Sponge x402

Skill for discovering and paying for x402 services automatically using Sponge Wallet’s built-in proxy

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

Capability	Description
Service discovery	Search the x402 catalog by keyword
Automatic payment	Detect a 402, pay in USDC, and retry transparently
Payment links	Create 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

• Sponge Wallet skill doc →