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, code examples, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

28.0/100 thin ▬ flat Agent 11/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemium

1 APIs 1 MCP Servers 3 Agent Skills

API Contract TestingAPI Governance API Mocking Backward CompatibilityContract-Driven DevelopmentService Virtualization

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 28.0/100 · thin

Contract Quality 6.3 / 25

Developer Ergonomics 5.2 / 20

Access Clarity 5.3 / 20

Operational Transparency 1.4 / 13

Contract Governance 3.0 / 12

Discoverability 6.9 / 10

Agent readiness — 11/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 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

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/specmatic: 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.

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

SDKs

SDKs

Examples

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)

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
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
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: '0.23'
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: Examples
  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

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