Timezone Lookup API

Resolve a coordinate to its IANA timezone and return the current UTC offset, local wall time, DST status, and short abbreviation.

Overview

Resolve a coordinate to its IANA timezone and return the current UTC offset, local wall time, DST status, and short abbreviation. Query: lat (-90..90), lon (-180..180), at (optional ISO 8601 instant; defaults to now). Returns { tz, abbreviation, offsetMinutes, offsetHours, localTime, observesDst, isDst, januaryOffsetMinutes, julyOffsetMinutes, instant, source }. Polygon lookup against a CC0 timezone boundary index; offsets and DST come from the runtime tzdata so transition rules stay current. Use when scheduling for a coordinate, converting timestamps to local wall time, or checking whether a location is currently observing daylight saving.

Endpoint

Method	Endpoint	Price	Description
GET	/v1/marketplace/api/timezone-lookup-4095	$0.002875	Invoke Timezone Lookup (Geo) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i https://jarvisclaw.ai/v1/marketplace/api/timezone-lookup-4095

# 2. Pay it (the SDK signs and retries for you)
curl -H "X-PAYMENT: <signed-payload>" https://jarvisclaw.ai/v1/marketplace/api/timezone-lookup-4095

Parameters

Taken from the request example this API publishes.

Name	In	Type	Example
at	query	string	"example"
lat	query	number	-90
lon	query	number	-180

Example response

{
  "data": {
    "ok": true,
    "items": [
      {
        "tz": "example",
        "abbreviation": "example",
        "offsetMinutes": 1,
        "offsetHours": 1,
        "localTime": "example",
        "observesDst": false,
        "isDst": false,
        "januaryOffsetMinutes": 1,
        "julyOffsetMinutes": 1,
        "instant": "example"
      }
    ],
    "total": 1,
    "source": {
      "provider": "example",
      "url": "example",
      "license": "example"
    }
  },
  "meta": {
    "endpoint": "timezone.lookup",
    "version": null,
    "caller": "x402",
    "cost": {
      "usd": 0.0025
    },
    "settlement": {
      "txHash": "[redacted]",
      "network": "eip155:8453",
      "success": true
    }
  }
}

FAQ

How much does the Timezone Lookup API cost?

$0.002875 USDC per call, paid per call over x402. There is no subscription, minimum or monthly fee.

Do I need an API key?

No. Call the endpoint, read the 402 Payment Required quote, and repeat the request with a signed USDC payment header. An account API key also works if you prefer prepaid billing.

Which chains can I pay on?

USDC on Base or on Solana. The 402 quote lists the accepted networks and the exact amount; the JarvisClaw SDKs sign and retry for you.

How do I call it from an AI agent?

Send GET to the endpoint above from any HTTP client, or connect the JarvisClaw MCP server and let the agent find and call it with the search_apis and get_api_detail tools.

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• Match Key Address
• Address Parse
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