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
32.9/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
5 APIs
API CompositionAPI GatewayBFF

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 32.9/100 · thin
Contract Quality 11.7 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 4.6 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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 1

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

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: '0.19'
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:
  - 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:
  - 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