koios-mcp

Item: koios-mcp
Rating: 52
Author: M8ven

An MCP server that provides LLMs with access to 95 tools covering the Koios Cardano blockchain REST API, enabling queries for on-chain data like transactions, addresses, assets, and governance.

→ michaeljfazio/koios-mcp · listed on glama

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// key findings

🚨

Secret credentials may flow to a network call

1 flow detected: KOIOS_API_KEY. We can’t prove the destination matches the brand the credential belongs to.

⚠️

Known vulnerabilities in dependencies: 16 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

🔐

You'll be asked for 1 credential: KOIOS_API_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies16 high12 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.6.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.6.1GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highaxios@1.7.9GHSA-35jp-ww65-95wh

axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`

highaxios@1.7.9GHSA-3g43-6gmg-66jw

axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge

highaxios@1.7.9GHSA-43fc-jf86-j433

Axios is Vulnerable to Denial of Service via __proto__ Key in mergeConfig

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// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

🔐 secretKOIOS_API_KEY— Optional Bearer token for higher rate limits ([get one here](https://koios.rest/pricing/Pricing.html))

configKOIOS_NETWORK— preview Network to query: mainnet, preview, preprod, or guild

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 7 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/michaeljfazio-koios-mcp-1ennup)](https://m8ven.ai/mcp/michaeljfazio-koios-mcp-1ennup)

commit: 9a4a69d613d738649a6db4b45508637438b6fc53

code hash: 4e61c89f3baf3df3117960cc603c9b6b9d8396344b1eb9489d5fc9da9c9d6981

verified: 6/22/2026, 12:25:24 PM

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