Nodeflare

Read on-chain data across 23 EVM chains — Ethereum, Base, Arbitrum, Optimism, BNB, plus young chains like Robinhood, Plasma and Ink — from an independent…

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

  • List Chains: List the EVM chains NodeFlare serves, with chain IDs and endpoint URLs.
  • Get Block Number: Get the latest block number on a chain (decimal and hex).
  • Get Balance: Get the native-token balance of an address — raw wei plus a human-readable amount in the chain's currency.

What data it sees

Do you need an account

No: the server works without sign-in

Read on-chain data across 23 EVM chains — Ethereum, Base, Arbitrum, Optimism, BNB, plus young chains like Robinhood, Plasma and Ink — from an independent provider running its own nodes. Tools for balances, tokens, transactions, event logs and gas, with flexible chain input (slug, name, or chain ID). Free anonymous tier, no API key. Guided recipes included as MCP prompts.

How to connect

How to connect Nodeflare to Claude

The server address to paste into Claude settings:

https://nodeflare--info-f7wb.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Nodeflare to ChatGPT

The server address to paste into ChatGPT settings:

https://nodeflare--info-f7wb.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Nodeflare to Cursor

The server address to paste into Cursor settings:

https://nodeflare--info-f7wb.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (10)

Raw names from tools/list. Only developers need these.

list_chainsList the EVM chains NodeFlare serves, with chain IDs and endpoint URLs.
get_block_numberGet the latest block number on a chain (decimal and hex).
get_balanceGet the native-token balance of an address — raw wei plus a human-readable amount in the chain's currency.
get_gas_priceGet the current gas price on a chain (wei + gwei).
get_transactionGet a transaction by its hash (from, to, value, input, block, gas).
get_transaction_receiptGet the receipt of a transaction by hash (status, logs, gas used).
get_blockGet a block by number or tag ('latest', 'finalized', or a hex number). Set fullTransactions to include full tx objects.
eth_callExecute a read-only contract call (eth_call) and return the raw result.
get_logsFetch contract event logs (eth_getLogs). Heavy method — needs a free API key; blocked on the anonymous remote endpoint.
rpc_callMake any JSON-RPC call on any supported chain. Heavy methods (eth_getLogs, trace_*, debug_*) are blocked on the anonymous remote endpoint — use a free API key for those.