Crypto MCP Server (rex-automata/crypto-mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 58 out of 100, grade D. It declares 9 tools. No publisher has claimed this listing.

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D
Caution
58/100

Crypto MCP Server

The first blockchain & cryptocurrency MCP server that connects AI agents to Ethereum, Solana, Bitcoin, and cryptocurrency markets.

→ rex-automata/crypto-mcp-server· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

rex-automata

Source: Glama

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Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
🚨
Secret credentials may flow to a network call
6 flows detected: COINGECKO_API_KEY, ETHERSCAN_API_KEY. We can’t prove the destination matches the brand the credential belongs to.
⚠️
Known vulnerabilities in dependencies: 14 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
🔐
You'll be asked for 2 credentials: COINGECKO_API_KEY, ETHERSCAN_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes9 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

get_eth_balance

Get Ethereum wallet balance for a given address

get_eth_transactions

Get recent Ethereum transactions for an address

get_btc_balance

Get Bitcoin wallet balance for a given address

get_btc_transactions

Get recent Bitcoin transactions for an address

get_sol_balance

Get Solana wallet balance for a given address

get_sol_transactions

Get recent Solana transactions for an address

get_token_price

Get current price and market data for cryptocurrencies

search_tokens

Search for cryptocurrency tokens by name or symbol

get_gas_price

Get current Ethereum gas prices (slow, standard, fast)

// known CVEs in dependencies14 high5 medium11 low

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

high@modelcontextprotocol/sdk@1.0.4GHSA-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

highaxios@1.7.9GHSA-4hjh-wcwx-xvwj

Axios is vulnerable to DoS attack through lack of data size check

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretCOINGECKO_API_KEYAdd to .env: =your_key_here (optional)
🔐 secretETHERSCAN_API_KEYAdd to .env: =your_key_here
configSOLANA_RPC_URLAdd to .env: =your_rpc_url (optional)
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

9/9 tools missing one or more hints — get_eth_balance (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_eth_transactions (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_btc_balance (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +6 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

0 critical, 14 high severity in production deps — @modelcontextprotocol/sdk@1.0.4 (high), axios@1.7.9 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 4 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
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commit: 2835b6c1edd16b78bc7e7e8332d26c7fef37c6a3
code hash: 1c267b0a2f77f215594e6226094df6eeb1f88a5d11b107cb8812e648ecec540b
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