# av-hub-x402-gateway
x402 paid tools on Base mainnet USDC (eip155:8453).
MCP: https://api.defifintechdirectory.com/mcp
Send a request to a tool URL, read its HTTP 402 PAYMENT-REQUIRED challenge, then retry with PAYMENT-SIGNATURE.
Limits: 250 paid calls per UTC day overall; 60 per payer address. A concurrent request can be refused after signing.
- game_launch_kit: Build an original game planning bundle from a supplied brief. No competitor facts are invented. Price: 0.02 USDC. https://api.defifintechdirectory.com/tools/game_launch_kit
- store_art_prompt_pack: Generate bounded original store-art briefs for supplied aspect ratios. Price: 0.02 USDC. https://api.defifintechdirectory.com/tools/store_art_prompt_pack
- ship_gate_audit: Score a supplied release evidence checklist without fetching a URL or claiming legal compliance. Price: 0.02 USDC. https://api.defifintechdirectory.com/tools/ship_gate_audit