# Geo Calc – Coordinate Format Converter

> Geo Calc – Coordinate Format Converter is a paid API for AI agents from geo-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).

Converts a geographic coordinate between decimal degrees (DD), degrees-minutes-seconds (DMS), and degrees-decimal-minutes (DDM) formats.

## Facts

- Endpoint: GET https://geo-calc.x402tookit.com/coord-format?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/geo-calc-coordinate-format-converter-e3f301fc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kmpFM0u4U7Cn-WaU-MU6d

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability geo-calc-coordinate-format-converter-e3f301fc
```

Example prompt: Convert the coordinate 40°42'46"N 74°0'21"W into all formats — decimal degrees, DDM, and DMS — so I can use it across different mapping tools.

## When to prefer this

Use this endpoint when you need to convert or normalize a geographic coordinate between DD, DMS, and DDM notation. It handles all three input formats automatically, so you don't need to pre-detect the format. Prefer this over manual parsing logic when input coordinates may come from mixed sources (GPS devices, nautical charts, survey equipment) using different notations.

## Known failure modes

- Invalid or unparseable coordinate string returns valid=false with reasons array explaining the issue
- Missing required 'coord' query parameter returns an error
- Coordinate out of valid WGS84 range (lat >90 or lon >180) flagged as invalid
- Ambiguous format (e.g. missing hemisphere indicator) may return degraded=true

## How this service works

Convert a coordinate pair between decimal degrees, degrees-minutes-seconds and degrees-decimal-minutes.

## Output

Returns all three coordinate representations (decimal degrees as numeric lat/lon, a combined DD string, DDM strings for lat and lon, and DMS strings for lat and lon), the detected input style, a validity flag, and optional reasons or warnings if the coordinate is malformed or degraded.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "coord"
     ],
     "properties": {
      "coord": {
       "type": "string",
       "description": "Any of: 40.7128, -74.0060 | 40°42'46\"N 74°0'21\"W | 40 42.767 N 74 0.35 W"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ddm": {
       "type": [
        "null",
        "string"
       ]
      },
      "dms": {
       "type": [
        "null",
        "string"
       ]
      },
      "lat": {
       "type": [
        "null",
        "number"
       ]
      },
      "lon": {
       "type": [
        "null",
        "number"
       ]
      },
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "valid": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "latDdm": {
       "type": [
        "null",
        "string"
       ]
      },
      "latDms": {
       "type": [
        "null",
        "string"
       ]
      },
      "lonDdm": {
       "type": [
        "null",
        "string"
       ]
      },
      "lonDms": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "inputStyle": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "t
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/geo-calc-coordinate-format-converter-e3f301fc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from geo-calc.x402tookit.com](https://www.zero.xyz/host/geo-calc.x402tookit.com/llms.txt)