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Synapse API — SUI Blockchain RPC Proxy
x402
Synapse API — SUI Blockchain RPC Proxy 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 2026-09-15).
Proxies JSON-RPC method calls to the SUI blockchain network, enabling agents to query on-chain state, submit transactions, and interact with SUI smart contracts.
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 the standard JSON-RPC response body from the SUI node, including a result field with the requested on-chain data (balance, object details, transaction receipt, etc.) or an error object if the call fails.
Example use cases
Check SUI wallet balance on-chain
“Look up the on-chain SUI balance for wallet address 0x4f3e... using the sui_getBalance RPC method.”
Fetch SUI smart contract object state
“Query the SUI blockchain for the current state of object 0x9d2a... using sui_getObject so I can see its fields and owner.”
Broadcast signed SUI transaction
“Submit this signed SUI transaction to the network using sui_executeTransactionBlock so it gets confirmed on-chain.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/sui/rpcWhen to prefer
Use this endpoint when you need to interact with the SUI blockchain specifically and want pay-per-call pricing via x402 USDC without managing your own SUI node or RPC subscription. Prefer it over self-hosted nodes when minimizing infrastructure overhead and when operating in an autonomous agent context that already handles x402 payments.
Side effects
- Invalid RPC method name returns JSON-RPC error code -32601
- Malformed params array causes parse error -32700
- Non-existent SUI object ID returns null result
- Payment failure (402) if x402 USDC payment is not included
- Rate limiting or node unavailability returns 5xx error
- Submitting an already-finalized transaction returns duplicate transaction error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | |
| params | array |
Tags
x402
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