Tools (5)

get_county
search_counties
list_counties_by_state
get_states
report_feedback

get_county

Get detailed information about a US county by its 5-digit FIPS code.

Args:
fips: 5-digit FIPS code (e.g. "06037" for Los Angeles County, CA).

Returns:
Dictionary with county details including population, area, and county seat.

Parameter	Type	Required	Description
`fips`	`string`	required

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "get_county",
    "arguments": {
      "fips": "example"
    }
  }
}

search_counties

Search US counties by name (case-insensitive partial match).

Args:
query: Search string to match against county names.
limit: Maximum number of results to return (default 20).

Returns:
Dictionary with count and list of matching counties.

Parameter	Type	Required	Description
`query`	`string`	required
`limit`	`integer`	optional	(default: 20)

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "search_counties",
    "arguments": {
      "query": "example"
    }
  }
}

list_counties_by_state

List US counties in a given state, sorted by population descending.

Args:
state_code: Two-letter US state code (e.g. "CA", "TX", "NY").
limit: Maximum number of results to return (default 50).

Returns:
Dictionary with state, count, and list of counties.

Parameter	Type	Required	Description
`state_code`	`string`	required
`limit`	`integer`	optional	(default: 50)

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "list_counties_by_state",
    "arguments": {
      "state_code": "example"
    }
  }
}

get_states

List all US states in the dataset with their county counts.

Returns:
Dictionary with total state count and list of states with county counts.

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "get_states",
    "arguments": {}
  }
}

report_feedback

Report a bug, feature request, or general feedback for this data source.

Use this when something doesn't work as expected, when you'd like
a new feature, or when you have suggestions for improvement.

Args:
feedback: Describe the issue or suggestion.
feedback_type: One of 'bug', 'feature_request', or 'general'.

Parameter	Type	Required	Description
`feedback`	`string`	required
`feedback_type`	`string`	optional	(default: "general")

JSON-RPC Request

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "report_feedback",
    "arguments": {
      "feedback": "example"
    }
  }
}

Quick Start

Shell

curl -X POST "https://context.gnist.ai/mcp/us-county/" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "Gnist-API-Key: YOUR_API_KEY" \
  -d '{"jsonrpc": "2.0", "method": "tools/call", "id": 1, "params": {"name": "get_county", "arguments": {"fips": "example"}}}'

Python

import httpx

resp = httpx.post(
    "https://context.gnist.ai/mcp/us-county/",
    headers={"Gnist-API-Key": "YOUR_API_KEY", "Content-Type": "application/json"},
    json={
  "jsonrpc": "2.0",
  "method": "tools/call",
  "id": 1,
  "params": {
    "name": "get_county",
    "arguments": {
      "fips": "example"
    }
  }
},
)
print(resp.json())