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Sign and broadcast an unsigned transaction on Base. Requires the sender's private key. Costs $0.01 USDC via x402.
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Based on SOC occupation classification
On-chain intelligence, transactions and wallet tools on Base. 9 x402-paywalled skills at $0.01 USDC each.
Get current USD price for any token on Base via Birdeye (CoinGecko fallback). Costs $0.01 USDC via x402.
Get ETH and USDC balances for any Ethereum address on Base. Costs $0.01 USDC via x402.
Chat with the Pinion AI agent. Send a messages array, get an AI response with web search. Costs $0.01 USDC via x402.
Check wallet balances and get funding instructions for Base. ETH and USDC. Costs $0.01 USDC via x402.
Construct an unsigned ETH or USDC transfer transaction on Base. Client signs and broadcasts. Costs $0.01 USDC via x402.
| name | pinion-broadcast |
| description | Sign and broadcast an unsigned transaction on Base. Requires the sender's private key. Costs $0.01 USDC via x402. |
Signs an unsigned transaction with the provided private key and broadcasts it to Base mainnet. Returns the transaction hash and Basescan link.
POST https://pinionos.com/skill/broadcast
Price: $0.01 USDC per call (x402 on Base)
{
"tx": {
"to": "0x7a21...",
"value": "0xb1a2bc2ec50000",
"data": "0x",
"chainId": 8453
},
"privateKey": "0x4b3f..."
}
| Field | Type | Required | Description |
|---|---|---|---|
| tx | object | yes | Unsigned transaction object (from /send or /trade skills) |
| tx.to | string | yes | Recipient or contract address |
| tx.value | string | no | ETH value in hex (default: "0x0") |
| tx.data | string | no | Calldata in hex (default: "0x") |
| tx.chainId | number | yes | Must be 8453 (Base mainnet) |
| privateKey | string | yes | Sender's private key (0x + 64 hex chars) |
curl -X POST https://pinionos.com/skill/broadcast \
-H "Content-Type: application/json" \
-d '{
"tx": {
"to": "0x7a21...",
"value": "0xb1a2bc2ec50000",
"data": "0x",
"chainId": 8453
},
"privateKey": "0x4b3f..."
}'
The first request returns HTTP 402 with payment requirements. Sign a USDC TransferWithAuthorization (EIP-3009) and retry with the X-PAYMENT header.
{
"txHash": "0xabc123...",
"explorerUrl": "https://basescan.org/tx/0xabc123...",
"from": "0x1234...",
"to": "0x7a21...",
"network": "base",
"status": "submitted",
"note": "Transaction submitted to Base. It may take a few seconds to confirm.",
"timestamp": "2026-02-17T12:00:00.000Z"
}
/send to transfer ETH or USDC -- pass the returned tx object here with the sender's private key to execute it./trade to swap tokens -- broadcast the approve tx first (if present), wait for confirmation, then broadcast the swap tx./send or /trade to get an unsigned transaction./broadcast with the unsigned tx and the private key.