Annual international merchandise-trade flows from UN Comtrade (HS classification). Pass reporter (the country whose trade you want; ISO-2/ISO-3 like 'US'/'USA', a UN M49 number, or 'World'), optional partner (counterparty; default World), year (YYYY), flow (export|import), and commodity: 'TOTAL' (all goods, default), a specific HS code ('27', '8703'), or 'AG2'/'AG4'/'AG6' for a top-commodity breakdown at the 2/4/6-digit level. Returns trade value (USD), net weight, quantity, and the HS commodity, sorted by value. Country names are resolved from Comtrade's own reference data.
/api/trade/flowsPAYMENT-SIGNATURE.The flows API is a pay-per-call trade endpoint built for AI agents and autonomous software. Annual international merchandise-trade flows from UN Comtrade (HS classification).
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 flows data source for an agent tool-use loop, an MCP host, or a backend that needs trade data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
reporterrequired | string | Reporting country: ISO-2/ISO-3 ("US"/"USA"), UN M49 number, or "World". min 2 chars · max 40 chars |
partner | string | Partner/counterparty country (same formats). Default "World" (all partners aggregated). min 2 chars · max 40 chars |
yearrequired | string | Calendar year (YYYY). Comtrade annual data typically lags ~6-12 months. match ^\d{4}$ |
flow | string | Trade direction from the reporter's perspective. Default export. one of: export | import |
commodity | string | "TOTAL" (all goods, default), a specific HS code ("27", "8703"), or "AG2"/"AG4"/"AG6" for a top-commodity breakdown. min 2 chars · max 8 chars |
limit | integer | Max rows to return (1-100), sorted by trade value desc. Default 25. min 1 · max 100 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/trade/flows?reporter=xx&partner=World&year=12345&flow=export&commodity=TOTAL&limit=25' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/trade/flows?reporter=xx&partner=World&year=12345&flow=export&commodity=TOTAL&limit=25' \ -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/trade/flows?reporter=xx&partner=World&year=12345&flow=export&commodity=TOTAL&limit=25'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.trade.flows({
"reporter": "xx",
"partner": "World",
"year": "12345",
"flow": "export",
"commodity": "TOTAL",
"limit": 25
})
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.trade.flows(reporter="xx", partner="World", year="12345", flow="export", commodity="TOTAL", limit=25)
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": "trade.flows",
"arguments": {
"reporter": "xx",
"partner": "World",
"year": "12345",
"flow": "export",
"commodity": "TOTAL",
"limit": 25
}
}
}| Field | Type | Description |
|---|---|---|
ok | boolean | one of: true |
items | array | |
total | integer | Total matching rows upstream; null when unknown. |
source | object | |
meta | object |
{
"ok": true,
"items": [
{
"reporter": "example",
"reporterIso": "example",
"partner": "example",
"partnerIso": "example",
"flow": "example",
"period": "example",
"commodityCode": "example",
"commodity": "example",
"valueUsd": 1,
"netWeightKg": 1,
"quantity": 1,
"quantityUnit": "example"
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
},
"meta": {
"query": {
"reporter": "example",
"reporterCode": 1,
"partner": "example",
"partnerCode": 1,
"year": "example",
"flow": "example",
"commodity": "example"
}
}
}