> WHAT_IS_TEXT_MERCHANT

Text Merchant is a stateless LLM micro-services API designed for AI agents. Pay-per-use access to powerful text processing capabilities via cryptocurrency payments.

Key Features:

• 10+ AI-powered text processing endpoints
• Cryptocurrency payments via x402 protocol
• Stateless architecture - no user accounts required
• Multi-chain support (Base, SKALE)
• Built-in security and content filtering
• Optional telemetry via Langfuse

> API_ENDPOINTS

AI Processing Endpoints (Require x402 Payment)

• POST /api/summarize Summarize text with style options (bullet/paragraph/concise)
• POST /api/sentiment Analyze sentiment and emotion with confidence scores
• POST /api/entities Extract named entities (PERSON, ORG, GPE, PRODUCT, EVENT, DATE)
• POST /api/keywords Extract keywords and key phrases with topic identification
• POST /api/classify Classify text into categories (custom categories supported)
• POST /api/qa Question answering based on provided context
• POST /api/topics Identify main topics and themes in text
• POST /api/generate Generate text with customizable options (temperature, format)
• POST /api/paraphrase Paraphrase text with 9 style options and tone variations
• POST /api/intent Detect user intent from text (custom intents supported)

Payment Endpoints (No Auth Required)

• GET /payment/supported List all supported chains and tokens
• GET /payment/quote/:chain Get payment quote for specific chain
• GET /payment/health Payment service health check

Utility Endpoints

• GET /healthz Service health check
• GET /supported List all available endpoints

> CHAIN_AND_TOKEN_SUPPORT

SKALE Base Chain supports EIP-3009 token forwarding for gasless transactions.