Ground-truth soil profile for any US latitude/longitude from the USDA-NRCS SSURGO survey (Soil Data Access). Returns the soil map unit plus its component soil types ranked by composition percent, each with taxonomic order/class, drainage class, hydrologic group, and representative slope. Keyless, public-domain. Use for agronomy, land assessment, hydrology, septic/foundation suitability, and crop-fit reasoning. Coordinates over water or outside surveyed areas return an empty component list.
/api/soil/profilePAYMENT-SIGNATURE.The profile API is a pay-per-call soil endpoint built for AI agents and autonomous software. Ground-truth soil profile for any US latitude/longitude from the USDA-NRCS SSURGO survey (Soil Data Access).
There is no signup and no API key. An agent (or any HTTP client) hits the endpoint, receives an x402 "402 Payment Required" challenge, signs a sub-cent USDC payment on Base or Solana, and retries — the data comes back on the paid request. That makes it a drop-in profile data source for an agent tool-use loop, an MCP host, or a backend that needs soil data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
latrequired | number | min -90 · max 90 |
lonrequired | number | min -180 · max 180 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/soil/profile?lat=-90&lon=-180' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/soil/profile?lat=-90&lon=-180' \ -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/soil/profile?lat=-90&lon=-180'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.soil.profile({
"lat": -90,
"lon": -180
})
console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)import os
from twosio import TwoS
client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])
result = client.soil.profile(lat=-90, lon=-180)
print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)// 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": "soil.profile",
"arguments": {
"lat": -90,
"lon": -180
}
}
}| Field | Type | Description |
|---|---|---|
ok | boolean | one of: true |
items | array | |
total | integer | Total matching rows upstream; null when unknown. |
source | object |
{
"ok": true,
"items": [
{
"lat": 1,
"lon": 1,
"mapUnitKey": "example",
"mapUnitName": "example",
"components": [
{
"componentName": "example",
"componentPercent": 1,
"taxonomicOrder": "example",
"taxonomicClass": "example",
"drainageClass": "example",
"hydrologicGroup": "example",
"slopePct": 1
}
]
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
}
}