# AskClaude — Pay-per-question AI via x402

> AskClaude lets AI agents and humans query Claude (Opus, Sonnet, Haiku) with USDC micropayments on Base. No API keys, no accounts — just HTTP + x402.

## Base URL
https://askclaude.shop

## Payment Protocol
x402 (USDC on Base, EIP-155:8453)

## Endpoints

### Ask (general questions)
- POST /ask/haiku — $0.01 — Fast responses (Claude Haiku 4.5)
- POST /ask/sonnet — $0.03 — Smart responses (Claude Sonnet 4.6)
- POST /ask/opus — $0.10 — Advanced responses (Claude Opus 4.6)

### Ask (streaming)
- POST /ask/haiku/stream — $0.01 — Streaming fast responses
- POST /ask/sonnet/stream — $0.03 — Streaming smart responses
- POST /ask/opus/stream — $0.10 — Streaming advanced responses

### Tools
- POST /tools/summarize — $0.02 — Summarize any text
- POST /tools/json-extract — $0.02 — Extract structured JSON from text
- POST /tools/code-review — $0.05 — Review code for bugs and improvements
- POST /tools/translate — $0.02 — Translate text to any language
- POST /tools/sentiment — $0.01 — Analyze text sentiment
- POST /tools/crypto-analysis — $0.03 — Crypto market analysis with live data

## Request Format
All endpoints accept JSON body: { "query": "your question here" }
Tools accept: { "text": "...", "language": "..." } (varies by tool)

## Discovery
- GET /.well-known/x402 — Payment protocol discovery
- GET /api — Full API documentation

## Integration
- NPM: askclaude-mcp (MCP server for AI agents)
- GitHub: pvega23/askclaude-mcp