zFinia Machine API - Intelligence and Contract Utilities

payment-readyonline

payment-ready until 2026-11-05

Five pay-per-call services for agents: machine-economy changes since a cursor with provenance; flat-field data compatibility checks; WCAG colour-pair contrast calculation; Product JSON-LD/Offer evidence extraction from supplied HTML; and merchant service contract regression reports.

www.zfinia.com ↗

Call it x402 v2

x402 v2

Base URL: https://api.zfinia.com
Payment: x402 v2, header channel

$ curl -i -X POST 'https://api.zfinia.com/v1/intelligence/changes-since'

An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.

Endpoints 4 paid routes on api.zfinia.com

POST/v1/intelligence/changes-sinceBase$0.01since 09-14

POST/x402/v1/accessibility-contrast-calculatorBase$0.001since 09-21

POST/x402/v1/catalog-offer-evidence-extractorBase$0.10since 09-21

POST/x402/v1/data-compatibility-checkerBase$0.003since 09-21

Prices as captured in the 402 response: median $0.0065 across the 4 endpoints.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
Method	Path	Description	Price	Network	Asset	402 channel	Captured
POST	/v1/intelligence/changes-since	Return curated machine-economy developments covering x402 and agent commerce after a supplied cursor or since value. This delta feed includes material additions, corrections and retractions with provenance and nextCursor for caller-managed polling; an empty result is valid. No transaction feed, built-in scheduler, generic web search or exhaustive ecosystem monitoring.	$0.01	Base	USDC	header	since 09-14
POST	/x402/v1/accessibility-contrast-calculator	Calculate WCAG 2.x sRGB contrast for one caller-supplied foreground/background pair of hex colours (#RRGGBB). Returns JSON with the contrast ratio and AA/AAA threshold booleans for normal or large text. Does not assess a whole interface, support alpha colours or certify accessibility.	$0.001	Base	USDC	header	since 09-21
POST	/x402/v1/catalog-offer-evidence-extractor	Extract schema.org Product JSON-LD structured data from caller-supplied authorized public product-page HTML. Returns deterministic normalized Product/Offer JSON, including supplied price and currency when present, with source HTML and record SHA-256 hashes. Performs no URL fetching or browser execution; hashes do not prove authenticity and supplied prices may be stale.	$0.10	Base	USDC	header	since 09-21
POST	/x402/v1/data-compatibility-checker	Compare caller-supplied source and target flat field schemas before ingestion, migration, CI deployment or machine-to-machine handoff. Returns a deterministic JSON mismatch report with type incompatibilities, missing required fields, nullability warnings and remediation codes. Does not fetch data or validate nested schemas, data values or runtime API behaviour.	$0.003	Base	USDC	header	since 09-21

Payment evidence

402 payload captured at 2026-09-21 11:39:17 UTC. Check evidence JSON · Measurement methodology.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.zfinia.com/v1/intelligence/changes-since",
    "mimeType": "application/json",
    "description": "When your agent already checked zFinia and needs only material machine-economy changes since its last cursor, use this tool. Returns delta items and nextCursor for the next poll; empty items is valid. Pay 10000 atomic USDC on Base via exact x402. MCP does not pay."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "cursor": "2026-09-01T00:00:00.000Z",
            "maxItems": 3,
            "include_high_resolution": true
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "count": 1,
            "items": [
              {
                "eventId": "evt_x402_launch_20250506",
                "summary": "x402 uses HTTP 402 so agents can pay for APIs without accounts.",
                "headline": "Coinbase launches x402 HTTP-native payments",
                "freshness": "archive",
                "evidenceTier": "TIER_A"
              }
            ],
            "since": "2026-09-01T00:00:00.000Z",
            "schema": "zfinia-newswire-1",
            "product": "machine_economy_changes_since",
            "truncated": false,
            "nextCursor": "2026-09-07T00:00:00.000Z",
            "request_id": "example-request",
            "service_id": "machine_economy_changes_since",
            "generatedAt": "2026-09-07T00:00:00.000Z",
            "priceAtomic": "10000",
            "usageRights": "Caller may use returned JSON for their own systems.",
            "schemaVersion": "zfinia-newswire-1",
            "highResolution": true,
            "marketMovements": {
              "resourcesDelta": 0
            },
            "service_version": "1"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "anyOf": [
                  {
                    "required": [
                      "cursor"
                    ]
                  },
                  {
                    "required": [
                      "since"
                    ]
                  }
                ],
                "properties": {
                  "since": {
                    "type": "string",
                    "maxLength": 2048,
                    "minLength": 1,
                    "description": "Alias of cursor. Use the previous nextCursor so only later material changes are returned."
                  },
                  "cursor": {
                    "type": "string",
                    "maxLength": 2048,
                    "minLength": 1,
                    "description": "Previous nextCursor (opaque or ISO-8601). Required for the paid delta unless since is set. Pass this back on the next poll."
                  },
                  "maxItems": {
                    "type": "integer",
                    "maximum": 50,
                    "minimum": 1
                  },
                  "include_high_resolution": {
                    "type": "boolean",
                    "description": "When true, paid items include full evidence fields already present on the public newswire item."
                  }
                },
                "description": "Paid delta for a caller that already has a zFinia cursor. Supply cursor or since (the previous nextCursor).",
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "request_id",
                  "service_id",
                  "service_version",
                  "schema",
                  "generatedAt",
                  "since",
                  "nextCursor",
                  "count",
                  "items",
                  "truncated",
                  "usageRights"
                ],
                "properties": {
                  "count": {
                    "type": "integer"
                  },
                  "items": {
                    "type": "array"
                  },
                  "since": {
                    "type": "string"
                  },
                  "schema": {
                    "type": "string"
                  },
                  "product": {
                    "type": "string"
                  },
                  "truncated": {
                    "type": "boolean"
                  },
                  "nextCursor": {
                    "type": "string"
                  },
                  "request_id": {
                    "type": "string",
                    "description": "Delivery request identifier; also returned in x-foundry-request-id."
                  },
                  "service_id": {
                    "type": "string",
                    "description": "Canonical service identifier."
                  },
                  "generatedAt": {
                    "type": "string"
                  },
                  "priceAtomic": {
                    "type": "string"
                  },
                  "usageRights": {
                    "type": "string"
                  },
                  "schemaVersion": {
                    "type": "string"
                  },
                  "highResolution": {
                    "type": "boolean"
                  },
                  "marketMovements": {
                    "type": "object"
                  },
                  "service_version": {
                    "type": "string",
                    "description": "Version of the invoked service."
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Other captured 402 responses (3)

Captured payload 2 of 4

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
      "amount": "3000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.zfinia.com/x402/v1/data-compatibility-checker",
    "mimeType": "application/json",
    "description": "Gate a candidate flat field contract before ingestion, migration, CI deployment, or machine-to-machine handoff; returns deterministic incompatibility codes and remediation actions for caller-supplied fields without fetching data or claiming full API validation."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "source_fields": [
              {
                "name": "order_id",
                "type": "string",
                "nullable": false,
                "required": true
              },
              {
                "name": "customer_id",
                "type": "string",
                "nullable": true,
                "required": true
              },
              {
                "name": "amount_cents",
                "type": "string",
                "nullable": false,
                "required": true
              },
              {
                "name": "created_at",
                "type": "string",
                "nullable": false,
                "required": true
              }
            ],
            "target_fields": [
              {
                "name": "order_id",
                "type": "string",
                "nullable": false,
                "required": true
              },
              {
                "name": "customer_id",
                "type": "string",
                "nullable": false,
                "required": true
              },
              {
                "name": "amount_cents",
                "type": "integer",
                "nullable": false,
                "required": true
              },
              {
                "name": "currency",
                "type": "string",
                "nullable": false,
                "required": true
              },
              {
                "name": "created_at",
                "type": "string",
                "nullable": false,
                "required": true
              }
            ],
            "comparison_mode": "backward_compatible",
            "canonicalization": "exact",
            "contract_version": "1"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "issues": [
              {
                "code": "TYPE_MISMATCH",
                "field": "amount_cents",
                "severity": "error",
                "source_type": "string",
                "target_type": "integer"
              },
              {
                "code": "MISSING_REQUIRED_FIELD",
                "field": "currency",
                "severity": "error"
              },
              {
                "code": "NULLABILITY_NARROWING",
                "field": "customer_id",
                "severity": "warning"
              }
            ],
            "compatible": false,
            "request_id": "example-request",
            "service_id": "data_compatibility_checker",
            "assumptions": [
              "Source fields represent data offered by the caller; target fields represent the receiving contract."
            ],
            "issue_count": 3,
            "limitations": [
              "Structural field compatibility only; values, nested object shapes, semantic meaning, API behavior, and agent-output quality are not inspected."
            ],
            "remediations": [
              {
                "code": "TYPE_MISMATCH",
                "field": "amount_cents",
                "action": "CHANGE_SOURCE_FIELD_TYPE"
              },
              {
                "code": "MISSING_REQUIRED_FIELD",
                "field": "currency",
                "action": "ADD_REQUIRED_SOURCE_FIELD"
              },
              {
                "code": "NULLABILITY_NARROWING",
                "field": "customer_id",
                "action": "DISALLOW_NULL_SOURCE_VALUES"
              }
            ],
            "comparison_mode": "backward_compatible",
            "service_version": "1.0.0",
            "canonicalization": {
              "field_names": "exact",
              "changed_names": []
            },
            "contract_version": "1",
            "checked_source_fields": 4,
            "checked_target_fields": 5
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "source_fields",
                  "target_fields"
                ],
                "properties": {
                  "source_fields": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "name",
                        "type",
                        "required",
                        "nullable"
                      ],
                      "properties": {
                        "name": {
                          "type": "string",
                          "pattern": "^[A-Za-z][A-Za-z0-9_]{0,63}$"
                        },
                        "type": {
                          "enum": [
                            "string",
                            "number",
                            "integer",
                            "boolean",
                            "object",
                            "array"
                          ],
                          "type": "string"
                        },
                        "nullable": {
                          "type": "boolean"
                        },
                        "required": {
                          "type": "boolean"
                        }
                      },
                      "additionalProperties": false
                    },
                    "maxItems": 100,
                    "minItems": 1
                  },
                  "target_fields": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "name",
                        "type",
                        "required",
                        "nullable"
                      ],
                      "properties": {
                        "name": {
                          "type": "string",
                          "pattern": "^[A-Za-z][A-Za-z0-9_]{0,63}$"
                        },
                        "type": {
                          "enum": [
                            "string",
                            "number",
                            "integer",
                            "boolean",
                            "object",
                            "array"
                          ],
                          "type": "string"
                        },
                        "nullable": {
                          "type": "boolean"
                        },
                        "required": {
                          "type": "boolean"
                        }
                      },
                      "additionalProperties": false
                    },
                    "maxItems": 100,
                    "minItems": 1
                  },
                  "comparison_mode": {
                    "enum": [
                      "backward_compatible",
                      "exact"
                    ],
                    "type": "string"
                  },
                  "canonicalization": {
                    "enum": [
                      "exact",
                      "ascii_case_insensitive"
                    ],
                    "type": "string"
                  },
                  "contract_version": {
                    "enum": [
                      "1"
                    ],
                    "type": "string"
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "request_id",
                  "service_id",
                  "service_version",
                  "contract_version",
                  "comparison_mode",
                  "canonicalization",
                  "compatible",
                  "issue_count",
                  "issues",
                  "remediations",
                  "checked_source_fields",
                  "checked_target_fields",
                  "assumptions",
                  "limitations"
                ],
                "properties": {
                  "issues": {
                    "type": "array"
                  },
                  "compatible": {
                    "type": "boolean"
                  },
                  "request_id": {
                    "type": "string",
                    "description": "Delivery request identifier; also returned in x-foundry-request-id."
                  },
                  "service_id": {
                    "type": "string",
                    "description": "Canonical service identifier."
                  },
                  "assumptions": {
                    "type": "array"
                  },
                  "issue_count": {
                    "type": "integer"
                  },
                  "limitations": {
                    "type": "array"
                  },
                  "remediations": {
                    "type": "array"
                  },
                  "comparison_mode": {
                    "type": "string"
                  },
                  "service_version": {
                    "type": "string",
                    "description": "Version of the invoked service."
                  },
                  "canonicalization": {
                    "type": "object"
                  },
                  "contract_version": {
                    "type": "string"
                  },
                  "checked_source_fields": {
                    "type": "integer"
                  },
                  "checked_target_fields": {
                    "type": "integer"
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 4

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.zfinia.com/x402/v1/accessibility-contrast-calculator",
    "mimeType": "application/json",
    "description": "Calculate WCAG 2.x sRGB contrast for one caller-supplied colour pair; no interface-wide accessibility claim is made."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "background": "#ffffff",
            "foreground": "#000000",
            "large_text": false
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "wcag_aa": true,
            "wcag_aaa": true,
            "large_text": false,
            "request_id": "example-request",
            "service_id": "accessibility_contrast_calculator",
            "limitations": [
              "Calculation uses WCAG 2.x sRGB contrast; it does not assess full interface accessibility."
            ],
            "contrast_ratio": 21,
            "service_version": "1.0.0"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "foreground",
                  "background",
                  "large_text"
                ],
                "properties": {
                  "background": {
                    "type": "string",
                    "pattern": "^#[0-9a-fA-F]{6}$"
                  },
                  "foreground": {
                    "type": "string",
                    "pattern": "^#[0-9a-fA-F]{6}$"
                  },
                  "large_text": {
                    "type": "boolean"
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "request_id",
                  "service_id",
                  "service_version",
                  "contrast_ratio",
                  "wcag_aa",
                  "wcag_aaa",
                  "large_text",
                  "limitations"
                ],
                "properties": {
                  "wcag_aa": {
                    "type": "boolean"
                  },
                  "wcag_aaa": {
                    "type": "boolean"
                  },
                  "large_text": {
                    "type": "boolean"
                  },
                  "request_id": {
                    "type": "string",
                    "description": "Delivery request identifier; also returned in x-foundry-request-id."
                  },
                  "service_id": {
                    "type": "string",
                    "description": "Canonical service identifier."
                  },
                  "limitations": {
                    "type": "array"
                  },
                  "contrast_ratio": {
                    "type": "number"
                  },
                  "service_version": {
                    "type": "string",
                    "description": "Version of the invoked service."
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 4 of 4

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x25e8245f07d5e4873987293dad666afbe56a9608",
      "amount": "100000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.zfinia.com/x402/v1/catalog-offer-evidence-extractor",
    "mimeType": "application/json",
    "description": "Convert caller-supplied authorized public product-page HTML containing schema.org Product JSON-LD into normalized Product/Offer evidence with SHA-256 provenance; no URL fetching, browser execution, or price-currentness claim."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "html": "<script type=\"application/ld+json\">{\"@context\":\"https://schema.org\",\"@type\":\"Product\",\"name\":\"Widget\",\"offers\":{\"@type\":\"Offer\",\"price\":\"19.95\",\"priceCurrency\":\"USD\"}}</script>",
            "source_url": "https://example.com/products/widget"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "source": {
              "url": "https://example.com/products/widget",
              "sha256": "sha256-of-caller-supplied-html",
              "observed_at": "2026-08-23T00:00:00.000Z"
            },
            "product": {
              "sku": null,
              "name": "Widget",
              "brand": null,
              "offer": {
                "url": "https://example.com/products/widget",
                "price": "19.95",
                "availability": null,
                "price_currency": "USD"
              }
            },
            "version": "1.0.0",
            "evidence": {
              "method": "schema_org_product_jsonld",
              "model_calls": 0,
              "record_sha256": "sha256-of-normalized-record",
              "source_sha256": "sha256-of-caller-supplied-html",
              "network_fetches": 0
            },
            "capability_id": "public_catalog_offer_evidence"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "source_url",
                  "html"
                ],
                "properties": {
                  "html": {
                    "type": "string",
                    "maxLength": 262144
                  },
                  "source_url": {
                    "type": "string",
                    "format": "uri",
                    "maxLength": 2048
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "capability_id",
                  "version",
                  "source",
                  "product",
                  "evidence"
                ],
                "properties": {
                  "source": {
                    "type": "object"
                  },
                  "product": {
                    "type": "object"
                  },
                  "version": {
                    "type": "string"
                  },
                  "evidence": {
                    "type": "object"
                  },
                  "capability_id": {
                    "const": "public_catalog_offer_evidence"
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

85/100 Solid

                           │         │     ···│···
0                          55        75       93

                │     │   ·│··
0               55    75   93

#160 of 446 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability: 98.4% uptime 30d
Compliance: A 14/14 checks pass
Price: $0.001 to $0.10 p9 in Data
Risk: clean no risk flag
Traction: $25.03 30d 11 buyers, top buyer 97% (address, not entity) Concentrated volume: 99% of 30d volume from 3 wallets

14/14 compliance checks

402 payload captured
accepts[] array present
payTo address recoverable
payTo at accepts[0].payTo (conformant shape)
payTo is a valid on-chain address
atomic price declared
atomic price in a sane range
asset (token) address declared
network resolves to CAIP-2
payment scheme declared
served over HTTPS
declares the current x402 version (2)
EIP-712 domain parameters present on every EVM entry
x402 v2 envelope delivered in the payment-required header

402 terms unchanged since 2026-09-21. Last up 2026-10-29.

── Site signals

homepage reachable
openapi doc
pricing page
llms.txt
robots.txt
terms page

How the score works

What the score read on this service: status online, 98.4% uptime 30d, 2647ms response p95, x402 compliance 14 of 14, $0.001 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 446 listings, this one among them: the same 446 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Settled via coinbase ($25.03, 224 tx). Traction is a conservative undercount; first settlement seen 2026-08-18.

All measured facts

What it does

zFinia Machine API - Intelligence and Contract Utilities is a listed x402 Data API. Captured payment terms name Base. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.

Assessment computed at 2026-10-29 23:03:13 UTC. Latest service check observed at 2026-10-29 23:46:40 UTC. Service data JSON · Measurement methodology.

Page rendered at 2026-10-29 23:58:07 UTC. This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: 2026-10-29 23:46:40 UTC. Latest price capture: 2026-09-21 11:23:16 UTC. Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.

Assessment computed at 2026-10-29 23:03:13 UTC. Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.

Observed daily coverage: 2026-09-30 to 2026-10-29 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: 2026-10-27 10:07:33 UTC. Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.

x402 List home · Services · Data

uptime · latest daily rollup: 100%
uptime 7d: 100%
uptime 30d: 98.4%
uptime 90d: 98.4%
response p95: 2647ms
avg response: 1433ms
total checks: 3,007

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

price (min): $0.001
price (max): $0.10
category percentile (min): p9 in Data
category percentile (max): p71 in Data
endpoints / prices: 4 / 4
model: tiered
stability: 100%

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age: -
registrar: -
hosting: custom
domain created: ---

Identity facts, not a risk score.

assessment volume 30d: $25.03
exact assessment volume 30d (USD): 25.033
assessment recorded at (UTC): 2026-10-29T23:03:13.525Z
buyers 30d: 11
settlements 30d: 224
measured since: 2026-08-18 (start of our harvest window)
last settlement: 2026-10-27
top buyer share: 97% of 30d volume (address, not entity)
top 3 buyers share: 99% of 30d volume (addresses, not entities)
concentrated volume: yes
trend 7d vs 30d: 0.02x the 30d daily rate
networks: eip155:8453
volume all-time: $25.38
settlements all-time: 261
median settlement 30d: $0.12
max settlement 30d: $0.30

Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Concentrated volume is one rule applied to every listed service: the 3 largest paying addresses hold at least 90% of 30d volume, with at least $10 of volume and 50 settlements in the same 30 days. While it applies, this service's volume counts as 0 in the Recommended and Highest volume sorts of the services list. The label says where the payments came from, not why.

Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.

member since: 2026-09-14

Recent checks

Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)	Status	HTTP	Response	Endpoints
2026-10-29 23:46:40 UTC	Online	402	321ms	4
2026-10-29 23:30:38 UTC	Online	402	170ms	4
2026-10-29 23:14:38 UTC	Online	402	270ms	4
2026-10-29 22:58:38 UTC	Online	402	182ms	4
2026-10-29 22:42:44 UTC	Online	402	326ms	4
2026-10-29 22:26:41 UTC	Online	402	245ms	4
2026-10-29 22:10:47 UTC	Online	402	229ms	4
2026-10-29 21:54:45 UTC	Online	402	320ms	4
2026-10-29 21:38:50 UTC	Online	402	211ms	4
2026-10-29 21:22:45 UTC	Online	402	338ms	4
2026-10-29 21:06:50 UTC	Online	402	366ms	4
2026-10-29 20:49:46 UTC	Online	402	199ms	4
2026-10-29 20:33:45 UTC	Online	402	184ms	4
2026-10-29 20:17:48 UTC	Online	402	243ms	4
2026-10-29 20:01:46 UTC	Online	402	257ms	4
2026-10-29 19:45:55 UTC	Online	402	2601ms	4
2026-10-29 19:28:43 UTC	Online	402	189ms	4
2026-10-29 19:12:40 UTC	Online	402	177ms	4

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $25.03, peak $23.16 on 10-04

                   $23.16                                                                        
                   ██                                                                            
                   ██                                                                            
                   ██                                                                            
                   ██                                                                            
       ▁▁ ·  ▁▁ ▁▁ ██ ▂▂ ·  ▁▁ ▁▁ ·  ·  ·     ▁▁    ▁▁ ·     ·  ▁▁ ·  ▁▁ ·  ▁▁ ▁▁ ·  ▁▁ ▁▁ ·  ·  
    $0

volume no data in the payload

Distinct buyers per dayDistinct buyers per day

        3  ·  3  1  1  2  ·  1  1  ·  ·  ·  1  1  1  1  ·  1  ·  1  ·  1  ·  1  1  ·  1  1  ·  ·

Uptime 9 of 29 completed days below 100%

       ██ ██ ▇▇ ██ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ██ ██ ▇▇ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██

uptime below 100%, to scale

       09-30                                     10-14                                   10-29*

Volume 30d: $25.03
Uptime: 9 of 29 completed days below 100%

Daily on-chain settlement volume in US dollars, 2026-09-30 to 2026-10-29; highest day $23.16 on 10-04; 12 days have no data in the payload; distinct buyers per day

Day    Volume             USD  Buyers
09-30                   $0.13       3
10-01  · no data
10-02                   $0.10       3
10-03                   $0.06       1
10-04                  $23.16       1
10-05                   $1.21       2
10-06  · no data
10-07                   $0.10       1
10-08                   $0.01       1
10-09  · no data, 3 days to 10-11
10-12                  $0.00†       1
10-13                   $0.03       1
10-14                  $0.00†       1
10-15                   $0.01       1
10-16  · no data
10-17                  $0.00†       1
10-18  · no data
10-19                   $0.03       1
10-20  · no data
10-21                   $0.01       1
10-22  · no data
10-23                   $0.01       1
10-24                   $0.01       1
10-25  · no data
10-26                   $0.05       1
10-27                   $0.03       1
10-28  · no data, 2 days to 10-29*

More charts

Response time daily average, ms min 718ms, avg 1338ms, max 2308ms

       ██ ██ ▇▇ ▇▇ ▇▇ ▇▇ ██ ▇▇ ▇▇ ▇▇ ▆▆ ▃▃ ▃▃ ▃▃ ▂▂ ▃▃ ▃▃ ▃▃ ▃▃ ▃▃ ▃▃ ▃▃ ▃▃ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▃▃

09-30 to 10-29* UTC

      ██▇▇▇▇█▇▇▇▆▃▃▃▂▃▃▃▃▃▃▃▃▄▄▄▄▄▄▃

      09-30         10-14     10-29*

Scores over time

x402 compliance low 14/14, high 14/14

       ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄

09-30 to 10-29* UTC

      ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

      09-30         10-14     10-29*

Price percentile in Data own low to high; exact values below

       ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁

09-30 to 10-29* UTC

      ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

      09-30         10-14     10-29*

Site signals present (of 6) own low to high; exact values below

       ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▆▆ ▆▆ ▆▆ ▆▆ ▁▁ ▁▁ ▇▇ ▇▇ ▇▇ ▇▇ ▆▆ ▆▆ ▆▆ ▆▆ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇ ▇▇

09-30 to 10-29* UTC

      ▇▇▇▇▇▆▆▆▆▁▁▇▇▇▇▆▆▆▆▇▇▇▇▇▇▇▇▇▇▇

      09-30         10-14     10-29*

       09-30                                     10-14                                   10-29*

      09-30         10-14     10-29*

Scores: one day per column, 09-30 to 10-29*, on the columns of Response time. Uptime held below 100% on some days in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/zfinia-machine-economy-intelligence/price, /scores, /volume and /buyers.

Values

* today so far, partial (UTC).

The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.

Daily snapshot total, 30d: $24.95, peak $23.16 on 10-04. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.

Daily address snapshots: 2026-09-30 to 2026-10-29 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here. † marks a recorded $0.00 with settlements.

Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.

Assessment history last recorded at 2026-10-29 23:03:13 UTC. Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-09-30 to 2026-10-29: address settlement volume in USD, distinct buyer and settlement counts, uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
Day	Volume	Buyers	Settlements	Uptime	Response	Compliance	Price percentile	Site signals
2026-09-30	$0.13	3	3	100%	2308.48ms	14/14	p10	5/6
2026-10-01	no data	no data	no data	100%	2274.88ms	14/14	p10	5/6
2026-10-02	$0.10	3	20	97.78%	1904.91ms	14/14	p10	5/6
2026-10-03	$0.06	1	1	100%	2013.11ms	14/14	p10	5/6
2026-10-04	$23.16	1	149	94.44%	1962.85ms	14/14	p10	5/6
2026-10-05	$1.21	2	22	91.01%	1947.12ms	14/14	p10	4/6
2026-10-06	no data	no data	no data	88.89%	2217.34ms	14/14	p10	4/6
2026-10-07	$0.10	1	2	98.89%	2054.72ms	14/14	p10	4/6
2026-10-08	$0.01	1	3	93.33%	1919.04ms	14/14	p10	4/6
2026-10-09	no data	no data	no data	92.22%	1970.30ms	14/14	p10	0/6
2026-10-10	no data	no data	no data	97.78%	1791.13ms	14/14	p10	0/6
2026-10-11	no data	no data	no data	100%	931.39ms	14/14	p10	5/6
2026-10-12	$0.00 recorded†	1	1	100%	833.47ms	14/14	p10	5/6
2026-10-13	$0.03	1	1	98.89%	764.66ms	14/14	p10	5/6
2026-10-14	$0.00 recorded†	1	1	100%	717.88ms	14/14	p9	5/6
2026-10-15	$0.01	1	3	100%	727.11ms	14/14	p9	4/6
2026-10-16	no data	no data	no data	100%	823.53ms	14/14	p9	4/6
2026-10-17	$0.00 recorded†	1	1	100%	814.02ms	14/14	p9	4/6
2026-10-18	no data	no data	no data	100%	883.08ms	14/14	p9	4/6
2026-10-19	$0.03	1	3	100%	929.47ms	14/14	p9	5/6
2026-10-20	no data	no data	no data	100%	805.78ms	14/14	p9	5/6
2026-10-21	$0.01	1	1	100%	916.38ms	14/14	p9	5/6
2026-10-22	no data	no data	no data	100%	1009.74ms	14/14	p9	5/6
2026-10-23	$0.01	1	2	100%	1093.15ms	14/14	p9	5/6
2026-10-24	$0.01	1	1	100%	1121.46ms	14/14	p9	5/6
2026-10-25	no data	no data	no data	100%	1258.64ms	14/14	p9	5/6
2026-10-26	$0.05	1	1	100%	1037.98ms	14/14	p9	5/6
2026-10-27	$0.03	1	5	100%	1032.65ms	14/14	p9	5/6
2026-10-28	no data	no data	no data	100%	1210.66ms	14/14	p9	5/6
2026-10-29*	no data	no data	no data	100%	863.29ms	14/14	p9	5/6

Alternatives in Data

Money Reactor strong 99/100 100% up 30d --- 30d

Weather strong 98/100 100% up 30d --- 30d

Grizzly Agent Tools strong 97/100 100% up 30d --- 30d

PNDA strong 97/100 100% up 30d --- 30d

claw402 strong 97/100 100% up 30d $1.2k 30d

5 of 445 other ranked services in Data, ordered by the same measured score.

see the whole category

Own this service?

Keep this listing accurate. Ownership is proven with a domain check and every change is reviewed by hand.

Update this listing

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

Verify this service ($0.25)

Embed a badge

HTML

<a href="https://x402-list.com/services/zfinia-machine-economy-intelligence?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/zfinia-machine-economy-intelligence.svg" alt="zFinia Machine API - Intelligence and Contract Utilities listed on x402-list" height="28">
</a>

Markdown

[![zFinia Machine API - Intelligence and Contract Utilities on x402-list](https://x402-list.com/badge/zfinia-machine-economy-intelligence.svg)](https://x402-list.com/services/zfinia-machine-economy-intelligence?utm_source=badge&utm_medium=referral&utm_campaign=embed)

HTML, live uptime variant

<a href="https://x402-list.com/services/zfinia-machine-economy-intelligence?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/zfinia-machine-economy-intelligence.svg?data=uptime" alt="zFinia Machine API - Intelligence and Contract Utilities uptime on x402-list" height="28">
</a>

Delisting

To request delisting, email info@x402-list.com with the service name, slug, or URL. Removal is free and does not require proof of ownership. See all free email requests.