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mirrored listing x402 eip155:8453

Compute cryptographic hashes / checksums of a string or of raw bytes (base64)

Compute cryptographic hashes / checksums of a string or of raw bytes (base64). Returns lowercase hex for each requested algorithm: sha256 (default), sha512, sha1, md5. SHA via native Web Crypto; md5 and sha1 are offered for legacy interop only and flagged — not for security. POST so the input never lands in a URL/log. Verification/checksums only, not a hash cracker.

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1000 (raw units)
price
7
calls / 30d
4
unique payers
2026-09-07
updated

Provider

402utils.com · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 60
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "algorithms": [
            "sha256",
            "md5"
          ],
          "text": "hello world"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "bytes": 11,
          "hashes": {
            "md5": "5eb63bbbe01eeed093cb22bb8f5acdc3",
            "sha256": "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
          },
          "warnings": [
            "md5 is a legacy checksum — not collision-resistant; do not use it for security."
          ]
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "description": "Exactly one of `text` or `bytes`, plus an optional algorithm list.",
              "properties": {
                "algorithms": {
                  "default": [
                    "sha256"
                  ],
                  "description": "Which digests to compute (default [\"sha256\"]).",
                  "items": {
                    "enum": [
                      "sha256",
                      "sha512",
                      "sha1",
                      "md5"
                    ],
                    "type": "string"
                  },
                  "type": "array"
                },
                "bytes": {
                  "description": "Raw bytes as base64 (standard or url-safe) — alternative to `text`.",
                  "type": "string"
                },
                "text": {
                  "description": "UTF-8 text to hash.",
                  "type": "string"
                }
              },
              "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": {
                "bytes": {
                  "description": "Byte length of the hashed input.",
                  "type": "integer"
                },
                "hashes": {
                  "description": "Map of algorithm → lowercase hex digest.",
                  "type": "object"
                },
                "warnings": {
                  "description": "Present when a broken/legacy algorithm (md5, sha1) was requested.",
                  "items": {
                    "type": "string"
                  },
                  "type": "array"
                }
              },
              "required": [
                "bytes",
                "hashes"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://402utils.com/v1/hash"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://402utils.com/v1/hash");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://402utils.com/v1/hash")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/5892.json, and this resource appears in /discovery/resources and /discovery/search.