Live web search. Returns ranked results with title, URL, snippet description, site name, and page age — fresh information past any model training cutoff. Supports count (1-20), offset for paging, country (2-letter, e.g. US), freshness (pd=past day, pw=past week, pm=past month, py=past year, or a YYYY-MM-DDtoYYYY-MM-DD range), and safesearch (off/moderate/strict). Use for current events, fact verification, finding documentation, and research. Independent search index. For news-specific results with sources and timestamps see /api/news/search.
/api/search/webPAYMENT-SIGNATURE.The web API is a pay-per-call search endpoint built for AI agents and autonomous software. Live web search.
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 web data source for an agent tool-use loop, an MCP host, or a backend that needs search data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
qrequired | string | Search query. min 1 chars · max 400 chars |
count | integer | min 1 · max 20 |
offset | integer | min 0 · max 9 |
country | string | match ^[a-zA-Z]{2}$ |
freshness | string | match ^(pd|pw|pm|py|\d{4}-\d{2}-\d{2}to\d{4}-\d{2}-\d{2})$ |
safesearch | string | one of: off | moderate | strict |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/search/web?q=example&count=10&offset=0&country=example&freshness=2024-01-01&safesearch=off' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/search/web?q=example&count=10&offset=0&country=example&freshness=2024-01-01&safesearch=off' \ -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/search/web?q=example&count=10&offset=0&country=example&freshness=2024-01-01&safesearch=off'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.search.web({
"q": "example",
"count": 10,
"offset": 0,
"country": "example",
"freshness": "2024-01-01",
"safesearch": "off"
})
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.search.web(q="example", count=10, offset=0, country="example", freshness="2024-01-01", safesearch="off")
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": "search.web",
"arguments": {
"q": "example",
"count": 10,
"offset": 0,
"country": "example",
"freshness": "2024-01-01",
"safesearch": "off"
}
}
}| 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": [
{
"title": "example",
"url": "example",
"description": "example",
"siteName": "example",
"age": "example",
"language": "example"
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
},
"meta": {
"query": "example",
"moreAvailable": false
}
}