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QuantaFlow Blockchair API Gateway (x402)
x402
QuantaFlow Blockchair API Gateway (x402) is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-16).
Proxies requests to the Blockchair blockchain explorer API via an x402 micropayment-gated gateway, charging $0.01 USDC per call.
Price / call$0.01
Success—
StatusUnknown
How this service works
Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.
Output
The raw upstream response from Blockchair passed through after successful x402 micropayment: includes blockchain data such as transaction details, address balances, block info, mempool stats, or network statistics depending on the path queried.
Example use cases
Crypto transaction confirmation check
“Can you check whether the Ethereum transaction 0xabc123...def456 has been confirmed yet, and how many confirmations it has so far?”
Blockchain address balance lookup
“What's the current balance and transaction history for Bitcoin address 1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf Na on Blockchair?”
On-chain DeFi data enrichment
“Pull the latest stats for the Ethereum blockchain from Blockchair — I need total transactions today, average gas price, and mempool size for my DeFi dashboard.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/blockchair?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need on-demand access to Blockchair's blockchain explorer data (Bitcoin, Ethereum, and other chains) without managing your own Blockchair API key, and you want to pay per-use via x402 USDC micropayments rather than a subscription. Ideal for AI agents that query blockchain data infrequently or need pay-as-you-go web3 data access.
Side effects
- Insufficient USDC balance — payment of $0.01 fails, request blocked
- Invalid path — Blockchair returns 404 for unrecognized endpoint path
- Malformed query parameters — upstream returns 400 or validation error
- Rate limit exceeded on upstream Blockchair API — 429 response passed through
- Network timeout from upstream Blockchair service
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| body | string | Optional JSON body forwarded to POST requests. |
| path | string | Path below the selected upstream origin. |
| query | object | |
| method | string |
Output
Schema · Response
{
"description": "The upstream response body and content type are passed through after successful payment."
}Tags
x402
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