# Api

> IntegrityPhase: signed webhook integrity receipts. PL/CZ/FR legal persons; USDC on Base. Onboarding and HMAC source setup: https://api.integrityphase.com/mcp, integrityphase://purchase-guide. Use our MCP or HTTPS; Bazaar proxy_tool_call is unsupported. Pay only a buyer-bound quote. Public discovery: this amount applies only to eligible Czech or French B2B reverse-charge buyers: EUR 20 net and gross. Access requires current sale admission. This discovery amount is not purchase authorization.

- **Domain**: `api.integrityphase.com`
- **Provider**: api.integrityphase.com (https://api.integrityphase.com/)
- **Kind**: paid_api
- **Live-responds (last probe)**: None
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 70%
- **Payment protocol**: x402 · network `eip155:8453` · ≥ $22.424039
- **Wallet**: `0x17301b640f11c3635226ac703118d7ea393a8151`

## URLs
- Agent card: https://api.integrityphase.com/.well-known/agent-card.json
- Page (HTML): https://agenstry.com/agents/api.integrityphase.com
- Documentation: https://api.integrityphase.com