# SellerLens AI - x402 Paid API
> AI cross-border e-commerce toolkit with x402 pay-per-use.
> Payment: 0.001 USDC on Base chain (eip155:8453)
> PayTo: 0x7856FE8F03E7E5C7bdB4082f0a2A82ecE20E008c

## Core Services
- /v1/chat/completions: AI Chat/Completion (DeepSeek proxy) - 0.001 USDC
- /v1/embeddings: AI Embeddings (DeepSeek proxy) - 0.0003 USDC
- /api/v1/llm/chat: Direct LLM access - 0.0003 USDC

## Amazon Services
- /api/v1/listing/generate: AI Amazon Listing generation - 0.001 USDC
- /api/v1/keyword/research: Keyword research - 0.0005 USDC
- /api/v1/market/trends: Category trend data - 0.0003 USDC

## Reference
- OpenAPI spec: /openapi.json
- Models: /v1/models
- AI Plugin: /.well-known/ai-plugin.json
- x402 payment: Send USDC on Base chain, retry with X-Payment-Tx header