> ## Documentation Index > Fetch the complete documentation index at: https://docs.opennous.cloud/llms.txt > Use this file to discover all available pages before exploring further. # Train from closed deals > Train the ICP model on real won and lost deals. Nous enriches each domain, links the contacts it already has there, learns the signals that separate wins from losses, and rescores open accounts. Up to 40 deals per list. Trains the ICP model on deals you actually won and lost, then rescores open accounts. Pass domains, or objects with `amount`, `currency`, and `closed_at`. One deal is enough to start. Won and lost together give the clearest signal. ## OpenAPI ````yaml POST /v2/icp/closed-deals openapi: 3.1.0 info: title: OpenNous REST API version: 2.0.0 description: >- Read and write the OpenNous revenue context graph over HTTP. Authenticate with a workspace API key. servers: - url: https://api.opennous.cloud description: OpenNous Cloud security: - bearerAuth: [] - apiKeyHeader: [] tags: - name: People - name: Accounts - name: Deals - name: Notes - name: Attention - name: Insights - name: Enrich & score - name: Organization - name: Workflows - name: Webhooks description: >- Subscribe to events and have them pushed to your own stack, with the account record attached. - name: Usage paths: /v2/icp/closed-deals: post: tags: - Organization summary: Train from closed deals description: >- Train the ICP model on real won and lost deals. Nous enriches each domain, links the contacts it already has there, learns the signals that separate wins from losses, and rescores open accounts. Up to 40 deals per list. operationId: trainIcp requestBody: required: true content: application/json: schema: type: object properties: won: type: array items: $ref: '#/components/schemas/ClosedDeal' lost: type: array items: $ref: '#/components/schemas/ClosedDeal' example: won: - acme.com - domain: globex.com amount: 48000 currency: USD closed_at: '2026-08-14' lost: - initech.com responses: '201': description: What the model learned. content: application/json: schema: type: object properties: ok: type: boolean won: type: integer lost: type: integer enriched: type: integer description: Companies enriched. surfaced: type: integer description: New signals added to the model. mode: type: string enum: - lift - winners description: >- `lift` compares won against lost. `winners` uses won deals only. linked: type: array items: type: object properties: domain: type: string name: type: string discovered: type: array items: type: object properties: label: type: string weight: type: number note: type: string example: ok: true won: 2 lost: 1 enriched: 3 surfaced: 2 mode: lift linked: - domain: acme.com name: Sarah Chen discovered: - label: Employees 200-500 weight: 15 note: on 2 of your 2 won deals '400': description: No deals in the body. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: need_more_deals message: Give at least one closed-won or closed-lost domain. '401': $ref: '#/components/responses/Unauthorized' '402': $ref: '#/components/responses/UpgradeRequired' '403': $ref: '#/components/responses/ReadOnlyKey' '429': $ref: '#/components/responses/RateLimited' '500': $ref: '#/components/responses/InternalError' components: schemas: ClosedDeal: oneOf: - type: string description: A bare company domain. example: acme.com - type: object required: - domain properties: domain: type: string amount: type: number description: Deal value in major units. currency: type: string closed_at: type: string format: date description: When it closed. Future dates are clamped to today. Error: type: object description: >- Every error response. `error` is a stable machine code. Some errors add fields such as `detail`, `supported`, `max`, or `reason`. required: - error properties: error: type: string description: Machine-readable error code. detail: type: string description: Human-readable explanation, when there is one. additionalProperties: true responses: Unauthorized: description: Missing, unknown, or expired API key. content: application/json: schema: $ref: '#/components/schemas/Error' examples: missing: summary: api_key_required value: error: api_key_required invalid: summary: invalid_api_key value: error: invalid_api_key expired: summary: api_key_expired value: error: api_key_expired detail: >- This API key has expired. Create or rotate a key to get a fresh one. UpgradeRequired: description: The workspace is past its monthly operations limit and grace window. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: upgrade_required reason: ops_limit_reached current_plan: starter upgrade_url: /settings?section=billing ReadOnlyKey: description: A read-only key called a write endpoint. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: read_only_key detail: >- This API key is read-only — it can read context but cannot record, modify, connect, or send. Use a read/write key for write operations. RateLimited: description: More than 600 requests in a minute on this key. headers: RateLimit-Limit: schema: type: integer description: Requests allowed per window. RateLimit-Remaining: schema: type: integer description: Requests left in the window. RateLimit-Reset: schema: type: integer description: Seconds until the window resets. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: rate_limited InternalError: description: Unexpected server error. content: application/json: schema: $ref: '#/components/schemas/Error' example: error: internal_error securitySchemes: bearerAuth: type: http scheme: bearer description: Workspace API key. Create one in **Settings → API keys**. apiKeyHeader: type: apiKey in: header name: X-API-Key description: The same key, sent as a header. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.