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Synapse API — Mantle RPC Endpoint
x402
Synapse API — Mantle 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 2026-09-15).
Proxies JSON-RPC calls to the Mantle blockchain network, enabling agents to query chain state, submit transactions, and interact with Mantle 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 a standard JSON-RPC response object with 'id', 'jsonrpc', and 'result' fields. The result content depends on the method called — e.g. a hex balance string for eth_getBalance, a block object for eth_getBlockByNumber, or a transaction receipt for eth_getTransactionReceipt.
Example use cases
Check wallet balance on Mantle
“Look up the current balance of the wallet address 0x1234abcd... on the Mantle network and tell me how much MNT it holds.”
Fetch latest Mantle block info
“Get me the latest block number and its timestamp from the Mantle blockchain right now.”
Call Mantle smart contract
“Call the balanceOf function on the ERC-20 contract at 0xDEAD... on Mantle for address 0xBEEF... and return the token balance.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/mantle/rpcWhen to prefer
Use this endpoint when you specifically need to interact with the Mantle L2 blockchain via standard Ethereum JSON-RPC calls. Prefer this over generic Web3 providers when you need pay-per-call pricing with no subscription commitment, or when operating across multiple chains via the same Synapse API surface.
Side effects
- Invalid RPC method name returns error code -32601 (method not found)
- Malformed params array returns -32602 (invalid params)
- Network congestion or Mantle node downtime may cause timeouts
- Payment failure (402) if USDC balance is insufficient
- Submitting transactions to wrong chain ID may result in rejected transactions
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | |
| params | array |
Tags
x402
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