Tool detail

crs-transform

Transforms a coordinate pair between EPSG:4326 and EPSG:3857 using declared formulas.

Categories: Maps places

Use when

convert a lat/lon coordinate to Web Mercator or back

Not for

not for other CRS/projections — only EPSG:4326 and EPSG:3857 supported

Inputs

POST JSON body: { x: number, y: number, from_epsg: 4326|3857, to_epsg: 4326|3857 } (all required).

Admitted input schema

{
  "type": "object",
  "properties": {
    "from_epsg": {
      "type": "integer",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "enum": [
        4326,
        3857
      ]
    },
    "to_epsg": {
      "type": "integer",
      "minimum": -9007199254740991,
      "maximum": 9007199254740991,
      "enum": [
        4326,
        3857
      ]
    },
    "x": {
      "type": "number",
      "minimum": -1000000000,
      "maximum": 1000000000
    },
    "y": {
      "type": "number",
      "minimum": -1000000000,
      "maximum": 1000000000
    }
  },
  "required": [
    "x",
    "y",
    "from_epsg",
    "to_epsg"
  ],
  "additionalProperties": false
}

Endpoint

Method: POST
URL: https://geo.halowerk.com/v1/crs-transform

Payment

Protocol: x402
Listed price: 0.003 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: POST https://geo.halowerk.com/v1/crs-transform
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z