SOA

Service-Oriented Architecture (SOA) is an architectural style for building software applications as a collection of loosely coupled, interoperable services. Each service encapsulates a specific business capability and communicates with others through well-defined interfaces, commonly using SOAP, REST, or messaging protocols. SOA enables enterprise integration, reusability, and flexibility across heterogeneous systems.

SOA is listed with 1 API on the APIs.io network. Tagged areas include SOA, Service-Oriented Architecture, Enterprise Integration, Web Services, and SOAP.

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

SOA’s developer surface includes code examples and 14 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

19.9/100 emerging ▬ flat Agent 2/100 human only Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemium

1 API

SOA Service-Oriented Architecture Enterprise Integration Web Services SOAP ESB Microservices API Design Developer Tools

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 19.9/100 · emerging

Contract Quality 3.7 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 1.1 / 17

Operational Transparency 1.8 / 11

Contract Governance 2.4 / 10

Discoverability 4.9 / 9

Regulatory Posture 2.5 / 15

Agent readiness — 2/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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 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 Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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.

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.

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/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/soa/"><img src="https://apis.io/badge/soa/card.svg" alt="SOA on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 17.2 — up to +20.7 composite points Ask about this →
Access Clarity scores 6.4 — up to +18.7 composite points Ask about this →
Developer Ergonomics scores 16.7 — up to +16.7 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/soa/apis.yml: open an issue on github.com/api-evangelist/soa to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

SOAP

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 1

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

SOA Governance and Registry

Reference resources and tooling for SOA governance, service registries, and enterprise service management. Includes patterns for service discovery, versioning, SLA management, a...

SOA API pricing

Not yet checked against SOA's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against SOA's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

SOA Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

SOA Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

SOA Finops

FINOPS

Semantic Vocabularies 1

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

Soa Context

28 classes · 6 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

SOA — jsonschema rules

5 rules · 4 warn-severity 1 info-severity

SPECTRAL

JSON Schema 1

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

SOA Service

12 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

SOA Service Structure

0 properties

JSON STRUCTURE

Examples 1

Example request and response payloads for these APIs.

SOA Service Registry Example

3 fields

EXAMPLE

Security Posture 2

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

SOA Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

SOA Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Documentation 5

Reference material describing how the API behaves

Reference Documentation

Reference Documentation

W3C SOAP Specification

W3C SOAP Specification

W3C WSDL Specification

W3C WSDL Specification

OASIS SOA Reference Model

OASIS SOA Reference Model

JSONSchema

JSONSchema

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

JSONLDContext

JSONLDContext

JSONStructure

JSONStructure

Vocabulary

Vocabulary

Build 1

SDKs, sample code, and the tooling you integrate with

Examples

Examples

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

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 1

The organization behind the API

Website

Website

Source (apis.yml)

deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/soa.png
name: SOA
description: Service-Oriented Architecture (SOA) is an architectural style for building software applications as a collection
  of loosely coupled, interoperable services. Each service encapsulates a specific business capability and communicates with
  others through well-defined interfaces, commonly using SOAP, REST, or messaging protocols. SOA enables enterprise integration,
  reusability, and flexibility across heterogeneous systems.
url: https://raw.githubusercontent.com/api-evangelist/soa/refs/heads/main/apis.yml
tags:
- SOA
- Service-Oriented Architecture
- Enterprise Integration
- Web Services
- SOAP
- ESB
- Microservices
- API Design
- Developer Tools
created: '2025'
modified: '2026-05-02'
specificationVersion: '0.23'
apis:
- aid: soa:soa-governance
  name: SOA Governance and Registry
  description: Reference resources and tooling for SOA governance, service registries, and enterprise service management.
    Includes patterns for service discovery, versioning, SLA management, and policy enforcement in SOA environments.
  humanURL: https://en.wikipedia.org/wiki/Service-oriented_architecture
  tags:
  - SOA Governance
  - Service Registry
  - Enterprise Integration
  - Policy Management
  properties:
  - type: Documentation
    url: https://en.wikipedia.org/wiki/Service-oriented_architecture
  - type: Reference
    url: https://www.w3.org/TR/wsdl20/
common:
- type: Plans
  url: plans/soa-plans-pricing.yml
- type: RateLimits
  url: rate-limits/soa-rate-limits.yml
- type: FinOps
  url: finops/soa-finops.yml
- type: Website
  url: https://www.w3.org/
- type: VulnerabilityDisclosure
  url: security/soa-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/soa-domain-security.yml
- type: Reference Documentation
  url: https://en.wikipedia.org/wiki/Service-oriented_architecture
- type: W3C SOAP Specification
  url: https://www.w3.org/TR/soap12/
- type: W3C WSDL Specification
  url: https://www.w3.org/TR/wsdl20/
- type: OASIS SOA Reference Model
  url: https://www.oasis-open.org/committees/tc_home.php?wg_abbrev=soa-rm
- type: JSONLDContext
  url: json-ld/soa-context.jsonld
- type: JSONSchema
  url: json-schema/soa-service-schema.json
- type: JSONStructure
  url: json-structure/soa-service-structure.json
- type: Vocabulary
  url: vocabulary/soa-vocabulary.yml
- type: Examples
  url: examples/soa-service-registry-example.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

SOA API — frequently asked questions

Does SOA have an API?

Yes. APIs.io lists 1 API from SOA, including SOA Governance and Registry.

How much does the SOA API cost?

APIs.io lists 3 pricing plans for SOA, with each plan's price, limits and inclusions under Pricing on this page.

Is the SOA API ready for AI agents?

SOA has a Kin Score of 19.9 out of 100 (emerging) and an Agent Readiness score of 1.9 (human-only), scored by API Evangelist on 2026-11-13.

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/soa"

All providers

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

Every operation they expose

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

How their score was established

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

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

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