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QuickNode JSON-RPC Proxy — Flare Coston2 Testnet
x402
QuickNode JSON-RPC Proxy — Flare Coston2 Testnet is a paid API for AI agents from x402.quicknode.com, paid per call via x402, $10/call, status unknown (last checked 2026-09-14).
Proxies JSON-RPC calls to the Flare Coston2 testnet blockchain, enabling reads and writes via standard Ethereum-compatible methods.
Price / call$10
Success—
StatusUnknown
How this service works
JSON-RPC proxy — flare-coston2
Output
Returns a standard JSON-RPC 2.0 response object containing a result field with the method's return value (e.g. block number as hex, account balance in wei, transaction receipt object) or an error object if the call failed.
Example use cases
Example prompt
“Call eth_blockNumber on the Flare Coston2 testnet using QuickNode's JSON-RPC proxy to get the latest block number.”
Technical details
Endpoint
POSThttps://x402.quicknode.com/flare-coston2/When to prefer
Use this endpoint when you need to interact with the Flare Coston2 testnet specifically — for testing Flare smart contracts, FTSO (Flare Time Series Oracle) integrations, or EVM-compatible dApps before mainnet deployment. Prefer this over generic Ethereum RPC endpoints when your target chain is Flare Coston2.
Side effects
- Invalid JSON-RPC method name returns error code -32601 Method not found
- Malformed params array returns error code -32602 Invalid params
- Network congestion or node unavailability returns HTTP 503 or JSON-RPC internal error -32603
- Payment failure or insufficient USDC balance returns HTTP 402 Payment Required
- Rate limiting or quota exceeded returns HTTP 429
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| id | — | Request identifier |
| methodrequired | string | JSON-RPC method name (e.g., eth_blockNumber, eth_call) |
| params | array | Method parameters |
| jsonrpcrequired | string |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| id | — | |
| error | object | |
| result | — | RPC result (type varies by method) |
| jsonrpc | string |
Tags
x402
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