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Synapse API — Avalanche RPC Endpoint
x402
Synapse API — Avalanche 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 2026-09-13).
Provides a pay-per-call JSON-RPC gateway to the Avalanche blockchain network, enabling agents to query chain state, submit transactions, and interact with 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 containing the result field with the queried blockchain data (e.g. balance in wei, block object, transaction hash, contract return value) or an error object with code and message if the call fails.
Example use cases
Check AVAX wallet balance
“What's the current AVAX balance for wallet address 0xDead...Beef on the Avalanche mainnet?”
Fetch latest Avalanche block
“Get me the latest block number and its details from the Avalanche blockchain right now.”
Broadcast signed transaction
“I have a signed transaction hex ready — please submit it to the Avalanche network using eth_sendRawTransaction.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/avalanche/rpcWhen to prefer
Choose this endpoint when you need programmatic, pay-per-call access to the Avalanche blockchain without managing your own node or committing to a monthly subscription. Ideal for agents making occasional or bursty RPC calls across 57+ supported networks under the same Synapse API umbrella.
Side effects
- Invalid RPC method name returns JSON-RPC error with code -32601
- Malformed params array causes parse error with code -32700
- Payment not included or insufficient results in HTTP 402 response
- Network congestion or node unavailability causes timeout or 503
- Invalid transaction data on eth_sendRawTransaction returns execution revert error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | |
| params | array |
Tags
x402
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