generated: '2026-09-19' method: searched source: https://kannkidas.de/AGENTS.md description: >- Kann KI das? publishes no test mode for the Stripe sponsoring checkout — there are no test keys, no test slots and no fixture tooling; every createSponsorPurchase is a live EUR checkout. The only published test surface is the x402 v2 conformance endpoint GET /api/v1, which AGENTS.md and the /agents/ page describe as a clearly separated testnet demo ("Abgegrenzter 0,001-USD-Testnet-Kauf eines Buyer Briefs; er reserviert keinen Sponsorplatz"). Values below are verbatim from the live 402 PAYMENT-REQUIRED header decoded on 2026-09-19. docs: - https://kannkidas.de/AGENTS.md - https://kannkidas.de/agents/ - https://kannkidas.de/openapi.json modes: - name: live surfaces: [createSponsorPurchase, create_sponsor_checkout (MCP)] notes: Real 990 EUR Stripe Checkout; AGENTS.md guardrails require explicit buyer confirmation before any call. No sandbox counterpart exists. - name: testnet (x402 demo) surfaces: [getPaidSponsorBuyerBrief] endpoint: https://kannkidas.de/api/v1 protocol: x402 v2 network: eip155:84532 (Base Sepolia testnet) asset: '0x036CbD53842c5426634e7929541eC2318f3dCF7e (USDC, version 2)' amount: '1000 base units (0.001 USDC)' pay_to: '0x7d336db5c8b431d5600C52697D1180e011239cEe' max_timeout_seconds: 300 response_header: PAYMENT-RESPONSE (base64) on 200; PAYMENT-REQUIRED (base64) on 402; Vary PAYMENT-SIGNATURE notes: Reserves no slot, confirms no booking; returns a buyer brief with live slot availability. read_only_rehearsal: - GET /api/slots (anonymous, 15 s cache) — the documented pre-purchase check. - MCP list_sponsor_slots / A2A list-sponsor-slots — same read. test_values: [] test_clocks: false fixtures: false