Express Gateway website screenshot

Express Gateway

Express Gateway is an API gateway built on Express.js for managing and securing microservices and APIs.

Express Gateway publishes 4 APIs on the APIs.io network, including Apps API, Credentials API, Scopes API, and 1 more. Tagged areas include API Composition, API Gateway, and BFF.

Express Gateway’s developer surface includes authentication, documentation, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
25.9/100 emerging ▬ flat Agent 29/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessFreemiumSelf serve⚡ Free to try
5 APIs
API CompositionAPI GatewayBFF

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 25.9/100 · emerging
Contract Quality 12.4 / 25
Developer Ergonomics 4.3 / 20
Access Clarity 3.2 / 20
Operational Transparency 1.4 / 13
Contract Governance 0.0 / 12
Discoverability 4.6 / 10
Agent readiness — 29/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 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 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
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/express-gateway: 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 5

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

Express Gateway

Express Gateway is an API gateway built on Express.js for managing and securing microservices and APIs.

Express Gateway Apps API

The Apps API from Express Gateway — 3 operation(s) for apps.

Express Gateway Credentials API

The Credentials API from Express Gateway — 6 operation(s) for credentials.

Express Gateway Scopes API

The Scopes API from Express Gateway — 2 operation(s) for scopes.

Express Gateway Users API

The Users API from Express Gateway — 3 operation(s) for users.

Open Collections 6

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Express Gateway Admin Apps API

OPEN COLLECTION

Express Gateway Admin Apps Credentials API

OPEN COLLECTION

Express Gateway Admin Apps Scopes API

OPEN COLLECTION

Express Gateway Admin Apps Users API

OPEN COLLECTION

Express Gateway Admin API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Express Gateway Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Express Gateway Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Express Gateway Finops

FINOPS

Security Posture 2

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

Express Gateway Authentication

apiKey · 1 scheme

SECURITY

Express Gateway Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Express Gateway Agentic Access

25 operations · 16 acting

25 operations · 16 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: express-gateway
name: Express Gateway
description: Express Gateway is an API gateway built on Express.js for managing and securing microservices and APIs.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · 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/express-gateway.png
tags:
- API Composition
- API Gateway
- BFF
url: https://raw.githubusercontent.com/api-evangelist/express-gateway/refs/heads/main/apis.yml
created: '2026-03-27'
modified: '2026-04-28'
position: Producer
access: Open Source
specificationVersion: '0.23'
apis:
- aid: express-gateway:express-gateway
  name: Express Gateway
  description: Express Gateway is an API gateway built on Express.js for managing and securing microservices and APIs.
  humanURL: https://www.express-gateway.io/
  tags:
  - API Composition
  - API Gateway
  properties:
  - type: Documentation
    url: https://www.express-gateway.io/docs/
  - type: GettingStarted
    url: https://www.express-gateway.io/getting-started/
- aid: express-gateway:express-gateway-apps-api
  name: Express Gateway Apps API
  description: The Apps API from Express Gateway — 3 operation(s) for apps.
  humanURL: https://www.express-gateway.io/
  tags:
  - Application
  tags_raw:
  - Apps
  properties:
  - type: OpenAPI
    url: openapi/express-gateway-apps-api-openapi.yml
- aid: express-gateway:express-gateway-credentials-api
  name: Express Gateway Credentials API
  description: The Credentials API from Express Gateway — 6 operation(s) for credentials.
  humanURL: https://www.express-gateway.io/
  tags:
  - Credentials
  properties:
  - type: OpenAPI
    url: openapi/express-gateway-credentials-api-openapi.yml
- aid: express-gateway:express-gateway-scopes-api
  name: Express Gateway Scopes API
  description: The Scopes API from Express Gateway — 2 operation(s) for scopes.
  humanURL: https://www.express-gateway.io/
  tags:
  - Scopes
  properties:
  - type: OpenAPI
    url: openapi/express-gateway-scopes-api-openapi.yml
- aid: express-gateway:express-gateway-users-api
  name: Express Gateway Users API
  description: The Users API from Express Gateway — 3 operation(s) for users.
  humanURL: https://www.express-gateway.io/
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/express-gateway-users-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/express-gateway-agentic-access.yml
- type: DomainSecurity
  url: security/express-gateway-domain-security.yml
- type: Authentication
  url: authentication/express-gateway-authentication.yml
- type: Website
  url: https://www.express-gateway.io/
- type: Documentation
  url: https://www.express-gateway.io/docs/
- type: GitHubOrganization
  url: https://github.com/ExpressGateway
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com