Capital.com Public API

Capital.com Public API General API

Server time, ping, and encryption-key utility endpoints.

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OpenAPI Specification

openapi: 3.1.0
info:
  title: Capital.com REST Accounts General API
  description: The Capital.com REST API provides programmatic access to the Capital.com trading engine, including positions, working orders, deal confirmations, account information, account switching, transaction history, account preferences (leverage, hedging mode), market navigation, instruments, and historical price data. Authentication uses an API key plus login credentials to create a session that returns CST and X-SECURITY-TOKEN headers, which expire after ten minutes of inactivity.
  version: v1
  contact:
    name: Capital.com API Support
    url: https://open-api.capital.com
servers:
- url: https://api-capital.backend-capital.com
  description: Capital.com production REST API server
- url: https://demo-api-capital.backend-capital.com
  description: Capital.com demo (sandbox) REST API server
security:
- apiKey: []
  sessionToken: []
  securityToken: []
tags:
- name: General
  description: Server time, ping, and encryption-key utility endpoints.
paths:
  /api/v1/time:
    get:
      operationId: getServerTime
      summary: Get Server Time
      description: Returns the current Capital.com server time.
      tags:
      - General
      responses:
        '200':
          description: Server time
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenericObject'
  /api/v1/ping:
    get:
      operationId: ping
      summary: Ping the Service
      description: Returns a simple OK response to verify connectivity.
      tags:
      - General
      responses:
        '200':
          description: Service is reachable.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/GenericObject'
components:
  schemas:
    GenericObject:
      type: object
      description: Generic JSON object response.
      additionalProperties: true
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: X-CAP-API-KEY
      description: Capital.com API key required for all calls.
    sessionToken:
      type: apiKey
      in: header
      name: CST
      description: Client session token returned after creating a session.
    securityToken:
      type: apiKey
      in: header
      name: X-SECURITY-TOKEN
      description: Security token returned after creating a session.
externalDocs:
  description: Capital.com Public API Documentation
  url: https://open-api.capital.com
x-generated-from: https://open-api.capital.com
x-generated-by: claude-crawl-2026-05-08