Api Endpoint

Tanod utilpeek

Check WCAG color contrast: ratio and AA / AAA pass or fail for normal text, large text and UI components (utilpeek, Tanod). Use when an agent must check whether text and background colors meet WCAG AA or AAA contrast.

Open interactive test console

Offering

Provider: tanod.dev
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Development
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://tanod.dev/v1/color/contrast
MIME type: application/json
First seen: 2026-10-16T01:51:02.144Z
Last seen: 2026-11-03T23:44:00.894Z
Tags: color, contrast, utilpeek, fx-rates, qr-code

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2: 0.001 USDC
Atomic price: 1000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 3: 0.001 USDC
Atomic price: 1000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 4: 0.001 USDC
Atomic price: 1000000000000000 · Network: eip155:56 · Asset: USDC · Scheme: exact
Payment option 5: 0.001 USDC
Atomic price: 1000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Payment option 6: 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 7: 0.001 USDC
Atomic price: 1000 · Network: eip155:137 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "1000",
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "1000",
    "payTo": "RMk9k3VC8dr4hhjgFh88rGhjAbzfBzHxJJ5n2fTcqus"
  },
  {
    "scheme": "exact",
    "network": "eip155:56",
    "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
    "amount": "1000000000000000",
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "1000",
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "1000",
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720"
  }
]

Observed health

Status: Healthy
Latest latency: 281 ms
Average latency: 1887 ms
HTTP status: 204
Last checked: 2026-11-04T21:56:16.188Z
Reachability: 92.3% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "POST"
      ]
    },
    "bodyType": {
      "type": "string",
      "enum": [
        "json",
        "form-data",
        "text"
      ]
    },
    "body": {
      "additionalProperties": false,
      "properties": {
        "foreground": {
          "description": "The text or UI color, a CSS color: hex (#rgb, #rrggbb, #rrggbbaa), rgb() / rgba(), hsl() / hsla() or a CSS color name.",
          "maxLength": 64,
          "minLength": 1,
          "type": "string"
        },
        "background": {
          "description": "The background color it sits on, in the same CSS color formats.",
          "maxLength": 64,
          "minLength": 1,
          "type": "string"
        }
      },
      "required": [
        "foreground",
        "background"
      ],
      "type": "object"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "background": {
              "description": "The background color it sits on, in the same CSS color formats.",
              "maxLength": 64,
              "minLength": 1,
              "type": "string"
            },
            "foreground": {
              "description": "The text or UI color, a CSS color: hex (#rgb, #rrggbb, #rrggbbaa), rgb() / rgba(), hsl() / hsla() or a CSS color name.",
              "maxLength": 64,
              "minLength": 1,
              "type": "string"
            }
          },
          "required": [
            "foreground",
            "background"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method",
        "bodyType",
        "body"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "background": {
              "type": "string"
            },
            "composited": {
              "type": "boolean"
            },
            "foreground": {
              "type": "string"
            },
            "large_text": {
              "properties": {
                "aa": {
                  "type": "boolean"
                },
                "aaa": {
                  "type": "boolean"
                }
              },
              "type": "object"
            },
            "normal_text": {
              "properties": {
                "aa": {
                  "type": "boolean"
                },
                "aaa": {
                  "type": "boolean"
                }
              },
              "type": "object"
            },
            "note": {
              "type": "string"
            },
            "ratio": {
              "type": "number"
            },
            "ratio_text": {
              "type": "string"
            },
            "ratio_unrounded": {
              "type": "number"
            },
            "ui_components": {
              "properties": {
                "aa": {
                  "type": "boolean"
                }
              },
              "type": "object"
            }
          },
          "required": [
            "ratio",
            "normal_text",
            "large_text",
            "ui_components"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}