---
title: "Error"
url: "https://nexora.apim.eu/apis/cost-estimation/versions/26a287d6-a67c-4989-b0bd-79a9db45597a/schemas/Error"
---

> Full API specification: https://nexora.apim.eu/apis/cost-estimation/versions/26a287d6-a67c-4989-b0bd-79a9db45597a.md

# Error

Uniform error format across all Nexora AI APIs.

## OpenAPI definition

```yaml
openapi: 3.0.3
info:
  title: Cost & ROI Estimation
  version: 1.0.0
servers:
  - url: https://api.nexora.example/v1
    description: Production
  - url: https://sandbox.api.nexora.example/v1
    description: Sandbox
components:
  schemas:
    ErrorDetail:
      type: object
      properties:
        field:
          type: string
          example: basis.comparables_count
        reason:
          type: string
          example: missing
    Error:
      type: object
      description: Uniform error format across all Nexora AI APIs.
      required:
        - code
        - message
      properties:
        code:
          type: string
          example: validation_failed
        message:
          type: string
          example: Too few comparable deployments are available for this business unit.
        details:
          type: array
          items:
            $ref: "#/components/schemas/ErrorDetail"
```