Gas Oracle API MCP Server

by br0ski777 Your server? Claim it

not responding

Gas Oracle API is listed as active in the registry but did not answer our last check. It exposes 1 tools. Last commit 2 Sep 2026.

Real-time gas prices, gwei tiers, USD cost estimates for Base and Ethereum. x402.

Uptime history 91 days of history · worst day 0%

91 days agonow

0.0%

Uptime 24h

0 of 91 checks

Tools

read from the server

7 ms

Response time

average over 24h

Stars

last commit 2 Sep 2026

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 8 August 2026. No other catalogue keeps this.

8 Aug a tool description was rewritten gas_get_current_price

Gas Oracle API does not always answer

Over the last week it answered 0.0% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add gas-oracle --transport sse https://gas-oracle.api.klymax402.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://gas-oracle.api.klymax402.com/mcp

~/.codex/config.toml

[mcp_servers.gas-oracle]
url = "https://gas-oracle.api.klymax402.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "gas-oracle": {
      "url": "https://gas-oracle.api.klymax402.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "gas-oracle": {
      "type": "sse",
      "url": "https://gas-oracle.api.klymax402.com/mcp"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

gas

gas_get_current_price

Use this when you need current gas prices before submitting a transaction. Returns gas tiers and USD cost estimates in JSON. POST variant of gas_get_current_price -- same params passed as JSON body instead of query string. 1. slow: gas price in gwei for slow confirmation (~5 min) 2. standard: gas price in gwei for standard confirmation (~2 min) 3. fast: gas price in gwei for fast confirmation (~30s) 4. instant: gas price in gwei for instant confirmation 5. transferCostUsd: estimated USD cost for a simple ETH transfer 6. swapCostUsd: estimated USD cost for a token swap 7. congestion: network congestion level (low/medium/high) Example output: {"slow":0.008,"standard":0.012,"fast":0.018,"instant":0.025,"transferCostUsd":0.02,"swapCostUsd":0.05,"congestion":"low","chain":"base"} Use this BEFORE submitting any on-chain transaction to pick the right gas tier. Essential for timing transactions and avoiding high-gas periods. Do NOT use for swap quotes -- use dex_get_swap_quote instead. Do NOT use for wallet balance -- use wallet_get_portfolio instead. Do NOT use for multi-chain gas comparison -- use crypto_estimate_gas instead.

Endpoints

URL	Transport	State	Latency	Checked
https://gas-oracle.api.klymax402.com/mcp	sse	answering	7 ms	11 min ago

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Gas Oracle API — questions

Answers built from our own checks of this server.

What can Gas Oracle API do?

It exposes 1 tools, read directly from the server on our last check. Among them: gas_get_current_price. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Gas Oracle API working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 0 of 91 checks got a reply (0.0%), average response time 7 ms. The bar chart above shows every period we have measured.

The registry lists Gas Oracle API as active — why does it not respond?

The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.

How do I connect Gas Oracle API?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Gas Oracle API need an API key?

No. Gas Oracle API completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

Is Gas Oracle API open source?

The code is open source: it is published under the MIT licence, written in TypeScript, 0 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at gas-oracle.api.klymax402.com, which runs on its operator's own terms.