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Cortexcloud MCP Server

by jonahthan433 Your server? Claim it
answering

Cortexcloud is answering right now. Last checked 7 min ago. It exposes 17 tools. Last commit 23 Oct 2026.

Pay-per-call on-chain data for AI agents: token, wallet, risk, whale, NFT, tx. No API keys.

Uptime history 80 days of history · worst day 0%
80 days agonow
100.0%
Uptime 24h
91 of 91 checks
17
Tools
read from the server
884 ms
Response time
average over 24h
0
Stars
last commit 23 Oct 2026

What changed 36

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

18 Oct 16 tools appeared cortex_aggregate_balances, cortex_aggregate_nfts, cortex_aggregate_prices and 13 more
18 Oct 9 tools disappeared cortex_ai_chat, cortex_automation_http_request, cortex_automation_transform and 6 more
18 Oct a tool description was rewritten cortex_token_price
18 Oct a tool changed the parameters it asks for cortex_token_price
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, 3 d ago · tools taken from the live server · rules 995398eba69f

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 7 min ago.

run in your terminal
claude mcp add cortexcloud --transport http https://api.cortexcloud.org/mcp
Settings → Connectors → Add custom connector, then paste this address
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
{
  "servers": {
    "cortexcloud": {
      "type": "http",
      "url": "https://api.cortexcloud.org/mcp"
    }
  }
}

Available tools 17

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

cortex
cortex_aggregate_balances
Batch ERC-20 balances for many addresses in one call (Alchemy). Priced per constituent lookup: $0.004 USDC per address (1-20 addresses).
cortex_aggregate_nfts
Batch NFT ownership across addresses in one call. Priced per constituent lookup: $0.004 USDC per address (1-20 addresses).
cortex_aggregate_prices
Batch spot USD prices for many coins (CoinGecko). Priced per constituent lookup: $0.004 USDC per id (1-50 ids).
cortex_aggregate_tx_history
Batch normalized transfers across addresses in one call. Priced per constituent lookup: $0.004 USDC per address (1-20 addresses).
cortex_block
Block by number or 'latest' on a chain (Alchemy). x402 paid: $0.004 USDC on Base per call.
cortex_capabilities
Free: service capabilities, supported chains/providers, payment terms and discovery index.
cortex_cross_chain_compare
Compare one contract address across up to 5 chains (price, activity, deployment) in one call. x402 paid: $0.040 USDC on Base per call.
cortex_gas_oracle
Current base fee + priority fee (gas prices) for a chain (Alchemy). x402 paid: $0.004 USDC on Base per call.
cortex_nft_ownership
NFTs owned by a wallet on a chain (Alchemy NFT API). x402 paid: $0.004 USDC on Base per call.
cortex_prices
Free: complete tool/price table for this MCP gateway (served locally, no upstream call).
cortex_token_balances
ERC-20 token balances for a wallet on a chain (Alchemy Token API). x402 paid: $0.004 USDC on Base per call.
cortex_token_intel
Flagship evidence-backed token profile in one call: deployment, metadata, spot price, 24h change, optional age/liquidity/market-cap, recent activity — every fact carries source + checked_at. x402 paid: $0.030 USDC on Base per call.
cortex_token_price
Spot USD price for a token/coin. Provide 'id' (CoinGecko id, e.g. 'ethereum', 'usd-coin') or 'contract'+'chain'. x402 paid: $0.004 USDC on Base per call.
cortex_token_risk
Token risk verdict (age, liquidity, contract checks, suspicious-transfer scan) with per-claim evidence. x402 paid: $0.020 USDC on Base per call.
cortex_tx_history
Normalized transactions for an address on a chain (Alchemy Transfers API). x402 paid: $0.004 USDC on Base per call.
cortex_wallet_intel
Wallet profile: balances, holdings, recent activity, counterparty relationships (Alchemy). x402 paid: $0.006 USDC on Base per call.
cortex_whale_alerts
Large-transfer / accumulation alerts with tx hashes + timestamps (Alchemy). Omit 'address' for a chain-wide scan. x402 paid: $0.030 USDC on Base per call.

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
cortex_ai_chat
removed 18 Oct 2026
cortex_automation_http_request
removed 18 Oct 2026
cortex_automation_transform
removed 18 Oct 2026
cortex_estimate_optimization
removed 18 Oct 2026
cortex_get_job
removed 18 Oct 2026
cortex_list_backends
removed 18 Oct 2026
cortex_optimize
removed 18 Oct 2026
cortex_research_search
removed 18 Oct 2026
cortex_wallet_balances
removed 18 Oct 2026

Endpoints

URLTransportStateLatencyChecked
https://api.cortexcloud.org/mcp streamable-http answering 758 ms 7 min ago

Alternatives to Cortexcloud

same job, measured the same way
A
Agent Data API
by lx1112

Token risk, wallet profiles, OFAC screening, whale trades on 6 chains. x402, USDC per call.

68 tools answering
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Pay-per-call crypto data for AI agents. USDC.e on Tempo via MPP. No API key.

19 installs/wk local only
Boo X402 MCP
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Pay-per-call crypto data for AI agents. USDC on Base via x402. No API key.

18 installs/wk local only
V
Ventis
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Crypto data for AI agents: prices, Solana wallets, token risk, swap quotes. Pay per call via x402.

2 tools answering
K
K402
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Agent-payable APIs on Kaspa: LLMs, chain data, covenants, zk proofs — pay per call, no API key

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47620 Solana Data
by 47620-xyz

Pay-per-call Solana data for AI agents over x402: token, account, tx, trending. No signup, no key.

52 tools answering
47620 Base + Polygon Data API
by 47620

Pay-per-call Base and Polygon onchain data over x402 for AI agents.

14 installs/wk 18 tools answering
Supership Scan
by andysalvo

Buy any x402 API or data on Base, Solana, Polygon. No wallet on the seller's chain. For AI agents.

43 installs/wk local only

Cortexcloud — questions

Answers built from our own checks of this server.

What can Cortexcloud do?
It exposes 17 tools, read directly from the server on our last check. Among them: cortex_aggregate_balances, cortex_aggregate_nfts, cortex_aggregate_prices, cortex_aggregate_tx_history, cortex_block, cortex_capabilities and 11 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 91 of 91 checks got a reply (100.0%), average response time 884 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 27 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 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 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 17 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 884 ms on average, which is faster than 9% 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?
The code is open source: it is published under the MIT licence, written in Python, 0 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at api.cortexcloud.org, which runs on its operator's own terms.