> ## Documentation Index
> Fetch the complete documentation index at: https://docs.filefeed.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Validate data against a schema



## OpenAPI

````yaml /api-reference/openapi.json post /schemas/{schemaId}/validate
openapi: 3.0.3
info:
  title: FileFeed API
  version: '2026-05-25'
  description: >-
    Official FileFeed REST API for connections, pipelines, schemas, pipeline
    runs, webhooks, outbound uploads, documents, files, and notifications.
    Date-based API versioning is controlled by the `FileFeed-Version` request
    header (default `2024-09-01`; latest `2026-05-25`); this document describes
    the `2026-05-25` shape.
servers:
  - url: https://api.sftpsync.io
security:
  - ApiKeyAuth: []
tags:
  - name: Connections
  - name: Pipelines
  - name: Schemas
  - name: Pipeline Runs
  - name: Webhooks
  - name: Outbound Uploads
  - name: Documents
  - name: Files
  - name: Notifications
  - name: Clients (deprecated)
paths:
  /schemas/{schemaId}/validate:
    post:
      tags:
        - Schemas
      summary: Validate data against a schema
      parameters:
        - name: schemaId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ValidateDataRequest'
      responses:
        '200':
          description: Validation result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationResult'
components:
  schemas:
    ValidateDataRequest:
      type: object
      properties:
        data:
          type: object
          additionalProperties: true
      required:
        - data
    ValidationResult:
      type: object
      properties:
        valid:
          type: boolean
        errors:
          type: array
          description: Raw AJV error objects (present when `valid` is false).
          items:
            type: object
            properties:
              instancePath:
                type: string
              schemaPath:
                type: string
              keyword:
                type: string
              params:
                type: object
                additionalProperties: true
              message:
                type: string
      required:
        - valid
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key

````