New · MCP Server for your APIs →

API Developer Portal

for internal APIs. for partner APIs. for AI agents. for API teams. for self-service. for all your APIs.

API Portal is the developer portal for companies that document, version, and publish their APIs in one place. Developers find every interface in the API catalog and test it right in the documentation.

Free 14-day trial See live demo
app.api-portal.io
REST GraphQL AsyncAPI
GET v2.1
Payment API
gRPC
Order Service
GraphQL
User Service
WebSocket
Event Stream

// API definition & standards

The developer portal for OpenAPI, AsyncAPI, GraphQL, and more.

Supported specs

// Why an API developer portal

The SaaS platform that takes API teams from spec to sunset.

The API developer portal for governance, API management, and developer experience.

API governance & compliance

Approval flows, audit log, and automated quality checks for compliance in banking, healthcare, and regulated industries.

MCP server & AI-ready APIs

Every API automatically as an MCP server, ready for Claude, ChatGPT, and agent workflows. Your API portfolio becomes AI-ready instantly.

Developer experience

Processes to onboard API developers, gather feedback, and share patterns across teams.

Self-service discovery

Developers find API capabilities on their own through the central API catalog. The whole organization works faster.

API transparency

A central hub for API providers and API consumers — exchange, discover, collaborate.

Interactive API documentation

API documentation that helps app developers understand every interface faster and use it correctly.

API management

Catalog, set up, and manage every API. Fast and simple from one central platform.

API lifecycle

Steer the lifecycle of your APIs from design through versioning to retirement, across platforms and teams.

// Features

Everything you need.
In one place.

API Catalog

Centralized API management for your enterprise.

The API catalog is the single source of truth for every API. Through self-service, everyone finds the right interface, from developers to product owners to partners, without having to ask the owning team.

  • Full visibility across every API
  • Faster delivery through self-service
  • Effective team collaboration
Learn more →
app.api-portal.io/catalog
RESTv3.0
Payment API
GraphQL
User Service
AsyncAPI
Event Stream
RESTBeta
Search API
API Explorer

Interactive API documentation that always stays current.

A complete view of your API's capabilities. Interactive walkthroughs and try-it-out right inside the documentation.

  • Interactive API walkthrough
  • API try-it-out straight in the browser
  • Direct access to every endpoint
Learn more →
app.api-portal.io/explorer
GET/api/v2/users
POST/api/v2/users
PUT/api/v2/users/{id}
DEL/api/v2/users/{id}
GET/api/v2/teams
Developer Tools

Pro-grade tools for API developers.

A full toolkit for API developers. Fast provisioning, efficient development, and automated workflows.

  • Fast provisioning via CLI
  • Automation through CI/CD
  • Release management & versioning
Learn more →
Terminal

$ apiportal deploy --env production

✓ Uploading OpenAPI spec... done

✓ Validating schema... passed (0 errors)

✓ Generating documentation... done

✓ Running linter checks... passed

✓ Publishing to portal... done

✓ Deployed successfully!

  → https://app.api-portal.io/docs/payment-api/v3

$

Release timeline

Versioning · Changelog

Full control over every API version. Breaking changes, deprecation warnings, and an automatic changelog from every spec change — from v1.0 to sunset.

  • Automatic breaking-change detection
  • Changelog generated from spec diff
  • Deprecation policies with sunset timer
Learn more →
app.api-portal.io/releases
Payment API latest v3.2
v3.2.0 +3 EP 2 chg 1 fix
27. Feb 2026
v3.1.0 +1 EP 3 fix
14. Jan 2026
v3.0.0 breaking +8 EP
02. Nov 2025
v3.1→v3.2
+142−23
Access control

Granular access control at the API level.

Decide who can see, test, and consume which API — for teams, departments, and external partners. SSO and SAML for enterprise setups included.

  • Roles and teams down to endpoint level
  • SSO / SAML for enterprise
  • API access fully auditable
Learn more →
app.api-portal.io/settings/permissions
Berechtigung
Admin
Editor
Viewer
APIs anzeigen
APIs bearbeiten
APIs deployen
Mitglieder verwalten
Billing & Settings

// How it works

Your API Portal in 3 steps.

1
Create API
2
Manage team
3
Publish API
01

Create a new API

Set up your API in the portal and upload your OpenAPI spec — via drag & drop or CI/CD.

02

Manage your team

Invite team members, assign permissions, and configure access controls.

03

Publish your API

Ship your API and engage your audience — all in one place.

API standards

Code generation

CI/CD & automation

// Pricing

Simple, fair pricing.

Flexible plans for every team size.

Starter
For small teams
On request
  • Up to 5 APIs
  • Automatic documentation
  • 3 team members
  • Community support
Contact sales
Popular
Professional
For growing businesses
On request
  • Unlimited APIs
  • Versioning & changelog
  • 25 team members
  • Access control
  • Priority support
Contact sales
Enterprise
For large organizations
On request
  • Everything in Professional
  • SSO & SAML
  • Unlimited teams
  • Dedicated support
  • SLA available on request
Contact sales
Compare all plans →

// FAQ

Frequently asked questions.

Have more questions? Our team is happy to help.

Get in touch
Reach out to our sales team for a personalized trial. We'll set up a dedicated demo environment where you can explore every feature hands-on.
We support OpenAPI 3.0+, OpenAPI 2.0 (Swagger), AsyncAPI 2.x, and GraphQL schemas.
You can define roles and teams, then set granular rules for who can view, test, and consume each API. SSO integration is included in the Enterprise plan.
Yes. Our CLI and REST API let you update API specs automatically on every deployment. We offer ready-made integrations for GitHub Actions, GitLab CI, and Jenkins.
All data is hosted in EU data centers in Frankfurt and is fully GDPR-compliant. The Enterprise plan also offers on-premise deployment.
An API developer portal is the central platform where an enterprise makes its APIs available to internal and external developers. It bundles the API catalog, documentation, access control, and self-service discovery in one place.
An API developer portal is the front door for your API developers — documentation, versions, access control, and try-it-out for every interface, self-explanatory and always current. An API gateway routes traffic at runtime. An API dev portal organizes the lifecycle: design, onboarding, governance, audit. The two work together — the gateway controls, the portal explains. If you need both, start with the portal.
Centralized API management cuts redundancy, increases visibility of internal services, and accelerates integration. Developers find existing APIs instead of building them again.

Ready for the API revolution?

Experience the platform for modern API management.

Free 14-day trial → Book a demo