Resolve a song/recording from MusicBrainz (the open, CC0 music encyclopedia). Pass artist + title, or a free-text query (Lucene supported). Returns ranked recordings with MusicBrainz ID (MBID), title, primary artist, length (ms), first-release date, and disambiguation. Keyless, public-domain core data. Use to canonicalize a track to its MBID or cross-reference identity.
/api/music/recordingPAYMENT-SIGNATURE.The recording API is a pay-per-call music endpoint built for AI agents and autonomous software. Resolve a song/recording from MusicBrainz (the open, CC0 music encyclopedia).
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 recording data source for an agent tool-use loop, an MCP host, or a backend that needs music data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
artist | string | max 200 chars |
title | string | max 200 chars |
query | string | max 300 chars |
limit | integer | min 1 · max 25 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/music/recording?artist=example&title=example&query=example&limit=1' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/music/recording?artist=example&title=example&query=example&limit=1' \ -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/music/recording?artist=example&title=example&query=example&limit=1'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.music.recording({
"artist": "example",
"title": "example",
"query": "example",
"limit": 1
})
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.music.recording(artist="example", title="example", query="example", limit=1)
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": "music.recording",
"arguments": {
"artist": "example",
"title": "example",
"query": "example",
"limit": 1
}
}
}| Field | Type | Description |
|---|---|---|
ok | boolean | one of: true |
items | array | |
total | integer | Total matching rows upstream; null when unknown. |
source | object |
{
"ok": true,
"items": [
{
"mbid": "example",
"title": "example",
"artist": "example",
"lengthMs": 1,
"firstReleaseDate": "example",
"disambiguation": "example",
"score": 1
}
],
"total": 1,
"source": {
"provider": "example",
"url": "example",
"license": "example"
}
}