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Cortexcloud MCP Server

by jonahthan433 Your server? Claim it
answering

Cortexcloud is answering right now. Last checked 14 min ago. It exposes 10 tools. Last commit 30 Aug 2026.

Pay-per-call QUBO/Ising optimization for AI agents via x402 (USDC on Base). No API keys.

Uptime history 34 days of history · worst day 0%
34 days agonow
53.3%
Uptime 24h
49 of 92 checks
10
Tools
read from the server
858 ms
Response time
average over 24h
0
Stars
last commit 30 Aug 2026

What changed 9

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 10 August 2026. No other catalogue keeps this.

2 Sep 6 tools appeared cortex_ai_chat, cortex_automation_http_request, cortex_automation_transform and 3 more
10 Aug 3 tool descriptions were rewritten cortex_estimate_optimization, cortex_list_backends, cortex_optimize

What the code does

We read the source, 14 h ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Page executes code built at runtime landing.html:159, landing_full.html:236
    tb.innerHTML = d.txns.slice(0,6).map(t=>{

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

run in your terminal
claude mcp add cortexcloud --transport http https://api.cortexcloud.org/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "cortexcloud": {
      "url": "https://api.cortexcloud.org/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.cortexcloud]
url = "https://api.cortexcloud.org/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "cortexcloud": {
      "url": "https://api.cortexcloud.org/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "cortexcloud": {
      "url": "https://api.cortexcloud.org/mcp"
    }
  }
}

Available tools 10

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

cortex
cortex_ai_chat
Single-turn chat completion via /v1/ai/chat (x402-paid). Returns model reply + usage.
cortex_automation_http_request
Outbound SSRF-guarded HTTP via /v1/automation/http-request (x402-paid, automation).
cortex_automation_transform
Shape arbitrary JSON via pick/omit/rename/set rules (x402-paid, automation).
cortex_estimate_optimization
Analyze an optimization problem for free — returns a machine-readable decision block: recommended mode/backend, estimated runtime, USDC price, benchmark evidence. Always call this before paying for cortex_optimize.
cortex_get_job
Poll an optimization job by id. Free — returns status, solution, objective, error.
cortex_list_backends
List solver backends (classical/hybrid/quantum) with live availability and verified flag. Free — check before choosing a mode.
cortex_optimize
Solve a QUBO/Ising optimization problem (x402-paid, USDC on Base). Returns a job_id to poll with cortex_get_job. Prices per successful run: classical $0.05, hybrid $0.10, quantum $1.503 (exact price quoted by POST /v1/estimate before payment). Use mode=auto unless you specifically need quantum.
cortex_research_search
Web search via /v1/research/search (x402-paid). Returns ranked results with snippets.
cortex_token_price
Spot price (USD) for an ERC-20 token by contract address or CoinGecko id. Free.
cortex_wallet_balances
ERC-20 token balances (USD-valued) for an EOA address. Free.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

base_balance
removed 8 Aug 2026
base_token_balance
removed 8 Aug 2026
chat_completions
removed 8 Aug 2026
coins_search
removed 8 Aug 2026
crypto_history
removed 8 Aug 2026
defi_protocols
removed 8 Aug 2026
defi_yields
removed 8 Aug 2026
dex_pairs
removed 8 Aug 2026
dex_search
removed 8 Aug 2026
embeddings
removed 8 Aug 2026
eth_balance
removed 8 Aug 2026
ethereum_rpc
removed 8 Aug 2026
fx_list
removed 8 Aug 2026
fx_price
removed 8 Aug 2026
image_generation
removed 8 Aug 2026
models
removed 8 Aug 2026
news
removed 8 Aug 2026
prices
removed 8 Aug 2026
responses
removed 8 Aug 2026
search_contents
removed 8 Aug 2026
text_to_speech
removed 8 Aug 2026
web_search
removed 8 Aug 2026

Endpoints

URLTransportStateLatencyChecked
https://api.cortexcloud.org/mcp streamable-http answering 981 ms 14 min ago

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Cortexcloud — questions

Answers built from our own checks of this server.

What can Cortexcloud do?
It exposes 10 tools, read directly from the server on our last check. Among them: cortex_ai_chat, cortex_automation_http_request, cortex_automation_transform, cortex_estimate_optimization, cortex_get_job, cortex_list_backends and 4 more. 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 Cortexcloud working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 49 of 92 checks got a reply (53.3%), average response time 858 ms. The bar chart above shows every period we have measured.
Did Cortexcloud ever remove tools?
Yes. base_balance, base_token_balance, chat_completions, coins_search and 18 more are no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.
How do I connect Cortexcloud?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Cortexcloud need an API key?
No. Cortexcloud completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 10 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Cortexcloud?
It answers our handshake in 858 ms on average, which is faster than 12% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Cortexcloud open source?
Yes — it is published under the MIT licence, written in Python and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.