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Synapse API — Superseed RPC
x402
Synapse API — Superseed RPC 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 2026-10-16).
Proxies JSON-RPC calls to the Superseed blockchain network, enabling on-chain reads and writes via a pay-per-call HTTP endpoint.
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 with an 'id', 'jsonrpc' version field, and a 'result' containing the requested on-chain data (balance, block info, receipt, contract return value, etc.) or an 'error' object if the call failed.
Example use cases
Check on-chain account balance
“What's the ETH balance of wallet 0xAbC123... on the Superseed network right now? Use the Superseed RPC to fetch it.”
Read smart contract state
“Call the balanceOf method on the Superseed smart contract at 0xDEF456... for my wallet 0xAbC123... and tell me the result.”
Broadcast signed transaction
“I have a signed raw transaction hex I need to submit to the Superseed blockchain — can you broadcast it using eth_sendRawTransaction and give me the transaction hash?”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/superseed/rpc?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need direct, low-latency JSON-RPC access to the Superseed blockchain specifically — particularly for on-chain reads (balances, block data, contract state) or broadcasting signed transactions. Prefer this over generic multi-chain RPC aggregators if Superseed is your target network and you want pay-per-call pricing without a subscription.
Side effects
- Invalid RPC method name returns JSON-RPC error -32601 (method not found)
- Malformed params array causes -32602 (invalid params) error
- Superseed node unreachable returns HTTP 502 or timeout
- Payment not attached or insufficient causes HTTP 402 Payment Required
- Submitting transactions with invalid signatures returns execution reverted error
- Rate limiting or node congestion may cause delayed responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | |
| params | array |
Tags
x402
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