Skip to main content
Sponge’s built-in x402 proxy handles service discovery, payment signing, and retries automatically. The skill lets your agent find and pay for any x402-gated API in a single step — no manual 402 handling, no retry logic.

​
Install

Included with Sponge Wallet. No separate install needed.

​
What the skill covers

CapabilityDescription
Service discoverySearch the x402 catalog by keyword
Automatic paymentDetect a 402, pay in USDC, and retry transparently
Payment linksCreate reusable payment links to gate your own services

​
Example prompts

Find a weather API and pay for it using Sponge

Search for sentiment analysis APIs in the x402 catalog

Create a payment link for my market data service at $0.01 per request

​
Reference