Solana Priority Fee Estimator API MCP Server

by br0ski777 Your server? Claim it

not responding

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

Solana priority fees at 6 levels, cost in SOL/USD, congestion. 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

6 ms

Response time

average over 24h

Stars

last commit 2 Sep 2026

Solana Priority Fee Estimator 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 solana-fees --transport sse https://solana-fees.api.klymax402.com/mcp

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

https://solana-fees.api.klymax402.com/mcp

~/.codex/config.toml

[mcp_servers.solana-fees]
url = "https://solana-fees.api.klymax402.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "solana-fees": {
      "url": "https://solana-fees.api.klymax402.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "solana-fees": {
      "type": "sse",
      "url": "https://solana-fees.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.

solana

solana_get_priority_fees

Use this when you need priority fee estimates before sending a Solana transaction. Returns recommended compute unit prices at 6 levels based on recent network activity. 1. fees: object with 6 fee levels in microlamports per compute unit 2. min: minimum fee observed (cheapest, may fail in congestion) 3. low: 25th percentile fee (budget transactions) 4. medium: 50th percentile fee (recommended default) 5. high: 75th percentile fee (fast confirmation) 6. veryHigh: 90th percentile fee (priority during congestion) 7. max: maximum fee observed (guaranteed fast) Example output: {"fees":{"min":1,"low":100,"medium":1000,"high":5000,"veryHigh":50000,"max":500000},"slot":285432100,"program":"global","updatedAt":"2026-04-13T12:00:00Z"} Use this BEFORE every Solana transaction to set the right priority fee. Essential for Jupiter swaps, NFT mints, token transfers, and program interactions. Do NOT use for EVM gas -- use gas_get_current_price. Do NOT use for swap quotes -- use jupiter_get_swap_quote. Do NOT use for wallet balance -- use wallet_get_portfolio.

Endpoints

URL	Transport	State	Latency	Checked
https://solana-fees.api.klymax402.com/mcp	sse	answering	6 ms	11 min ago

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Solana Priority Fee Estimator API — questions

Answers built from our own checks of this server.

What can Solana Priority Fee Estimator API do?

It exposes 1 tools, read directly from the server on our last check. Among them: solana_get_priority_fees. 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 Solana Priority Fee Estimator 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 6 ms. The bar chart above shows every period we have measured.

The registry lists Solana Priority Fee Estimator 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 Solana Priority Fee Estimator 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 Solana Priority Fee Estimator API need an API key?

No. Solana Priority Fee Estimator 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 Solana Priority Fee Estimator API open source?

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