Smart Citizen Devices Near a Location
smartcitizen/nearby-devices
Smart Citizen community sensor devices nearest a latitude and longitude, closest first, 1 to 10 per call: name, city and country, whether online, hardware, owner, and each sensor's latest value and unit (temperature, humidity, noise, particulates, gases). The list includes offline and long-retired devices, so check last_reading_at and system_tags.
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 $5.
Data source
Sensor data from Smart Citizen (smartcitizen.me), the community air and environment sensing platform of Fab Lab Barcelona at IAAC; it states no data licence and no attribution rule, so the source is credited as a courtesy. Responses are passed through unmodified. Served by Eden Engine; not an official Smart Citizen 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.
// 1. search: find the tool
omnial_search({ query: "what you need" })
// 2. inspect: price and input schema
omnial_inspect({ tool: "smartcitizen/nearby-devices" })
// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "smartcitizen/nearby-devices" })
// 4. run: price the exact call first, then run it
omnial_execute({ tool: "smartcitizen/nearby-devices", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "smartcitizen/nearby-devices", input: { /* ... */ } })
// 5. settle: the call is charged when it finishes, nothing to doNot 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 21, 2026
Input and output schemas
Input schema
{
"type": "object",
"required": [
"latitude",
"longitude"
],
"properties": {
"latitude": {
"type": "number",
"maximum": 90,
"minimum": -90,
"description": "Centre latitude in decimal degrees, for example 41.39."
},
"per_page": {
"type": "integer",
"default": 5,
"maximum": 10,
"minimum": 1,
"description": "Devices to return, 1 to 10. Defaults to 5."
},
"longitude": {
"type": "number",
"maximum": 180,
"minimum": -180,
"description": "Centre longitude in decimal degrees, for example 2.17."
}
},
"additionalProperties": false
}Output schema
{
"type": "object",
"required": [
"results"
],
"properties": {
"results": {
"type": "array",
"items": {
"type": "object",
"required": [
"id",
"name",
"location"
],
"properties": {
"id": {
"type": "integer"
},
"data": {
"type": [
"object",
"null"
],
"properties": {
"sensors": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "integer"
},
"name": {
"type": "string"
},
"unit": {
"type": [
"string",
"null"
]
},
"value": {
"type": [
"number",
"null"
],
"description": "The latest reading, in `unit`."
},
"prev_value": {
"type": [
"number",
"null"
]
},
"description": {
"type": [
"string",
"null"
]
},
"measurement": {
"type": [
"object",
"null"
]
},
"last_reading_at": {
"type": [
"string",
"null"
]
}
},
"additionalProperties": true
}
}
},
"additionalProperties": true
},
"name": {
"type": "string"
},
"owner": {
"type": [
"object",
"null"
]
},
"state": {
"type": [
"string",
"null"
]
},
"hardware": {
"type": [
"object",
"null"
]
},
"location": {
"type": "object",
"properties": {
"city": {
"type": [
"string",
"null"
]
},
"country": {
"type": [
"string",
"null"
]
},
"exposure": {
"type": [
"string",
"null"
]
},
"latitude": {
"type": [
"number",
"null"
]
},
"longitude": {
"type": [
"number",
"null"
]
},
"country_code": {
"type": [
"string",
"null"
]
}
},
"additionalProperties": true
},
"description": {
"type": [
"string",
"null"
]
},
"system_tags": {
"type": "array",
"items": {
"type": "string"
},
"description": "Includes online or offline and indoor or outdoor."
},
"last_reading_at": {
"type": [
"string",
"null"
],
"description": "ISO 8601 UTC; null if the device never reported."
}
},
"additionalProperties": true
}
}
},
"description": "The devices, nearest first, in `results`.",
"additionalProperties": true
}