MCPFax On-Chain Toolkit is a remote MCP server that gives an AI agent 6 tools, among them address_info, demand_report, gas_now. It answers at https://onchain-toolkit.bowling-anthony.workers.dev/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 5 September 2026; the last check, on 18 October 2026, succeeded.
Live gas, ERC-20 details, tx status and balances across five EVM chains.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
address_info | Native balance, the next nonce to use, and whether the address holds contract code — the three things needed before sending from or to an address. Pass 'token' as well to read an ERC-20 balance for the same address in the same call. Values Inputs: address, chain, token |
demand_report | FREE, no payment. The aggregate of what agents have told us they are looking for, most-requested first, with the categories nothing available yet serves. Inputs: days |
gas_now | Live gas price on Ethereum, Base, Arbitrum, Optimism or Polygon — in wei and gwei, plus what a plain 21,000-gas transfer would cost in the native token, which is the number you actually budget with. Pass several chains comma-separated to co Inputs: chain |
request_data | FREE, no payment. Describe in your own words the data you are trying to buy — anything, not just on-chain data — and get back whether we operate a service that supplies it, with the MCP endpoint if so. Every request is catalogued so repeate Inputs: need |
token_info | Read an ERC-20's name, symbol, decimals and total supply straight from the contract on the chain you name, and confirm the address actually has code there. Use before quoting an amount or building a transfer: getting decimals wrong is the c Inputs: address, chain |
tx_status | Status of a transaction by hash: success, failed or still pending, with the block it landed in, sender and recipient, value moved, gas used, the fee actually paid, and how many logs it emitted. Use to confirm an action you took really settl Inputs: hash, chain |
Every block below points at https://onchain-toolkit.bowling-anthony.workers.dev/mcp. Pick your client and copy.
claude mcp add --transport http mcpfax-on-chain-toolkit https://onchain-toolkit.bowling-anthony.workers.dev/mcp
{
"mcpServers": {
"mcpfax-on-chain-toolkit": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"]
}
}
}{
"mcpServers": {
"mcpfax-on-chain-toolkit": {
"url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
}
}
}{
"servers": {
"mcpfax-on-chain-toolkit": {
"type": "http",
"url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
}
}
}{
"context_servers": {
"mcpfax-on-chain-toolkit": {
"url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
}
}
}{
"mcpServers": {
"mcpfax-on-chain-toolkit": {
"serverUrl": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
}
}
}{
"mcpServers": {
"mcpfax-on-chain-toolkit": {
"url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
}
}
}name: MCPFax On-Chain Toolkit
version: 0.0.1
schema: v1
mcpServers:
- name: MCPFax On-Chain Toolkit
type: streamable-http
url: https://onchain-toolkit.bowling-anthony.workers.dev/mcp{
"mcpServers": {
"mcpfax-on-chain-toolkit": {
"httpUrl": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
}
}
}{
"mcpServers": {
"mcpfax-on-chain-toolkit": {
"type": "http",
"url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
}
}
}{
"mcpServers": {
"mcpfax-on-chain-toolkit": {
"url": "https://onchain-toolkit.bowling-anthony.workers.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fonchain-toolkit.bowling-anthony.workers.dev%2Fmcp&type=streamable_http&id=mcpfax-on-chain-toolkit&name=MCPFax%20On-Chain%20Toolkit
It answered our last check on 18 October 2026 in 161 ms. Over 10 checks since 5 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
6, as returned by the server's own tools/list on 31 August 2026: address_info, demand_report, gas_now, request_data, token_info, tx_status.
It answered our last check on 18 October 2026 in 161 ms. Over 10 checks since 5 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://onchain-toolkit.bowling-anthony.workers.dev/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.mcpscores. Endpoint host: onchain-toolkit.bowling-anthony.workers.dev. ARD identifier: urn:air:com.mcpscores:mcp:onchain-toolkit.
First indexed 31 August 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.