zerion-mcp (rockyale/zerion-mcp) is an MCP server listed on the M8ven Trust Index. It scores 58 out of 100, grade D. It declares 40 tools. No publisher has claimed this listing.

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D
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58/100

zerion-mcp

MCP server that provides live crypto portfolio data, token info, gas prices, swap offers, and Bitcoin balance via Zerion and Blockstream APIs.

→ rockyale/zerion-mcp· 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

rockyale

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
⚠️
Known vulnerabilities in dependencies: 6 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 1 credential: ZERION_API_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes20 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_wallet_portfolio

Get portfolio overview for a wallet: total value, breakdown by chain and position type.

get_wallet_fungible_positions

Get fungible token (ERC-20 etc.) positions held by a wallet, including DeFi protocol positions.

get_wallet_transactions

Get transaction history for a wallet with rich decoded action data.

get_wallet_pnl

Get Profit and Loss (PnL) for a wallet: unrealized PnL, realized PnL, net invested. Uses FIFO accounting.

get_wallet_nft_positions

Get NFT positions held by a wallet.

get_wallet_nft_portfolio

Get NFT portfolio overview (total value, collection count) for a wallet.

get_wallet_balance_chart

Get historical balance chart data for a wallet.

get_wallet_set_portfolio

Get portfolio overview for a set of wallets (multi-wallet aggregation).

get_wallet_set_fungible_positions

Get aggregated fungible positions across a wallet set.

get_wallet_set_pnl

Get PnL for a wallet set.

get_wallet_set_transactions

Get transaction history for a wallet set.

search_fungibles

Search for fungible assets (tokens) by name/symbol or filter by implementation.

get_fungible_by_id

Get detailed info on a specific fungible asset by Zerion ID.

get_fungible_chart

Get price chart data for a fungible asset.

get_chains

Get list of all supported blockchain networks.

get_gas_prices

Get real-time gas prices across all supported chains.

get_swap_offers

Get swap/bridge quotes with ready-to-sign tx data from aggregated providers (1inch, ParaSwap, 0x). Includes 0.8% Zerion fee. Use 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE for native assets (ETH, MATIC etc.).

get_bitcoin_address_info

Get Bitcoin address balance and stats: confirmed balance, unconfirmed balance, total transactions.

get_bitcoin_transactions

Get recent transaction history for a Bitcoin address (up to last 25 txs).

get_bitcoin_xpub_balance

Get total Bitcoin balance from an xpub/zpub key (Ledger Native SegWit). Derives all child addresses, queries each via Blockstream, and sums the balance. Scans until it hits 20 consecutive unused addresses (BIP44 gap limit).

// known CVEs in dependencies6 high8 low

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

high@modelcontextprotocol/sdk@1.0.0GHSA-w48q-cv73-mx4w

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

highundici@8.1.0GHSA-38rv-x7px-6hhq

undici WebSocket client vulnerable to denial of service via cumulative fragment bypass

highundici@8.1.0GHSA-4cwx-7wf7-3272

undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives

highundici@8.1.0GHSA-hm92-r4w5-c3mj

undici vulnerable to cross-origin request routing via SOCKS5 proxy pool reuse

highundici@8.1.0GHSA-vmh5-mc38-953g

undici vulnerable to TLS certificate validation bypass via dropped requestTls in SOCKS5 ProxyAgent

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.
🔐 secretZERION_API_KEY"": "your_api_key_here"
// 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

40/40 tools missing one or more hints — get_wallet_portfolio (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_wallet_fungible_positions (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_wallet_transactions (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +37 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, 6 high severity in production deps — @modelcontextprotocol/sdk@1.0.0 (high), undici@8.1.0 (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: f2fbe1e8a883eb7c4244dd8aea8eb84ad7a665de
code hash: b8bf01422cee1747dfeee39c62f6643af547a0ab45cd8061b4a8d03e09abaaa7
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