ParlayAPI

Real-time sports odds aggregation API covering 30+ sportsbooks and sources — regulated US books, DFS apps, betting exchanges, and prediction markets (Kalshi, Polymarket) — across 92 sport keys, with player props, historical closing lines from 2005, arbitrage/EV/middles scanning, devig and parlay calculators, WebSocket/SSE streaming, webhooks, an official MCP server, and programmatic agent signup. Drop-in replacement for the-odds-api v4. Free tier 1,000 credits/month; public display and redistribution rights are not included.

ParlayAPI publishes 1 API on the APIs.io network: ParlayAPI. Tagged areas include Sports, Odds, Betting Data, Sports Data, and Prediction Markets.

ParlayAPI’s developer surface includes authentication, changelog, support, engineering blog, signup flow, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

57.7/100 strong Agent 32/100 agent ready Full breakdown ↓
scored 2026-09-07 · rubric v0.20.0

1 APIs 1 MCP Servers

Sports Odds Betting Data Sports Data Prediction Markets Player PropsArbitrageStreaming

Kin Score

Kin Score How this is scored →
scored 2026-09-07 · rubric v0.20.0

Composite quality — 57.7/100 · strong

Contract Quality 11.5 / 23

Developer Ergonomics 10.2 / 18

Access Clarity 13.7 / 18

Operational Transparency 9.9 / 12

Contract Governance 0.5 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 32/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 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 Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/parlay-api: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

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

ParlayAPI

REST API for live and historical sports odds, player props, prediction-market prices, arbitrage/EV scanning, and account webhooks, with keyless sandbox and try surfaces, credit-...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

ParlayAPI MCP Server

Official first-party MCP server (parlayapi-mcp) exposing sports odds, props, prediction-market data, live previews, source-quality proof, and agent signup as 22 tools. Local std...

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Parlay Api Plans Pricing

6 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Parlay Api Rate Limits

8 limits

RATE LIMITS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Parlay Api Authentication

apiKey/http · 3 schemes

SECURITY

Parlay Api Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Parlay Api Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

SignUp

SignUp

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

Conventions

Idempotency

Lifecycle

Components

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

DomainSecurity

Authentication

SecurityTxt

Operate 3

Status, limits, changes, and where to get help

StatusPage

StatusPage

ChangeLog

ChangeLog

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

name: ParlayAPI
description: Real-time sports odds aggregation API covering 30+ sportsbooks and sources — regulated US books, DFS apps, betting
  exchanges, and prediction markets (Kalshi, Polymarket) — across 92 sport keys, with player props, historical closing lines
  from 2005, arbitrage/EV/middles scanning, devig and parlay calculators, WebSocket/SSE streaming, webhooks, an official MCP
  server, and programmatic agent signup. Drop-in replacement for the-odds-api v4. Free tier 1,000 credits/month; public display
  and redistribution rights are not included.
url: https://raw.githubusercontent.com/api-evangelist/parlay-api/refs/heads/main/apis.yml
image: https://parlay-api.com/static/logo.png
created: '2026-09-07'
modified: '2026-09-07'
specificationVersion: '0.21'
tags:
- Sports
- Odds
- Betting Data
- Sports Data
- Prediction Markets
- Player Props
- Arbitrage
- Streaming
apis:
- name: ParlayAPI
  description: REST API for live and historical sports odds, player props, prediction-market prices, arbitrage/EV scanning,
    and account webhooks, with keyless sandbox and try surfaces, credit-based metering, and an AsyncAPI- described WebSocket/SSE
    streaming layer.
  humanURL: https://parlay-api.com/docs
  baseURL: https://parlay-api.com
  tags:
  - Sports
  - Odds
  - Player Props
  - Prediction Markets
  properties:
  - type: OpenAPI
    url: openapi/parlay-api-openapi.json
  - type: Documentation
    url: https://parlay-api.com/docs
  - type: APIReference
    url: https://parlay-api.com/redoc
  - type: LLMsTxt
    url: https://parlay-api.com/llms.txt
  - type: Pricing
    url: https://parlay-api.com/pricing
  - type: X-MCPPackage
    url: https://github.com/JacobiusMakes/parlay-api-mcp
  - type: MCPServer
    url: mcp/parlay-api-mcp.yml
  - type: ToolCrosswalk
    url: mcp/parlay-api-tool-crosswalk.yml
  - type: AsyncAPI
    url: asyncapi/parlay-api-asyncapi.json
  - type: Webhooks
    url: asyncapi/parlay-api-webhooks.json
  - type: Overlay
    url: overlays/parlay-api-openapi-overlay.yaml
  - type: ErrorCatalog
    url: errors/parlay-api-problem-types.yml
  - type: DataModel
    url: data-model/parlay-api-data-model.yml
  - type: Sandbox
    url: sandbox/parlay-api-sandbox.yml
  - type: RateLimits
    url: rate-limits/parlay-api-rate-limits.yml
  - type: Postman
    url: https://parlay-api.com/collections/ParlayAPI.postman_collection.json
maintainers:
- FN: ParlayAPI
  email: support@parlay-api.com
x-source:
  via: api-search/inbox#22 (JacobiusMakes)
  fetched: '2026-09-07'
  note: Every pointer probed before writing; controls discriminate.
common:
- type: Website
  url: https://parlay-api.com
- type: VulnerabilityDisclosure
  url: security/parlay-api-vulnerability-disclosure.yml
- type: Security
  url: security/parlay-api-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/parlay-api-domain-security.yml
- type: Authentication
  url: authentication/parlay-api-authentication.yml
- type: Packages
  url: packages/parlay-api-packages.yml
- type: SDKs
  url: packages/parlay-api-packages.yml
- type: WellKnown
  url: well-known/parlay-api-well-known.yml
- type: SecurityTxt
  url: well-known/parlay-api-security.txt
- type: Conformance
  url: conformance/parlay-api-conformance.yml
- type: Conventions
  url: conventions/parlay-api-conventions.yml
- type: Idempotency
  url: conventions/parlay-api-conventions.yml
- type: Lifecycle
  url: lifecycle/parlay-api-lifecycle.yml
- type: StatusPage
  url: https://parlay-api.com/status
- type: ChangeLog
  url: changelog/parlay-api-changelog.yml
- type: Plans
  url: plans/parlay-api-plans-pricing.yml
- type: Components
  url: components/parlay-api-components.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Support
  url: https://parlay-api.com/support
- type: Blog
  url: https://parlay-api.com/blog
- type: SignUp
  url: https://parlay-api.com/signup
- type: TermsOfService
  url: https://parlay-api.com/terms
- type: PrivacyPolicy
  url: https://parlay-api.com/privacy
- type: GitHubOrganization
  url: https://github.com/JacobiusMakes
x-enrichment:
  date: '2026-09-07'
  status: enriched
  artifacts_added: 31
  pass: local-v3

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