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Synapse API — World Chain RPC Endpoint
x402
Synapse API — World Chain 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 2026-10-15).
Provides a JSON-RPC gateway to the World Chain blockchain network, enabling read and write interactions with on-chain data.
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 (balance, receipt, block info, contract return value, etc.) or an error object with code and message if the call fails.
Example use cases
Check on-chain wallet balance
“What is the current balance of wallet address 0x1234abcd... on the World Chain network? Use eth_getBalance with the latest block.”
Broadcast signed transaction
“Submit this signed raw transaction to World Chain so it gets included on-chain: 0xf86c...signedTxHex”
Read smart contract state
“Call the World Chain smart contract at 0xDeAdBeEf... using eth_call with the encoded data for the 'totalSupply()' function and tell me what it returns.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/worldchain/rpc?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need direct JSON-RPC access to the World Chain (Worldcoin L2) network specifically, paid per-call via x402/USDC micropayments, without needing to manage your own node infrastructure or API key subscriptions.
Side effects
- Invalid RPC method name returns JSON-RPC error -32601 (method not found)
- Malformed params array returns -32602 (invalid params)
- Payment not included or insufficient USDC returns HTTP 402
- Rate limiting or node unavailability returns HTTP 503
- Transaction broadcast failure due to low gas or nonce mismatch returns execution error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | |
| params | array |
Tags
x402
Reviews
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