{
  "format": "delx/discovery-pack/v1",
  "id": "evaluate-x402-services-before-paying",
  "title": "Evaluate an x402 service before an agent pays",
  "description": "Inspect a resource summary, protocol response, server contract, domain signals, price drift and delivery expectations before choosing a paid endpoint. This is deterministic technical diligence and does not provide human reviews or reputation, verified identity or a quality guarantee.",
  "audience": "Buyer agents, procurement agents and x402 directory builders",
  "query": "inspect x402 price contract trust and expected delivery before choosing a paid endpoint",
  "keywords": [
    "x402 endpoint review",
    "x402 service discovery",
    "agent procurement diligence",
    "x402 price drift",
    "paid API trust check",
    "before agent payment"
  ],
  "updated_at": "2026-08-23",
  "canonical_url": "https://commerce.delx.ai/packs/evaluate-x402-services-before-paying",
  "machine_url": "https://commerce.delx.ai/packs/evaluate-x402-services-before-paying.json",
  "entrypoints": {
    "human": "https://commerce.delx.ai/?q=inspect%20x402%20price%20contract%20trust%20and%20expected%20delivery%20before%20choosing%20a%20paid%20endpoint",
    "intent_search": "https://api.delx.ai/api/v1/x402/start?q=inspect%20x402%20price%20contract%20trust%20and%20expected%20delivery%20before%20choosing%20a%20paid%20endpoint",
    "graph": "https://commerce.delx.ai/discovery.json"
  },
  "attribution": {
    "header": "x-delx-source",
    "value": "discovery-pack-evaluate-x402-services-before-paying"
  },
  "products": [
    {
      "tool_name": "util_x402_resource_summary",
      "service_name": "Delx X402 Resource Summary",
      "category": "utility",
      "price_usdc": "0.001",
      "method": "POST",
      "route": "/api/v1/x402/resource-summary",
      "product_url": "https://commerce.delx.ai/products/util-x402-resource-summary",
      "intent_url": "https://commerce.delx.ai/intents/x402-resource-summary-api",
      "machine_url": "https://commerce.delx.ai/intents/x402-resource-summary-api.json",
      "input_schema": {
        "type": "object",
        "properties": {
          "url": {
            "type": "string",
            "description": "x402 server origin"
          },
          "timeout": {
            "type": "integer",
            "description": "Timeout in seconds (1-15)",
            "default": 8,
            "minimum": 1,
            "maximum": 15
          }
        },
        "required": [
          "url"
        ]
      },
      "example_input": {
        "url": "https://api.delx.ai"
      },
      "agentcash_buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/resource-summary -m POST -H 'x-delx-source: discovery-pack-evaluate-x402-services-before-paying' --max-amount 0.001 -b '{\"url\":\"https://api.delx.ai\"}'"
    },
    {
      "tool_name": "util_x402_server_probe",
      "service_name": "Delx X402 Server Probe",
      "category": "utility",
      "price_usdc": "0.01",
      "method": "POST",
      "route": "/api/v1/x402/server-probe",
      "product_url": "https://commerce.delx.ai/products/util-x402-server-probe",
      "intent_url": "https://commerce.delx.ai/intents/x402-server-probe-api",
      "machine_url": "https://commerce.delx.ai/intents/x402-server-probe-api.json",
      "input_schema": {
        "type": "object",
        "properties": {
          "url": {
            "type": "string",
            "description": "x402 server origin"
          },
          "timeout": {
            "type": "integer",
            "description": "Timeout in seconds (1-15)",
            "default": 8,
            "minimum": 1,
            "maximum": 15
          }
        },
        "required": [
          "url"
        ]
      },
      "example_input": {
        "url": "https://api.delx.ai"
      },
      "agentcash_buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/server-probe -m POST -H 'x-delx-source: discovery-pack-evaluate-x402-services-before-paying' --max-amount 0.01 -b '{\"url\":\"https://api.delx.ai\"}'"
    },
    {
      "tool_name": "util_x402_server_audit",
      "service_name": "Delx X402 Server Audit",
      "category": "utility",
      "price_usdc": "0.01",
      "method": "POST",
      "route": "/api/v1/x402/server-audit",
      "product_url": "https://commerce.delx.ai/products/util-x402-server-audit",
      "intent_url": "https://commerce.delx.ai/intents/x402-server-audit-api",
      "machine_url": "https://commerce.delx.ai/intents/x402-server-audit-api.json",
      "input_schema": {
        "type": "object",
        "properties": {
          "url": {
            "type": "string",
            "description": "x402 server origin"
          },
          "timeout": {
            "type": "integer",
            "description": "Timeout in seconds (1-15)",
            "default": 8,
            "minimum": 1,
            "maximum": 15
          }
        },
        "required": [
          "url"
        ]
      },
      "example_input": {
        "url": "https://api.delx.ai"
      },
      "agentcash_buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/server-audit -m POST -H 'x-delx-source: discovery-pack-evaluate-x402-services-before-paying' --max-amount 0.01 -b '{\"url\":\"https://api.delx.ai\"}'"
    },
    {
      "tool_name": "util_domain_trust_report",
      "service_name": "Delx Domain Trust Report",
      "category": "utility",
      "price_usdc": "0.01",
      "method": "POST",
      "route": "/api/v1/x402/domain-trust-report",
      "product_url": "https://commerce.delx.ai/products/util-domain-trust-report",
      "intent_url": "https://commerce.delx.ai/intents/domain-trust-api",
      "machine_url": "https://commerce.delx.ai/intents/domain-trust-api.json",
      "input_schema": {
        "type": "object",
        "properties": {
          "url": {
            "type": "string",
            "description": "Domain or URL to inspect"
          },
          "timeout": {
            "type": "integer",
            "description": "Timeout in seconds (1-15)",
            "default": 8,
            "minimum": 1,
            "maximum": 15
          }
        },
        "required": [
          "url"
        ]
      },
      "example_input": {
        "url": "https://example.com"
      },
      "agentcash_buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/domain-trust-report -m POST -H 'x-delx-source: discovery-pack-evaluate-x402-services-before-paying' --max-amount 0.01 -b '{\"url\":\"https://example.com\"}'"
    },
    {
      "tool_name": "util_x402_price_drift_check",
      "service_name": "X402 Price Drift Check",
      "category": "commercial-operations",
      "price_usdc": "0.001",
      "method": "POST",
      "route": "/api/v1/x402/x402-price-drift-check",
      "product_url": "https://commerce.delx.ai/products/util-x402-price-drift-check",
      "intent_url": "https://commerce.delx.ai/intents/x402-price-drift-check-api",
      "machine_url": "https://commerce.delx.ai/intents/x402-price-drift-check-api.json",
      "input_schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "advertised_raw": {
            "type": "string",
            "maxLength": 8192,
            "description": "Advertised Raw supplied to X402 Price Drift Check; used only for this bounded calculation and processed in memory without retention."
          },
          "challenged_raw": {
            "type": "string",
            "maxLength": 8192,
            "description": "Challenged Raw supplied to X402 Price Drift Check; used only for this bounded calculation and processed in memory without retention."
          },
          "maximum_drift_raw": {
            "type": "string",
            "maxLength": 8192,
            "description": "Maximum Drift Raw supplied to X402 Price Drift Check; used only for this bounded calculation and processed in memory without retention."
          }
        },
        "required": [
          "advertised_raw",
          "challenged_raw",
          "maximum_drift_raw"
        ],
        "additionalProperties": false
      },
      "example_input": {
        "advertised_raw": "1000",
        "challenged_raw": "1000",
        "maximum_drift_raw": "0"
      },
      "agentcash_buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/x402-price-drift-check -m POST -H 'x-delx-source: discovery-pack-evaluate-x402-services-before-paying' --max-amount 0.001 -b '{\"advertised_raw\":\"1000\",\"challenged_raw\":\"1000\",\"maximum_drift_raw\":\"0\"}'"
    },
    {
      "tool_name": "util_x402_delivery_schema_check",
      "service_name": "X402 Delivery Schema Check",
      "category": "commercial-operations",
      "price_usdc": "0.001",
      "method": "POST",
      "route": "/api/v1/x402/x402-delivery-schema-check",
      "product_url": "https://commerce.delx.ai/products/util-x402-delivery-schema-check",
      "intent_url": "https://commerce.delx.ai/intents/x402-delivery-schema-check-api",
      "machine_url": "https://commerce.delx.ai/intents/x402-delivery-schema-check-api.json",
      "input_schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "result": {
            "type": "object",
            "maxProperties": 128,
            "additionalProperties": true,
            "description": "Result supplied to X402 Delivery Schema Check; used only for this bounded calculation and processed in memory without retention."
          },
          "required_fields": {
            "type": "array",
            "maxItems": 256,
            "items": {
              "type": "string",
              "maxLength": 8192
            },
            "description": "Required Fields supplied to X402 Delivery Schema Check; used only for this bounded calculation and processed in memory without retention."
          }
        },
        "required": [
          "result",
          "required_fields"
        ],
        "additionalProperties": false
      },
      "example_input": {
        "result": {
          "schema": "delx/example/v1",
          "value": 42
        },
        "required_fields": [
          "schema",
          "value"
        ]
      },
      "agentcash_buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/x402-delivery-schema-check -m POST -H 'x-delx-source: discovery-pack-evaluate-x402-services-before-paying' --max-amount 0.001 -b '{\"result\":{\"schema\":\"delx/example/v1\",\"value\":42},\"required_fields\":[\"schema\",\"value\"]}'"
    },
    {
      "tool_name": "util_x402_delivery_status_check",
      "service_name": "X402 Delivery Status Check",
      "category": "commercial-operations",
      "price_usdc": "0.001",
      "method": "POST",
      "route": "/api/v1/x402/x402-delivery-status-check",
      "product_url": "https://commerce.delx.ai/products/util-x402-delivery-status-check",
      "intent_url": "https://commerce.delx.ai/intents/x402-delivery-status-check-api",
      "machine_url": "https://commerce.delx.ai/intents/x402-delivery-status-check-api.json",
      "input_schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "type": "object",
        "properties": {
          "status": {
            "type": "integer",
            "description": "Status supplied to X402 Delivery Status Check; used only for this bounded calculation and processed in memory without retention."
          },
          "accepted_statuses": {
            "type": "array",
            "maxItems": 256,
            "items": {
              "type": "integer"
            },
            "description": "Accepted Statuses supplied to X402 Delivery Status Check; used only for this bounded calculation and processed in memory without retention."
          }
        },
        "required": [
          "status",
          "accepted_statuses"
        ],
        "additionalProperties": false
      },
      "example_input": {
        "status": 200,
        "accepted_statuses": [
          200,
          201
        ]
      },
      "agentcash_buy": "npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/x402-delivery-status-check -m POST -H 'x-delx-source: discovery-pack-evaluate-x402-services-before-paying' --max-amount 0.001 -b '{\"status\":200,\"accepted_statuses\":[200,201]}'"
    }
  ]
}