recreation.search

Search the Recreation Information Database (RIDB) — the single source of truth for federal recreation lands and programs across NPS, USFS, BLM, USACE, BOR, FWS, NARA. Pick a resource: recareas (designated recreation areas), facilities (individual sites — campgrounds, day-use, visitor centers), campsites (individual reservable campsites with attributes), permits (special-use permits, lotteries), tours, events, activities (taxonomy lookup). Filter by free-text query, state, activity ID, or lat/lon + radius (miles, max 50). Used by every federal-recreation-related agent: trip planning, permit chasers, fishing/hunting locator, campground availability tools.

price

$0.0012 USDC per call

method

GET/api/recreation/search

payment

x402 v2 · USDC on Base (EIP-3009) or Solana (SPL transfer)

auth

None. Sign the payment, retry with PAYMENT-SIGNATURE.

tier

Tier 0 — no paid upstream

Parameters

Name	Type	Description
`resource`required	string	one of: recareas \| facilities \| campsites \| permits \| tours \| events \| activities
`query`	string	min 1 chars · max 120 chars
`state`	string	min 2 chars · max 2 chars · match ^[A-Za-z]{2}$
`activity`	integer	min 1 · max 99999
`latitude`	number	min -90 · max 90
`longitude`	number	min -180 · max 180
`radius`	number	min 0.1 · max 50
`lastUpdated`	string	match ^\d{2}-\d{2}-\d{4}$
`limit`	integer	min 1 · max 50
`offset`	integer	min 0

Code samples

cURLbash

# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/recreation/search?resource=recareas&query=example&state=xx&activity=1&latitude=-90&longitude=-180&radius=0.1&lastUpdated=12345&limit=25&offset=0'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/recreation/search?resource=recareas&query=example&state=xx&activity=1&latitude=-90&longitude=-180&radius=0.1&lastUpdated=12345&limit=25&offset=0' \
  -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/recreation/search?resource=recareas&query=example&state=xx&activity=1&latitude=-90&longitude=-180&radius=0.1&lastUpdated=12345&limit=25&offset=0'

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.recreation.search({
  "resource": "recareas",
  "query": "example",
  "state": "xx",
  "activity": 1,
  "latitude": -90,
  "longitude": -180,
  "radius": 0.1,
  "lastUpdated": "12345",
  "limit": 25,
  "offset": 0
})

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.recreation.search(resource="recareas", query="example", state="xx", activity=1, latitude=-90, longitude=-180, radius=0.1, lastUpdated="12345", limit=25, offset=0)

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": "recreation.search",
    "arguments": {
      "resource": "recareas",
      "query": "example",
      "state": "xx",
      "activity": 1,
      "latitude": -90,
      "longitude": -180,
      "radius": 0.1,
      "lastUpdated": "12345",
      "limit": 25,
      "offset": 0
    }
  }
}

Discovery

/api/directory — full catalog of every endpoint
/openapi.json — OpenAPI 3.1 spec (per-op x-payment-info, x402Payment security)
/.well-known/x402 — machine-readable service descriptor for x402-aware crawlers
/.well-known/mcp/server-card.json — MCP SEP-1649 server card
/llms.txt — plain-text manifest for LLM ingestion

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.