{"x402":"1.0","name":"Apex Agent Tool Result Contract Validator","capabilities":["agent-tool-output-validation","mcp-contract-testing","structured-json-test-fixtures"],"pricing":{"currency":"USDC","base":"0.005","unit":"request"},"payment":{"address":"0x3a6A79f6830e6E50065Ce0BeA746fa5cC151F06c","chain":"base","facilitator":"https://facilitator.xpay.sh"},"endpoint":"https://apex-agent-tool-result-validator.apex-ai-assets.workers.dev/v1/premium/mainnet/xpay/validate?payload=%7B%22schema_version%22%3A%221.0%22%2C%22tool_name%22%3A%22inventory_lookup%22%2C%22status%22%3A%22ok%22%2C%22request_id%22%3A%22req_123%22%2C%22timestamp%22%3A%222026-10-30T00%3A00%3A00Z%22%2C%22payload%22%3A%7B%22sku%22%3A%22demo-001%22%2C%22available%22%3Atrue%7D%7D"}