Betfair

Betfair operates the world's largest online betting exchange, where customers back and lay outcomes against each other rather than against a bookmaker. The Betfair Exchange API (API-NG) gives automated clients programmatic access to the exchange - navigating markets, retrieving live prices, placing and managing bets, and reading account state. It is exposed as lightweight JSON-RPC and REST operations over HTTPS under https://api.betfair.com/exchange (the Betting, Accounts, and Heartbeat APIs), with a separate real-time Exchange Stream API delivered over a raw SSL/TCP socket (CRLF-delimited JSON, not WebSocket) for low-latency market and order updates. A Historic Data API and a licensed Vendor (affiliate) API round out the platform. Auth combines an Application Key with a session token (ssoid) obtained from Betfair's identity SSO login.

Betfair publishes 6 APIs on the APIs.io network, including Exchange Stream API, Accounts API, Betting API, and 3 more. Tagged areas include Betting Exchange, Sports Betting, Wagering, Trading, and Market Data.

The Betfair catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Betfair’s developer surface includes authentication, documentation, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

39.6/100 developing ▬ flat Agent 23/100 agent aware Full breakdown ↓
scored 2026-08-24 · rubric v0.13.0

AccessPaidSelf serve

7 APIs

Betting ExchangeSports BettingWageringTrading Market Data JSON-RPC Streaming

Kin Score

Kin Score How this is scored →
scored 2026-08-24 · rubric v0.13.0

Composite quality — 39.6/100 · developing

Contract Quality 12.8 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 6.7 / 17

Operational Transparency 3.5 / 11

Contract Governance 1.4 / 10

Discoverability 6.3 / 9

Regulatory Posture 4.5 / 15

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 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 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

Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data 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/betfair: 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 7

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

Rate Limits 1

Documented rate limits and quota policies.

Betfair Rate Limits

7 limits

RATE LIMITS

FinOps 1

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

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

LinkedIn

Website

Website

Source (apis.yml)

aid: betfair
url: https://raw.githubusercontent.com/api-evangelist/betfair/refs/heads/main/apis.yml
name: Betfair
kind: company
description: Betfair operates the world's largest online betting exchange, where customers back and lay outcomes against each
  other rather than against a bookmaker. The Betfair Exchange API (API-NG) gives automated clients programmatic access to
  the exchange - navigating markets, retrieving live prices, placing and managing bets, and reading account state. It is exposed
  as lightweight JSON-RPC and REST operations over HTTPS under https://api.betfair.com/exchange (the Betting, Accounts, and
  Heartbeat APIs), with a separate real-time Exchange Stream API delivered over a raw SSL/TCP socket (CRLF-delimited JSON,
  not WebSocket) for low-latency market and order updates. A Historic Data API and a licensed Vendor (affiliate) API round
  out the platform. Auth combines an Application Key with a session token (ssoid) obtained from Betfair's identity SSO login.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · 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/betfair.png
tags:
- Betting Exchange
- Sports Betting
- Wagering
- Trading
- Market Data
- JSON-RPC
- Streaming
created: '2026-07-03'
modified: '2026-07-03'
specificationVersion: '0.23'
apis:
- aid: betfair:betfair-exchange-stream-api
  name: Betfair Exchange Stream API
  tags:
  - Streaming
  - Real-Time
  - Market Data
  - TCP
  tags_raw:
  - Streaming
  - Real Time
  - Market Data
  - TCP
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Exchange+Stream+API
  baseURL: tcp+ssl://stream-api.betfair.com:443
  properties:
  - url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Exchange+Stream+API
    type: Documentation
  - url: https://github.com/betfair/stream-api-sample-code
    type: SourceCode
  - url: asyncapi/betfair-asyncapi.yml
    type: AsyncAPI
  description: Low-latency, subscription-based push of market and order changes over a persistent raw SSL/TCP socket to stream-api.betfair.com:443.
    The protocol is CRLF-delimited JSON (one JSON message per line) - NOT WebSocket; attempted WebSocket connections are refused.
    Clients authenticate then send marketSubscription / orderSubscription requests and receive market change (mcm) and order
    change (ocm) messages plus connection, status, and heartbeat frames.
- aid: betfair:betfair-vendor-api
  name: Betfair Vendor API
  tags:
  - Vendor
  - Affiliates
  - Authentication
  - Web App
  tags_raw:
  - Vendor
  - Affiliate
  - OAuth2
  - Web Apps
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Web+Vendor+Facility
  baseURL: https://identitysso.betfair.com
  properties:
  - url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Web+Vendor+Facility
    type: Documentation
  description: The Web Vendor Facility for licensed software vendors building web-based betting applications. Uses an OAuth2-style
    authorization flow so a vendor's web application can obtain access and refresh tokens and act on a Betfair customer's
    behalf, with the vendor able to charge subscriptions via application subscription tokens.
- aid: betfair:betfair-accounts-api
  name: Betfair Accounts API
  description: AccountAPING - account funds, details, statement, and app keys.
  humanURL: https://developer.betfair.com/en/get-started/
  baseURL: https://api.betfair.com/exchange/betting
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/betfair-accounts-api-openapi.yml
  - type: Documentation
    url: https://developer.betfair.com/exchange-api/
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Betting+API
  - type: PostmanCollection
    url: collections/betfair.postman_collection.json
  - type: OpenCollection
    url: collections/betfair.opencollection.json
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Accounts+API
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Heartbeat+API
  - type: Documentation
    url: https://developer.betfair.com/historical-data-services-api/
  - type: Specification
    url: https://historicdata.betfair.com/Betfair-Historical-Data-Feed-Specification.pdf
- aid: betfair:betfair-betting-api
  name: Betfair Betting API
  description: SportsAPING - market navigation, prices, and bet placement.
  humanURL: https://developer.betfair.com/en/get-started/
  baseURL: https://api.betfair.com/exchange/betting
  tags:
  - Betting
  properties:
  - type: OpenAPI
    url: openapi/betfair-betting-api-openapi.yml
  - type: Documentation
    url: https://developer.betfair.com/exchange-api/
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Betting+API
  - type: PostmanCollection
    url: collections/betfair.postman_collection.json
  - type: OpenCollection
    url: collections/betfair.opencollection.json
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Accounts+API
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Heartbeat+API
  - type: Documentation
    url: https://developer.betfair.com/historical-data-services-api/
  - type: Specification
    url: https://historicdata.betfair.com/Betfair-Historical-Data-Feed-Specification.pdf
- aid: betfair:betfair-heartbeat-api
  name: Betfair Heartbeat API
  description: HeartbeatAPING - dead man's switch that cancels unmatched bets.
  humanURL: https://developer.betfair.com/en/get-started/
  baseURL: https://api.betfair.com/exchange/betting
  tags:
  - Heartbeat
  properties:
  - type: OpenAPI
    url: openapi/betfair-heartbeat-api-openapi.yml
  - type: Documentation
    url: https://developer.betfair.com/exchange-api/
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Betting+API
  - type: PostmanCollection
    url: collections/betfair.postman_collection.json
  - type: OpenCollection
    url: collections/betfair.opencollection.json
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Accounts+API
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Heartbeat+API
  - type: Documentation
    url: https://developer.betfair.com/historical-data-services-api/
  - type: Specification
    url: https://historicdata.betfair.com/Betfair-Historical-Data-Feed-Specification.pdf
- aid: betfair:betfair-historic-data-api
  name: Betfair Historic Data API
  description: Download purchased historical exchange market data.
  humanURL: https://developer.betfair.com/en/get-started/
  baseURL: https://api.betfair.com/exchange/betting
  tags:
  - Historic Data
  properties:
  - type: OpenAPI
    url: openapi/betfair-historic-data-api-openapi.yml
  - type: Documentation
    url: https://developer.betfair.com/exchange-api/
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Betting+API
  - type: PostmanCollection
    url: collections/betfair.postman_collection.json
  - type: OpenCollection
    url: collections/betfair.opencollection.json
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Accounts+API
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Heartbeat+API
  - type: Documentation
    url: https://developer.betfair.com/historical-data-services-api/
  - type: Specification
    url: https://historicdata.betfair.com/Betfair-Historical-Data-Feed-Specification.pdf
- aid: betfair:betfair-identity-api
  name: Betfair Identity API
  description: Session login, keep-alive, and logout via Betfair identity SSO.
  humanURL: https://developer.betfair.com/en/get-started/
  baseURL: https://api.betfair.com/exchange/betting
  tags:
  - Identity
  properties:
  - type: OpenAPI
    url: openapi/betfair-identity-api-openapi.yml
  - type: Documentation
    url: https://developer.betfair.com/exchange-api/
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Betting+API
  - type: PostmanCollection
    url: collections/betfair.postman_collection.json
  - type: OpenCollection
    url: collections/betfair.opencollection.json
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Accounts+API
  - type: APIReference
    url: https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Heartbeat+API
  - type: Documentation
    url: https://developer.betfair.com/historical-data-services-api/
  - type: Specification
    url: https://historicdata.betfair.com/Betfair-Historical-Data-Feed-Specification.pdf
common:
- type: AgenticAccess
  url: agentic-access/betfair-agentic-access.yml
- type: DomainSecurity
  url: security/betfair-domain-security.yml
- type: Authentication
  url: authentication/betfair-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/betfair
- type: Website
  url: https://www.betfair.com
- type: Documentation
  url: https://developer.betfair.com/
- type: Plans
  url: plans/betfair-plans-pricing.yml
- type: RateLimits
  url: rate-limits/betfair-rate-limits.yml
- type: FinOps
  url: finops/betfair-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/betfair"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/betfair/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/betfair/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.