Add Agent Gateway to API Gateway section

[Robocular]

Adds Agent Gateway to the API Gateway section.

Agent Gateway is a unified REST API proxy that routes to 39+ backend microservices through a single endpoint. Services include crypto wallets, DeFi data, code execution, file storage, screenshots, web scraping, and more.

• Single API key for all services
• Built-in rate limiting, authentication, and usage tracking
• OpenAPI 3.1 specs and Swagger UI on every service
• Free tier included

[Robocular]

Closing — will resubmit with updated URLs.

[wmariuss]

Looks like the Github URL is not accessible?

[Robocular]

Hi @wmariuss, thanks for the review! The GitHub repository is private (it's a hosted API service, not an open-source project). The service is publicly accessible at:

• Landing page: https://api-catalog-three.vercel.app
• API Gateway: https://agent-gateway-kappa.vercel.app
• API Documentation: https://api-catalog-three.vercel.app/docs

You can try it right now — no signup required for the docs page, and the API gives 200 free credits on key creation:

# Create a free API key
curl -X POST https://agent-gateway-kappa.vercel.app/api/keys/create

# Try the geo API
curl https://agent-gateway-kappa.vercel.app/api/geo/8.8.8.8 -H 'X-API-Key: YOUR_KEY'

I've updated the PR description to use the public landing page URL instead of the GitHub repo URL. Let me know if you'd like any other changes!

[Robocular]

Fixed — updated the link to point to our public landing page since the GitHub repo is private. Thanks for the heads up!