Run up to 50 endpoint calls behind ONE x402 payment. Price is the exact sum of the sub-call prices (no batch discount). Atomic: every sub-call must succeed or nothing is charged — the failing calls are returned and you can retry for free. Eligible sub-calls are ordinary catalog endpoints (no bearer-only, deprecated, variable-priced, or metered-upstream endpoints, and no nested batch).
/api/batch/runPAYMENT-SIGNATURE.The run API is a pay-per-call batch endpoint built for AI agents and autonomous software. Run up to 50 endpoint calls behind ONE x402 payment.
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 run data source for an agent tool-use loop, an MCP host, or a backend that needs batch data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
callsrequired | array |
# 1. Probe the endpoint with no auth — receive 402 with PaymentRequirements
curl -sS -X POST 'https://2s.io/api/batch/run' \
-H 'Content-Type: application/json' \
-d '{"calls":[{"endpoint":"xxx","params":{}}]}'
# 2. Sign the EIP-3009 transferWithAuthorization for the advertised price +
# payTo from the 402 envelope, then retry with PAYMENT-SIGNATURE:
curl -sS -X POST 'https://2s.io/api/batch/run' \
-H 'Content-Type: application/json' \
-H 'PAYMENT-SIGNATURE: <base64-json-payload>' \
-d '{"calls":[{"endpoint":"xxx","params":{}}]}'
# Or just use the canonical runner — it handles the whole loop:
# EVM_PRIVATE_KEY=0x... node --env-file=.env.local \
# --experimental-strip-types scripts/x402-pay.ts \
# 'https://2s.io/api/batch/run'import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.batch.run({
"calls": [
{
"endpoint": "xxx",
"params": {}
}
]
})
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.batch.run(calls=[{"endpoint":"xxx","params":{}}])
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": "batch.run",
"arguments": {
"calls": [
{
"endpoint": "xxx",
"params": {}
}
]
}
}
}| 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": [
{
"endpoint": "example",
"ok": true,
"price_usd": 1
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
},
"meta": {
"count": 1,
"total_price_usd": 1,
"pricing": "example",
"atomic": "example"
}
}