OSM Tag Key Search by Name (Taginfo)

osmtaginfo/search-keys

Searches the names of all OpenStreetMap tag keys for a word or fragment (for example 'highw', 'parking' or 'wheelchair') and returns matching keys with their total uses and uses as nodes, ways and relations, number of distinct values, number of users and whether the key is documented on the OSM wiki. Sorted by usage count (most used first) or alphabetically, paged 1 to 50 keys at a time; the total number of matches is reported. Data from OpenStreetMap contributors (ODbL), via OSM Taginfo; served by Eden Engine; not an official OpenStreetMap product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

OpenStreetMap

Data © OpenStreetMap contributors, available under the Open Database Licence (ODbL); statistics from OSM Taginfo (taginfo.openstreetmap.org). See openstreetmap.org/copyright. Served by Eden Engine; not an official OpenStreetMap product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

Install it Create an account

agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "osmtaginfo/search-keys" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "osmtaginfo/search-keys" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "osmtaginfo/search-keys", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "osmtaginfo/search-keys", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 24, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "query"
  ],
  "properties": {
    "rp": {
      "type": "integer",
      "default": 20,
      "maximum": 50,
      "minimum": 1,
      "description": "Results per page, 1 to 50. Defaults to 20."
    },
    "page": {
      "type": "integer",
      "default": 1,
      "maximum": 10000,
      "minimum": 1,
      "description": "Page number, starting at 1."
    },
    "query": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Word or fragment to look for in key names, for example 'highw' or 'parking'."
    },
    "sortname": {
      "enum": [
        "count_all",
        "key"
      ],
      "type": "string",
      "default": "count_all",
      "description": "Sort field: 'count_all' (total uses) or 'key' (alphabetical). Defaults to count_all."
    },
    "sortorder": {
      "enum": [
        "asc",
        "desc"
      ],
      "type": "string",
      "default": "desc",
      "description": "Sort direction. Defaults to desc."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "data"
  ],
  "properties": {
    "rp": {
      "type": "integer"
    },
    "url": {
      "type": "string",
      "description": "The upstream request URL."
    },
    "data": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "key": {
            "type": "string"
          },
          "in_wiki": {
            "type": "boolean"
          },
          "projects": {
            "type": "integer"
          },
          "count_all": {
            "type": "integer"
          },
          "users_all": {
            "type": "integer"
          },
          "count_ways": {
            "type": "integer"
          },
          "values_all": {
            "type": "integer",
            "description": "Number of distinct values."
          },
          "count_nodes": {
            "type": "integer"
          },
          "count_relations": {
            "type": "integer"
          },
          "count_all_fraction": {
            "type": "number"
          }
        },
        "additionalProperties": true
      },
      "description": "One entry per matching key on this page; empty when nothing matches."
    },
    "page": {
      "type": "integer"
    },
    "total": {
      "type": "integer",
      "description": "Total number of results."
    },
    "data_until": {
      "type": "string",
      "description": "UTC time of the newest OSM change included in the statistics."
    }
  },
  "additionalProperties": true
}