Place search

Search OpenStreetMap for places by keyword, optionally restricted to a bounding box or country. Returns ranked hits with coordinates and place type — e.g. coffee shops in a city, airports in a region. ?q=coffee&viewbox=-122.52,37.81,-122.35,37.70&bounded=1.

Input

Field	Type	Description
q *	string	Free-form place query
limit	number	Results to return, 1-20 (default 5)
countryCodes	string	Comma-separated ISO-3166-1 alpha-2 codes (optional)
viewbox	string	Bounding box as 'west,north,east,south' (lon/lat). Optional.
bounded	string	If '1' and viewbox set, restrict strictly to box (default 0)

Example output

{
  "query": "Eiffel Tower",
  "count": 1,
  "results": [
    {
      "displayName": "Eiffel Tower, 5, Avenue Anatole France, Quartier du Gros-Caillou, Paris 7e Arrondissement, Paris, …, France",
      "lat": 48.8582599,
      "lon": 2.2945006,
      "type": "attraction",
      "class": "tourism",
      "importance": 0.84,
      "osm": "way/5013364",
      "boundingBox": {
        "south": 48.8574753,
        "north": 48.8590453,
        "west": 2.2933342,
        "east": 2.2956671
      }
    }
  ],
  "source": "nominatim.openstreetmap.org (ODbL)"
}

Try it — see the 402 challenge (free)

curl -i "https://agent402.tools/api/place-search?q=Eiffel+Tower&limit=3"

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/place-search?q=Eiffel+Tower&limit=3");

No wallet? Pay with compute

This is a pure-CPU tool, so an agent without a wallet can pay with proof-of-work instead of USDC: fetch a challenge, solve the sha256 puzzle (16 leading zero bits — a fraction of a second of CPU, no money, no AI tokens), and resend with the X-Pow-Solution header.

import { createHash } from "node:crypto";
const lz = (b) => { let t = 0; for (const x of b) { if (!x) { t += 8; continue; } t += Math.clz32(x) - 24; break; } return t; };
const c = await (await fetch("https://agent402.tools/api/pow/challenge?slug=place-search")).json();
let n = 0;
while (lz(createHash("sha256").update(c.challenge + ":" + n).digest()) < c.difficulty) n++;
await fetch("https://agent402.tools/api/place-search", { method: "GET", headers: { "X-Pow-Solution": c.token + ":" + n } });

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