StoneX

StoneX Group is a global financial services organization that provides execution, risk management, market intelligence, and post-trade services across asset classes and markets to institutional, commercial, and retail clients. StoneX offers REST APIs for payments, clearing, and futures trading with OAuth 2.0 authentication.

StoneX publishes 6 APIs on the APIs.io network, including Accounts API, Authentication API, Documents API, and 3 more. Tagged areas include Finance, Financial-Services, Payments, Clearing, and Futures.

The StoneX catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

StoneX’s developer surface includes authentication, documentation, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

32.0/100 thin ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessEnterpriseSelf serve

8 APIs

Finance Financial-Services Payments Clearing Futures Trading Risk Management

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 32.0/100 · thin

Contract Quality 13.1 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 2.2 / 17

Operational Transparency 0.9 / 11

Contract Governance 1.4 / 10

Discoverability 5.5 / 9

Regulatory Posture 5.4 / 15

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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 0 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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/stonex: 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.

Stonex Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Examples 1

Example request and response payloads for these APIs.

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

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

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: stonex
name: StoneX
description: StoneX Group is a global financial services organization that provides execution, risk management, market intelligence,
  and post-trade services across asset classes and markets to institutional, commercial, and retail clients. StoneX offers
  REST APIs for payments, clearing, and futures trading with OAuth 2.0 authentication.
type: Index
accessModel:
  pricing: enterprise
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Enterprise · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stonex.png
tags:
- Finance
- Financial-Services
- Payments
- Clearing
- Futures
- Trading
- Risk Management
tags_raw:
- Finance
- Financial Services
- Payments
- Clearing
- Futures
- Trading
- Risk Management
url: https://raw.githubusercontent.com/api-evangelist/stonex/refs/heads/main/apis.yml
created: '2026-05-02'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: stonex:stonex-gf-api
  name: StoneX GF Futures API
  description: The StoneX GF (GAIN Futures) API provides institutional-grade access to futures trading including market data,
    order management, account and position tracking, margin calculations, contract lookup, and real-time price feeds for futures
    contracts.
  humanURL: https://futures-media.stonex.com/gfapi/index.html
  tags:
  - Futures
  - Trading
  - Market Data
  - Institutional
  properties:
  - type: Documentation
    url: https://futures-media.stonex.com/gfapi/index.html
- aid: stonex:stonex-developer-portal
  name: StoneX Developer Portal
  description: The StoneX Developer Storefront provides access to all StoneX API products with subscription keys, documentation,
    and developer resources for integrating with StoneX financial services.
  humanURL: https://developer.stonex.com/
  tags:
  - Developer Portal
  - API Management
  properties:
  - type: Documentation
    url: https://developer.stonex.com/documentation
  - type: Products
    url: https://developer.stonex.com/products
- aid: stonex:stonex-accounts-api
  name: StoneX Accounts API
  description: Account information and management.
  humanURL: https://docs.payments.stonex.io/
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/stonex-accounts-api-openapi.yml
  - type: Documentation
    url: https://docs.payments.stonex.io/
  - type: GettingStarted
    url: https://docs.payments.stonex.io/docs/quickstart-guide-1
  - type: Documentation
    url: https://docs.clearing.stonex.com/docs
  - type: GettingStarted
    url: https://docs.clearing.stonex.com/docs/getting-started/introduction
- aid: stonex:stonex-authentication-api
  name: StoneX Authentication API
  description: OAuth 2.0 token management.
  humanURL: https://docs.payments.stonex.io/
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/stonex-authentication-api-openapi.yml
  - type: Documentation
    url: https://docs.payments.stonex.io/
  - type: GettingStarted
    url: https://docs.payments.stonex.io/docs/quickstart-guide-1
  - type: Documentation
    url: https://docs.clearing.stonex.com/docs
  - type: GettingStarted
    url: https://docs.clearing.stonex.com/docs/getting-started/introduction
- aid: stonex:stonex-documents-api
  name: StoneX Documents API
  description: Document retrieval and management.
  humanURL: https://docs.payments.stonex.io/
  tags:
  - Documents
  properties:
  - type: OpenAPI
    url: openapi/stonex-documents-api-openapi.yml
  - type: Documentation
    url: https://docs.payments.stonex.io/
  - type: GettingStarted
    url: https://docs.payments.stonex.io/docs/quickstart-guide-1
  - type: Documentation
    url: https://docs.clearing.stonex.com/docs
  - type: GettingStarted
    url: https://docs.clearing.stonex.com/docs/getting-started/introduction
- aid: stonex:stonex-fx-rates-api
  name: StoneX FX Rates API
  description: Foreign exchange rate queries.
  humanURL: https://docs.payments.stonex.io/
  tags:
  - FX Rates
  properties:
  - type: OpenAPI
    url: openapi/stonex-fx-rates-api-openapi.yml
  - type: Documentation
    url: https://docs.payments.stonex.io/
  - type: GettingStarted
    url: https://docs.payments.stonex.io/docs/quickstart-guide-1
  - type: Documentation
    url: https://docs.clearing.stonex.com/docs
  - type: GettingStarted
    url: https://docs.clearing.stonex.com/docs/getting-started/introduction
- aid: stonex:stonex-payments-api
  name: StoneX Payments API
  description: Payment execution and management.
  humanURL: https://docs.payments.stonex.io/
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/stonex-payments-api-openapi.yml
  - type: Documentation
    url: https://docs.payments.stonex.io/
  - type: GettingStarted
    url: https://docs.payments.stonex.io/docs/quickstart-guide-1
  - type: Documentation
    url: https://docs.clearing.stonex.com/docs
  - type: GettingStarted
    url: https://docs.clearing.stonex.com/docs/getting-started/introduction
- aid: stonex:stonex-trading-api
  name: StoneX Trading API
  description: Trade submission and management.
  humanURL: https://docs.payments.stonex.io/
  tags:
  - Trading
  properties:
  - type: OpenAPI
    url: openapi/stonex-trading-api-openapi.yml
  - type: Documentation
    url: https://docs.payments.stonex.io/
  - type: GettingStarted
    url: https://docs.payments.stonex.io/docs/quickstart-guide-1
  - type: Documentation
    url: https://docs.clearing.stonex.com/docs
  - type: GettingStarted
    url: https://docs.clearing.stonex.com/docs/getting-started/introduction
common:
- type: AgenticAccess
  url: agentic-access/stonex-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/stonex-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/stonex-domain-security.yml
- type: Authentication
  url: authentication/stonex-authentication.yml
- type: GitHubOrganization
  url: https://github.com/stonex
- type: LinkedIn
  url: https://www.linkedin.com/company/stonex-group
- type: Website
  url: https://www.stonex.com
- type: DeveloperPortal
  url: https://developer.stonex.com/
- type: Documentation
  url: https://developer.stonex.com/documentation
- type: LlmsText
  url: https://developer.stonex.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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