poi.near

Find points of interest near a coordinate. Backed by OpenStreetMap via the Overpass API (free, public, ODbL). Returns name, OSM id (e.g. node/123 — deep-linkable to openstreetmap.org), latitude, longitude, distance in meters, composed street address (when present), phone, website, opening hours, brand, and cuisine tags. Results sorted nearest-first. Supported categories: restaurant, cafe, bar, fast_food, gas_station, ev_charging, parking, atm, bank, hospital, pharmacy, clinic, doctor, dentist, police, fire_station, post_office, library, toilets, school, university, supermarket, convenience, hotel, hostel, museum, attraction, park, playground. Query: lat (-90..90), lon (-180..180), category (one of the supported names), radius_m (1-10000, default 1000), limit (1-100, default 20).

price
$0.0010 USDC per call
method
GET/api/poi/near
payment
x402 v2 · EIP-3009 transferWithAuthorization · USDC on Base mainnet
auth
None. Sign the payment, retry with PAYMENT-SIGNATURE.
tier
Tier 0 — no paid upstream

Parameters

NameTypeDescription
latrequirednumber
min -90 · max 90
lonrequirednumber
min -180 · max 180
categoryrequiredstring
one of: restaurant | cafe | bar | fast_food | gas_station | ev_charging | parking | atm | bank | hospital | pharmacy | clinic | doctor | dentist | police | fire_station | post_office | library | toilets | school | university | supermarket | convenience | hotel | hostel | museum | attraction | park | playground
radius_minteger
min 1 · max 10000
limitinteger
min 1 · max 100

Code samples

cURLbash
# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/poi/near?lat=-90&lon=-180&category=restaurant&radius_m=1000&limit=20'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/poi/near?lat=-90&lon=-180&category=restaurant&radius_m=1000&limit=20' \
  -H 'PAYMENT-SIGNATURE: <base64-json-payload>'

# Or use the canonical runner (handles probe → sign → retry):
#   EVM_PRIVATE_KEY=0x... node --env-file=.env.local \
#     --experimental-strip-types scripts/x402-pay.ts \
#     'https://2s.io/api/poi/near?lat=-90&lon=-180&category=restaurant&radius_m=1000&limit=20'
TypeScript / Node — @2sio/sdktypescript
import { TwoS } from '@2sio/sdk'

const client = new TwoS({
  privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})

const result = await client.poi.near({
  "lat": -90,
  "lon": -180,
  "category": "restaurant",
  "radius_m": 1000,
  "limit": 20
})

console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)
Python — 2siopython
import os
from twosio import TwoS

client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])

result = client.poi.near(lat=-90, lon=-180, category="restaurant", radius_m=1000, limit=20)

print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)
MCP — Claude Desktop / AgentKit / any MCP hostjson
// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
//    EVM_PRIVATE_KEY funds x402 payments per call.

// claude_desktop_config.json
{
  "mcpServers": {
    "2sio": {
      "command": "npx",
      "args": ["-y", "@2sio/mcp"],
      "env": { "EVM_PRIVATE_KEY": "0x..." }
    }
  }
}

// 2. Once the server is running, agents call this tool via standard MCP:

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "poi.near",
    "arguments": {
      "lat": -90,
      "lon": -180,
      "category": "restaurant",
      "radius_m": 1000,
      "limit": 20
    }
  }
}

Discovery

2s.io is x402-native. Every call is paid per-request from a USDC-funded EVM wallet on Base — no signup, no API keys, no monthly fees. Source code: github.com/2s-io/sdk.