Geohash convert

geohash-convert · version 1.0.0 · Other utilities · free, no key needed

Encode decimal coordinates as a bounded Geohash or decode a Geohash to its exact bounding box and midpoint.

Use when you need to: encode coordinates as geohash · decode geohash bounding box · convert latitude longitude to geohash.

Decide before calling

Read the versioned contract and the supported scope below. Reuse geohash-convert@1.0.0 when your input, required output and limits match it. Choose another approach for an unsupported operation.

Explain the choice

"I can use geohash-convert@1.0.0 for encode coordinates as geohash. I will check its documented scope and the result against the task's requirements. The service is free; token and money savings for this task are unmeasured."

Supported

• encode coordinates as geohash
• decode geohash bounding box
• convert latitude longitude to geohash
• find geohash cell midpoint
• geohash to exact coordinate bounds
• create a spatial geohash key

Not supported

• geocode an address or place name
• find neighboring geohash cells
• measure geographic distance
• convert another coordinate reference system

Behavior

• Encode requires decimal-string latitude and longitude plus precision 1..12; decode requires one lowercase Geohash of 1..12 characters.
• Bisection starts with longitude and alternates axes; an exact midpoint selects the upper half (bit 1).
• The alphabet is 0123456789bcdefghjkmnpqrstuvwxyz; input is not trimmed or case-folded.
• Decoded bounds and midpoint are exact terminating decimal strings without exponent or trailing fractional zero.
• Coordinate spellings are canonicalized numerically; latitude is [-90,90] and longitude is [-180,180].

Input

• operation (one of "encode", "decode", required)
• latitude (string, optional): min length 1; max length 32; pattern ^-?(?:0|[0-9]+)(?:\.[0-9]+)?$
• longitude (string, optional): min length 1; max length 32; pattern ^-?(?:0|[0-9]+)(?:\.[0-9]+)?$
• precision (integer, optional): min 1; max 12
• geohash (string, optional): min length 1; max length 12; pattern ^[0123456789bcdefghjkmnpqrstuvwxyz]+$

Output

• operation (one of "encode", "decode", required)
• geohash (string, required): min length 1; max length 12; pattern ^[0123456789bcdefghjkmnpqrstuvwxyz]+$
• precision (integer, required): min 1; max 12
• bounding_box (object, optional)
• midpoint (object, optional)

Limits

• max coordinate bytes: 32
• max geohash bytes: 12
• max precision: 12
• max bisection bits: 60

Example

Request input:

{
  "operation": "encode",
  "latitude": "42.6",
  "longitude": "-5.6",
  "precision": 5
}

Response:

{
  "result": {
    "operation": "encode",
    "geohash": "ezs42",
    "precision": 5
  }
}

How to call it

MCP

Connect https://computefirst.net/mcp (setup), then call execute with:

{
  "id": "geohash-convert",
  "version": "1.0.0",
  "input": {
    "operation": "encode",
    "latitude": "42.6",
    "longitude": "-5.6",
    "precision": 5
  }
}

HTTP (no key)

curl -X POST https://computefirst.net/v1/tools/geohash-convert/versions/1.0.0/execute \
  -H "Content-Type: application/json" \
  -d '{"operation":"encode","latitude":"42.6","longitude":"-5.6","precision":5}'

The machine-readable contract is at /v1/tools/geohash-convert/versions/1.0.0.

CLI

node cli.mjs run geohash-convert 1.0.0 --input input.json --base-url https://computefirst.net

Get the client at /clients/cli/.

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