, agents, and skills Millwork can choose for a run. The API calls each one an arm. name: Registered options - description: >- Checks that score output and can stop, retry, or choose another option within the request policy. name: Output checks - description: Routing proposals and their review lifecycle. name: Repair proposals - description: Aggregate evaluation trend and repair history. name: Evaluation - description: Publisher and release identity records for supported models. name: Model definitions - description: >- Protected provider-credential references. Secret material never appears in this API. name: Credential references - description: Dashboard browser sign-in, sign-up, session lookup, and sign-out. name: Browser access - description: Read-only demo session setup. name: Demo - description: Machine setup and the authenticated organization profile. name: Organizations - description: Eligible immutable starter presets and typed blockers. name: Tenant templates - description: Stateless starter plan resolution. No write and no provider call. name: Tenant template plans - description: Durable starter applications that resume instead of restarting. name: Tenant template applications paths: /v1/tenant-model-selection: post: tags: - tenant-model-selection summary: Select proved model description: >- Select a template-managed model only after its exact-arm proof completed. operationId: postTenantModelSelection parameters: - in: header name: Idempotency-Key required: true schema: minLength: 1 type: string requestBody: content: application/json: schema: additionalProperties: false properties: application_id: minLength: 1 type: string required: - application_id type: object required: true responses: '200': content: application/json: schema: additionalProperties: false properties: application_id: type: string managed_arm_id: type: string model_deployment_id: type: string proof_execution_id: type: string request_policy: additionalProperties: false properties: budget: additionalProperties: false properties: max_cost_usd: type: number max_runtime_s: type: integer required: - max_cost_usd - max_runtime_s type: object data_classes: items: enum: - public - sandbox - tenant_internal type: string type: array fallback_policy: enum: - none type: string mode: enum: - live type: string verifier: enum: - platform.output_presence type: string required: - mode - data_classes - budget - fallback_policy - verifier type: object request_preset_id: type: string selected_at: format: date-time type: string template_id: enum: - starter - pooled-open-model - byok-open-model type: string template_version: type: string updated_at: format: date-time type: string required: - application_id - template_id - template_version - managed_arm_id - model_deployment_id - request_preset_id - request_policy - proof_execution_id - selected_at - updated_at type: object description: Default Response 4XX: content: application/problem+json: schema: $ref: '#/components/schemas/Problem' description: >- Request failure in RFC 7807 format. The `type` field identifies the reason. Validation errors list affected fields. Rate and quota errors include `retry_after_s` and the `Retry-After` header. 5XX: content: application/problem+json: schema: $ref: '#/components/schemas/Problem' description: >- Server failure in RFC 7807 format. The response does not include internal error details. security: - bearerAuth: [] - sessionCookie: [] components: schemas: Problem: additionalProperties: false properties: detail: description: Short, safe, occurrence-specific description. Never a stack trace. type: string errors: description: Per-field validation failures (validation_failed only). items: additionalProperties: false properties: field: type: string message: type: string required: - field - message type: object type: array instance: description: Unique id for this occurrence, safe to quote in support requests. format: uuid type: string retry_after_s: description: >- Seconds to wait before retrying (rate_limited and quota_exceeded only; mirrored as the Retry-After header). type: integer status: description: HTTP status code, duplicated in the body per RFC 7807. type: integer title: description: Human-readable summary of the problem type. type: string type: description: Stable URI that identifies the error type. format: uri type: string required: - type - title - status - instance type: object securitySchemes: bearerAuth: description: Organization API key for application requests. scheme: bearer type: http sessionCookie: description: Dashboard browser session. Do not use this credential in an application. in: cookie name: solverapi_session type: apiKey ````