# Xenga > On-chain USDC escrow and open credit data for humans and agents on Base. x402-compatible — any x402 agent can pay without Xenga-specific code. ## Key Capabilities - **Escrow payments**: Lock USDC in on-chain escrow with configurable release windows, auto-release, and dispute resolution - **Open credit data**: Portable reputation scores (0-100) derived from real escrow outcomes — completion rate, dispute rate, volume - **x402 protocol**: Standard HTTP 402 payment flow — POST, get requirements, sign ERC-3009, retry with signature - **Service types**: agent-service (1h), inference (5min), tool-call (1min), marketplace (7d), data-pipeline (1h) - **Client SDK**: `escrowFetch()` drop-in fetch wrapper, `createEscrowClient()` for full lifecycle management - **Seller dashboard**: Self-service order management, API keys, webhooks, payment links ## Links - Docs: https://xenga.xyz/docs/quickstart - Agent Guide: https://xenga.xyz/docs/agent-guide - API Reference: https://xenga.xyz/docs/api-reference - SDK Reference: https://xenga.xyz/docs/sdk-reference - Seller Guide: https://xenga.xyz/docs/seller-guide - Agent Skills: https://xenga.xyz/agent-skills.md - Full context for AI: https://xenga.xyz/llms-full.txt