# WebPulse — Full API Documentation

> Web scraping + DuckDuckGo search — any URL to markdown, any query to results
> Price: $0.01/query | Protocol: x402 | Networks: Solana + Base

## Endpoints

### /extract
- Method: POST
- Price: $0.01 (10000 atomic USDC)
- Auth: X-PAYMENT header (x402)
- Body: { "url": "https://..." }

### /search
- Method: POST
- Price: $0.01 (10000 atomic USDC)
- Auth: X-PAYMENT header (x402)
- Body: { "query": "...", "num": 5 }

### /badge
- Method: GET
- Price: No auth required
- Returns: SVG badge

## Authentication

### x402 (Recommended for agents)
1. Make request without payment
2. Parse 402 response PAYMENT-REQUIRED header (base64 JSON)
3. Sign payment authorization (EIP-3009 on Base, SPL transfer on Solana)
4. Retry with X-PAYMENT header

## Payment Details
- Asset: USDC (6 decimals)
- Amount: 10000 atomic = $0.01
- Solana payTo: GsKr5q9TmiJQcEgUpBp2X6SmvSg3dnXuw2uxYJxgPTk8
- Base payTo: 0x318A4B4764eb37c3FCBcE434713128143815FD57
- Solana feePayer: resolved dynamically from CDP's /x402/supported registry each time a 402 is issued —
  the CDP facilitator pool rotates, so this address changes; the 402 always reflects a current member.

## Provider
Waltsoft · https://waltsoft.net · 12 pay-per-query intelligence APIs