blockscout-mcp-server (imelon2/blockscout-mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 56 out of 100, grade D. It declares 15 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
D
Caution
56/100

blockscout-mcp-server

A read-only MCP server that queries multichain EVM on-chain data through Blockscout REST API, providing tools for address info, transactions, logs, and more.

→ imelon2/blockscout-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.

How we verified

⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

imelon2

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

⚡ Connect GitHub for Live Monitored

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: 2 critical, 3 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
// tools this server exposes15 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_address_info

Get balance, type (account vs contract), and metadata for an address on a chain. Use this first when asked about a wallet or contract.

get_tokens_by_address

List ERC-20/721/1155 token balances held by an address. Paginated.

get_token_transfers_by_address

List token transfer events involving an address (in and out). Paginated.

get_transactions_by_address

List native transactions involving an address (sent and received). Paginated.

get_block_info

Get details for a block by number or hash: timestamp, miner, gas used, and tx count.

get_block_number

Get the latest (most recent) block height for a chain.

get_chains_list

List all chains this server can query (bundled registry + any custom chains from CHAINS_FILE). Optionally filter by name or chain ID.

get_contract_abi

Get the ABI of a verified smart contract. Returns the ABI array only.

inspect_contract_code

Get verified source code and compiler metadata for a smart contract.

direct_api_call
get_logs

List event logs emitted by a contract/address. Large `data` fields are truncated. Paginated.

nft_tokens_by_address

List NFT (ERC-721/1155) tokens owned by an address. Paginated.

lookup_token_by_symbol

Search for tokens by symbol or name on a chain. Returns candidate tokens with their contract addresses.

get_transaction_info

Get full details for a transaction by hash: status, value, gas, and decoded input.

get_token_transfers_by_transaction

List token transfers that occurred within a single transaction.

// known CVEs in dependencies2 critical3 high

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

criticalvitest@3.0.0GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

criticalvitest@3.0.0GHSA-9crc-q9x8-hgqq

Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening

high@modelcontextprotocol/sdk@1.22.0GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.22.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.22.0GHSA-w48q-cv73-mx4w

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

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.
configRUN_INTEGRATION
// 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

15/15 tools missing one or more hints — get_address_info (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_tokens_by_address (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_token_transfers_by_address (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +12 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.

License file

No license file

Add a LICENSE file (MIT, Apache-2.0, etc.).

Tool test coverage

7/15 tools referenced in tests (47%)

Write tests that reference each tool by name so every tool has at least one test.

Production dependencies are patched

0 critical, 3 high severity in production deps — @modelcontextprotocol/sdk@1.22.0 (high), @modelcontextprotocol/sdk@1.22.0 (high)

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

Dev dependencies

2 critical/high in dev-only deps (does not ship to users)

Upgrade dev dependencies when convenient.

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 6 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 Verified](https://m8ven.ai/badge/mcp/imelon2/blockscout-mcp-server?variant=verified)](https://m8ven.ai/mcp/imelon2/blockscout-mcp-server)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: be073e54ce4e1dad2b7a4c32f8792038c1af5a29
code hash: fd23b2e2cd25a88a1972e617ad25a3f036fd6399cf2de6bf5888fba0cfda346b
view raw JSON →
Check MCPs from inside your assistant
Tool Check · MCP

Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.

https://m8ven.ai/api/mcp/tool-check
check_toolsearch_toolscompare_toolsrecommend_alternativescheck_publisherreport_concern
How to add it →Free · no account needed · works in any MCP client