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Synapse API — Unichain RPC Endpoint
x402
Synapse API — Unichain RPC Endpoint is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).
Provides a pay-per-call JSON-RPC gateway to the Unichain blockchain network, enabling standard Ethereum-compatible RPC method calls over HTTP.
Price / call$0.01
Success—
StatusUnknown
How this service works
High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.
Output
Returns a standard JSON-RPC response object containing the result field with blockchain data (e.g. balance in wei, block object, transaction receipt, contract return value) or an error object with code and message if the call fails.
Example use cases
Check wallet balance on Unichain
“Can you check the ETH balance of wallet 0xAbC...123 on Unichain right now using the latest block?”
Broadcast signed transaction to Unichain
“I have a signed raw transaction hex — please submit it to the Unichain network using eth_sendRawTransaction.”
Read smart contract state on Unichain
“Call the balanceOf function on the Unichain ERC-20 contract at 0xDef...456 for my address 0xAbC...123 so I know my token balance.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/unichain/rpc?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you specifically need RPC access to the Unichain network (not Ethereum mainnet or other L2s) and want pay-per-call pricing via x402 without committing to a subscription RPC provider. Ideal for low-volume or sporadic Unichain interactions from an AI agent that already handles x402 micropayments.
Side effects
- Invalid RPC method name returns JSON-RPC error -32601 (Method not found)
- Malformed params array causes -32602 (Invalid params)
- Network congestion or node unavailability may cause timeouts
- Payment failure (x402) blocks request if USDC balance is insufficient
- Calling a non-existent contract address returns empty result or revert
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | |
| params | array |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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