Specmatic website screenshot

Specmatic

Specmatic is an AI-powered, no-code platform for API contract testing, service virtualization, and governance. It transforms API specifications (OpenAPI, AsyncAPI, gRPC, GraphQL, WSDL) into executable contracts for contract-driven development, enabling teams to ship APIs 10x faster with zero contract drift. Specmatic supports HTTP/REST, Kafka, JMS, SOAP, Redis, Google Pub/Sub, RabbitMQ, ActiveMQ, AWS SNS/SQS/EventBridge, IBM MQ, MQTT, WebSocket, and MCP protocols.

Specmatic publishes 1 API on the APIs.io network. Tagged areas include API Contract Testing, API Governance, API Mocking, Backward Compatibility, and Contract-Driven Development.

The Specmatic catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Specmatic’s developer surface includes documentation, pricing, engineering blog, GitHub presence, and 11 more developer resources.

🌐 Visit website 📡 Source on GitHub
39.5/100 thin ▼ -5.2 Agent 19/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
1 APIs 1 MCP Servers 3 Agent Skills
API Contract TestingAPI GovernanceAPI MockingBackward CompatibilityContract-Driven DevelopmentService Virtualization

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 39.5/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 5.2 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 4.8 / 13
Governance 7.0 / 12
Discoverability 6.9 / 10
Agent readiness — 19/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 12 / 12
Machine-Readable Auth 0 / 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 5 / 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/specmatic: 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 1

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

Specmatic

Specmatic provides contract testing, intelligent service virtualization, and API mocking by transforming API specifications into executable contracts. It supports backward compa...

MCP Servers 1

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

MCP Server

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

debug-specmatic-failures

AGENT SKILL

fix-openapi-spec

AGENT SKILL

specmatic-openapi-spec-extractor

AGENT SKILL

GraphQL 1

GraphQL schemas published by this provider.

Specmatic GraphQL API

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Specmatic Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Specmatic Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Specmatic Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Specmatic Context

9 classes · 9 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Specmatic API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

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

Specmatic Contract

10 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Specmatic Contract Structure

0 properties

JSON STRUCTURE

Examples 1

Example request and response payloads for these APIs.

Specmatic Contract Example

10 fields

EXAMPLE

Security Posture 1

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

Specmatic Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 AgentSkills
AgentSkills

Build 6

SDKs, sample code, and the tooling you integrate with

GitHub
GitHub
 GitHubOrganization
GitHubOrganization
 SDKs
SDKs
 SDKs
SDKs
 Samples
Samples
 GitHubAction
GitHubAction

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ContactUs
ContactUs

Commercial 1

Pricing, plans, and the legal terms of use

Pricing
Pricing

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

CaseStudies
CaseStudies

Source (apis.yml)

apis.yml Raw ↑ 
aid: specmatic
name: Specmatic
description: Specmatic is an AI-powered, no-code platform for API contract testing, service virtualization, and governance.
  It transforms API specifications (OpenAPI, AsyncAPI, gRPC, GraphQL, WSDL) into executable contracts for contract-driven
  development, enabling teams to ship APIs 10x faster with zero contract drift. Specmatic supports HTTP/REST, Kafka, JMS,
  SOAP, Redis, Google Pub/Sub, RabbitMQ, ActiveMQ, AWS SNS/SQS/EventBridge, IBM MQ, MQTT, WebSocket, and MCP protocols.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/specmatic.png
tags:
- API Contract Testing
- API Governance
- API Mocking
- Backward Compatibility
- Contract-Driven Development
- Service Virtualization
url: https://raw.githubusercontent.com/api-evangelist/specmatic/refs/heads/main/apis.yml
created: '2025-01-25'
modified: '2026-05-19'
specificationVersion: '0.19'
apis:
- aid: specmatic:specmatic
  name: Specmatic
  description: Specmatic provides contract testing, intelligent service virtualization, and API mocking by transforming API
    specifications into executable contracts. It supports backward compatibility checking, API coverage reports, resiliency
    testing, and CI/CD pipeline integration across HTTP/REST, Kafka, gRPC, GraphQL, WSDL, and MCP protocols.
  humanURL: https://specmatic.io
  baseURL: https://app.specmatic.io
  tags:
  - API Contract Testing
  - API Governance
  - API Mocking
  - Backward Compatibility
  - Contract-Driven Development
  - Service Virtualization
  properties:
  - type: Documentation
    url: https://docs.specmatic.io
  - type: GettingStarted
    url: https://specmatic.io/getting-started/
  - type: Pricing
    url: https://specmatic.io/pricing/
  - type: Blog
    url: https://specmatic.io/specmatic-updates/
  - type: GitHub
    url: https://github.com/specmatic/specmatic
  - type: X
    url: https://twitter.com/specmatic
  - type: LinkedIn
    url: https://www.linkedin.com/company/specmatic
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/specmatic/refs/heads/main/json-schema/specmatic-contract-schema.json
  - type: JSONStructure
    url: https://raw.githubusercontent.com/api-evangelist/specmatic/refs/heads/main/json-structure/specmatic-contract-structure.json
  - type: JSONLDContext
    url: https://raw.githubusercontent.com/api-evangelist/specmatic/refs/heads/main/json-ld/specmatic-context.jsonld
  - type: Vocabulary
    url: https://raw.githubusercontent.com/api-evangelist/specmatic/refs/heads/main/vocabulary/specmatic-vocabulary.yml
  - url: graphql/specmatic-graphql.md
    type: GraphQL
common:
- type: DomainSecurity
  url: security/specmatic-domain-security.yml
- type: Website
  url: https://specmatic.io
- type: Documentation
  url: https://docs.specmatic.io
- type: Pricing
  url: https://specmatic.io/pricing/
- type: Blog
  url: https://specmatic.io/specmatic-updates/
- type: GitHub
  url: https://github.com/specmatic/specmatic
- type: GitHubOrganization
  url: https://github.com/specmatic
- type: ContactUs
  url: https://specmatic.io/contact-us/
- type: CaseStudies
  url: https://specmatic.io/case-studies/
- type: SDKs
  url: https://github.com/specmatic/specmatic-node
  x-name: Specmatic Node.js SDK
  x-language: TypeScript
- type: SDKs
  url: https://github.com/specmatic/specmatic-python-extensions
  x-name: Specmatic Python Extensions
  x-language: Python
- type: Samples
  url: https://github.com/specmatic/specmatic-order-contracts
- type: GitHubAction
  url: https://github.com/specmatic/specmatic-insights-build-reporter-github-action
- name: MCP Server
  url: https://github.com/specmatic/specmatic-mcp-server
  type: MCPServer
- name: Agent Skills
  url: https://github.com/specmatic/skills
  type: AgentSkills
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com