Api Endpoint

Sindri

Arbitrary-precision integer arithmetic (add, subtract, multiply, power) beyond IEEE-754 float precision, using native BigInt. Operands are passed as digit strings so precision is never lost in transit. For power, the combined magnitude (base digit count x exponent) is capped at 50000 to bound response size, in addition to the per-operand digit cap and exponent cap.

Open interactive test console

Offering

Provider: ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: General Utilities
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/bigNumberArithmetic
MIME type: Not provided
First seen: 2026-10-16T01:50:38.788Z
Last seen: 2026-11-01T15:00:18.976Z
Tags: big number arithmetic, arbitrary precision, bigint math

Website

Payment pricing

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

Payment option 1: 0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2: 0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x548eFd4f4d4A5C3669dbb4CBB2B1A637FeeEc5F6"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "APer2AbhckyMWyJanW2MZ2eRLcpL9Lmhks8rkmXfqjRG"
  }
]

Observed health

Status: Reachable
Latest latency: 30 ms
Average latency: 240 ms
HTTP status: 405
Last checked: 2026-11-04T20:29:30.892Z
Reachability: 100% over 14 checks

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

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "properties": {
        "a": {
          "description": "First operand, as a string of digits (optionally negative). Max 1000 digits.",
          "type": "string"
        },
        "b": {
          "description": "Second operand (or exponent for power), as a string of digits. Max 1000 digits (max 1000 for exponent on power).",
          "type": "string"
        },
        "operation": {
          "description": "Operation to perform.",
          "enum": [
            "add",
            "subtract",
            "multiply",
            "power"
          ],
          "type": "string"
        }
      },
      "required": [
        "a",
        "b",
        "operation"
      ],
      "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 schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "properties": {
            "a": {
              "description": "First operand, as a string of digits (optionally negative). Max 1000 digits.",
              "type": "string"
            },
            "b": {
              "description": "Second operand (or exponent for power), as a string of digits. Max 1000 digits (max 1000 for exponent on power).",
              "type": "string"
            },
            "operation": {
              "description": "Operation to perform.",
              "enum": [
                "add",
                "subtract",
                "multiply",
                "power"
              ],
              "type": "string"
            }
          },
          "required": [
            "a",
            "b",
            "operation"
          ],
          "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": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}