{"product": "first-call-latency-witness", "name": "First-Call Witness", "provider": "TextForAgents LLC", "description": "Real MCP initialize + tools/list handshake graded against budgets-v1-2026-10-20, signed expiring receipt. /healthz is liveness only, never a verdict.", "prices": {"check_atomic": 250000, "check_usd": 0.25, "scheduled_probe_atomic": 250000, "keepwarm_atomic": 9990000, "keepwarm_usd": 9.99}, "trial": "first one-off witness check free, once per operator account (normalized identity) and payer wallet", "budgets_url": "/budgets", "support": "support@textforagents.com", "endpoints": ["/register", "/check", "/receipt/<id>", "/verify-receipt", "/budgets", "/subscribe", "/keepwarm", "/account", "/mcp"]}