Capital.com Public API

Capital.com is a European trading platform offering CFDs across shares, indices, commodities, forex, and cryptocurrencies. The Capital.com Public API provides direct access to the trading engine for automated strategies, giving programmatic control of positions, working orders, account preferences, and historical and streaming market data. A companion WebSocket API streams real-time prices and OHLC candles for up to 40 concurrent instruments.

Capital.com Public API publishes 8 APIs on the APIs.io network, including Capital.com WebSocket API, Accounts API, General API, and 5 more. Tagged areas include CFD, Commodities, Cryptocurrency, Financial, and Forex.

The Capital.com Public API catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Capital.com Public API’s developer surface includes authentication, documentation, sandbox, support, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

52.2/100 developing ▬ flat Agent 36/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

8 APIs

CFDCommoditiesCryptocurrencyFinancialForexIndicesMarket DataSharesStreamingTradingWebSocket

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 52.2/100 · developing

Contract Quality 16.4 / 25

Developer Ergonomics 6.5 / 20

Commercial Clarity 12.1 / 20

Operational Transparency 4.8 / 13

Governance 5.7 / 12

Discoverability 6.5 / 10

Agent readiness — 36/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/capital-com-public-api: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 8

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Capital Com Public Api Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Get Started 1

Portal, sign-up, and the first successful call

Sandbox

Sandbox

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: capital-com-public-api
url: https://raw.githubusercontent.com/api-evangelist/capital-com-public-api/refs/heads/main/apis.yml
name: Capital.com Public API
description: Capital.com is a European trading platform offering CFDs across shares, indices, commodities, forex, and cryptocurrencies.
  The Capital.com Public API provides direct access to the trading engine for automated strategies, giving programmatic control
  of positions, working orders, account preferences, and historical and streaming market data. A companion WebSocket API streams
  real-time prices and OHLC candles for up to 40 concurrent instruments.
type: Index
kind: company
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/capital-com-public-api.png
tags:
- CFD
- Commodities
- Cryptocurrency
- Financial
- Forex
- Indices
- Market Data
- Shares
- Streaming
- Trading
- WebSocket
created: '2024-12-03'
modified: '2026-05-29'
specificationVersion: '0.19'
apis:
- aid: capital-com-public-api:capital-com-websocket-api
  name: Capital.com WebSocket API
  description: The Capital.com WebSocket API streams real-time market data, supporting up to 40 concurrent instruments and
    OHLC candlestick subscriptions for low-latency trading applications.
  humanURL: https://open-api.capital.com
  tags:
  - Market Data
  - Streaming
  - Trading
  - WebSocket
  properties:
  - type: Documentation
    url: https://open-api.capital.com
  - type: AsyncAPI
    url: asyncapi/capital-com-public-api-asyncapi.yml
  x-features:
  - Real-time price streaming via WebSocket
  - Up to 40 concurrent instrument subscriptions
  - OHLC candlestick streaming
  - Low-latency market data for trading systems
  x-use-cases:
  - Low-latency automated trading execution
  - Real-time market dashboards
  - Streaming-data backtesting and replay
- aid: capital-com-public-api:capital-com-public-api-accounts-api
  name: Capital.com Public API Accounts API
  description: Account information, preferences, and demo top-up.
  humanURL: https://open-api.capital.com
  tags:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/capital-com-public-api-accounts-api-openapi.yml
  - type: Documentation
    url: https://open-api.capital.com
  - type: Base URL
    url: https://api-capital.backend-capital.com/
  - type: Sandbox
    url: https://demo-api-capital.backend-capital.com/
  - type: Authentication
    url: https://open-api.capital.com
- aid: capital-com-public-api:capital-com-public-api-general-api
  name: Capital.com Public API General API
  description: Server time, ping, and encryption-key utility endpoints.
  humanURL: https://open-api.capital.com
  tags:
  - General
  properties:
  - type: OpenAPI
    url: openapi/capital-com-public-api-general-api-openapi.yml
  - type: Documentation
    url: https://open-api.capital.com
  - type: Base URL
    url: https://api-capital.backend-capital.com/
  - type: Sandbox
    url: https://demo-api-capital.backend-capital.com/
  - type: Authentication
    url: https://open-api.capital.com
- aid: capital-com-public-api:capital-com-public-api-history-api
  name: Capital.com Public API History API
  description: Account activity and transaction history.
  humanURL: https://open-api.capital.com
  tags:
  - History
  properties:
  - type: OpenAPI
    url: openapi/capital-com-public-api-history-api-openapi.yml
  - type: Documentation
    url: https://open-api.capital.com
  - type: Base URL
    url: https://api-capital.backend-capital.com/
  - type: Sandbox
    url: https://demo-api-capital.backend-capital.com/
  - type: Authentication
    url: https://open-api.capital.com
- aid: capital-com-public-api:capital-com-public-api-markets-api
  name: Capital.com Public API Markets API
  description: Market navigation and instrument lookup.
  humanURL: https://open-api.capital.com
  tags:
  - Markets
  properties:
  - type: OpenAPI
    url: openapi/capital-com-public-api-markets-api-openapi.yml
  - type: Documentation
    url: https://open-api.capital.com
  - type: Base URL
    url: https://api-capital.backend-capital.com/
  - type: Sandbox
    url: https://demo-api-capital.backend-capital.com/
  - type: Authentication
    url: https://open-api.capital.com
- aid: capital-com-public-api:capital-com-public-api-positions-api
  name: Capital.com Public API Positions API
  description: Operations for opening, updating, and closing trading positions.
  humanURL: https://open-api.capital.com
  tags:
  - Positions
  properties:
  - type: OpenAPI
    url: openapi/capital-com-public-api-positions-api-openapi.yml
  - type: Documentation
    url: https://open-api.capital.com
  - type: Base URL
    url: https://api-capital.backend-capital.com/
  - type: Sandbox
    url: https://demo-api-capital.backend-capital.com/
  - type: Authentication
    url: https://open-api.capital.com
- aid: capital-com-public-api:capital-com-public-api-session-api
  name: Capital.com Public API Session API
  description: Operations for creating, switching, and ending API sessions.
  humanURL: https://open-api.capital.com
  tags:
  - Session
  properties:
  - type: OpenAPI
    url: openapi/capital-com-public-api-session-api-openapi.yml
  - type: Documentation
    url: https://open-api.capital.com
  - type: Base URL
    url: https://api-capital.backend-capital.com/
  - type: Sandbox
    url: https://demo-api-capital.backend-capital.com/
  - type: Authentication
    url: https://open-api.capital.com
- aid: capital-com-public-api:capital-com-public-api-working-orders-api
  name: Capital.com Public API Working Orders API
  description: Operations for managing limit and stop working orders.
  humanURL: https://open-api.capital.com
  tags:
  - Working Orders
  properties:
  - type: OpenAPI
    url: openapi/capital-com-public-api-working-orders-api-openapi.yml
  - type: Documentation
    url: https://open-api.capital.com
  - type: Base URL
    url: https://api-capital.backend-capital.com/
  - type: Sandbox
    url: https://demo-api-capital.backend-capital.com/
  - type: Authentication
    url: https://open-api.capital.com
common:
- type: AgenticAccess
  url: agentic-access/capital-com-public-api-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/capital-com-public-api-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/capital-com-public-api-domain-security.yml
- type: Authentication
  url: authentication/capital-com-public-api-authentication.yml
- type: GitHubOrganization
  url: https://github.com/capital-com-sv
- type: LinkedIn
  url: https://www.linkedin.com/company/capitalcom
- type: Website
  url: https://capital.com/
- type: Documentation
  url: https://open-api.capital.com
- type: Sandbox
  url: https://demo-api-capital.backend-capital.com/
- type: PrivacyPolicy
  url: https://capital.com/privacy-policy
- type: TermsOfService
  url: https://capital.com/terms-and-conditions
- type: Support
  url: https://capital.com/help
- type: Blog
  url: https://capital.com/news-and-analysis
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Capital.com Public API

Kin Score

APIs 8

Capital.com WebSocket API

Capital.com Public API Accounts API

Capital.com Public API General API

Capital.com Public API History API

Capital.com Public API Markets API

Capital.com Public API Positions API

Capital.com Public API Session API

Capital.com Public API Working Orders API

Open Collections 1

Capital.com REST API

Pricing Plans 1

Capital Com Public Api Plans Pricing

Rate Limits 1

Capital Com Public Api Rate Limits

FinOps 1

Capital Com Public Api Finops

Event Specifications 1

Capital.com WebSocket Streaming API

Spectral Rules 1

Capital.com Public API API Rules

Security Posture 3

Capital Com Public Api Authentication

Capital Com Public Api Domain Security

Capital Com Public Api Vulnerability Disclosure

Agentic Access 1

Capital Com Public Api Agentic Access

Resources