EVM Wallet Signer
NPM · MCP-WALLET-SIGNER · SCANNED AUG 3
Route EVM transactions to browser wallets (MetaMask, etc.) for signing via EIP-6963
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →
Supply Chain Security87
- No malware found by supply-chain analysis.Pass
- Only part of the dependency tree could be resolved (120 of 124), so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- Only part of the dependency tree could be resolved (120 of 124), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to nikicat/mcp-wallet-signer). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 74 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability77
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 586 tokens (~117/item across 5 items; 5 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · mcp-wallet-signer
claude mcp add nikicat-mcp-wallet-signer -- npx -y mcp-wallet-signer
codex mcp add nikicat-mcp-wallet-signer -- npx -y mcp-wallet-signer
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"nikicat-mcp-wallet-signer": {
"type": "local",
"command": [
"npx",
"-y",
"mcp-wallet-signer"
],
"enabled": true
}
}
} openclaw mcp add nikicat-mcp-wallet-signer --command npx --arg -y --arg mcp-wallet-signer
mcp_servers:
nikicat-mcp-wallet-signer:
command: "npx"
args: ["-y", "mcp-wallet-signer"] {
"mcpServers": {
"nikicat-mcp-wallet-signer": {
"command": "npx",
"args": [
"-y",
"mcp-wallet-signer"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 2 Aug 26 +58
- Known CVEs: unverified → partial ▲ security
- Install scripts: unverified → pass ▲ security
- Provenance: unverified → pass ▲ security
- Malware scan: unverified → pass ▲ security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- The attested source repository moved: nikicat/mcp-wallet-signer security
- Schema quality: unverified → excellent ▲ functional
- License: unverified → pass ▲ functional
- Dependency health: unverified → partial ▲ functional
- Stability: unverified → 0.20 ▲ functional
- Maintenance: unverified → pass ▲ functional
- MCP protocol: unverified → pass ▲ functional
- Licence: MIT functional
- 1 Aug 26 −7
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 −18
- Malware scan: pass → unverified ▼ security
- 27 Jul 26 46
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 3 Aug 2026 · Analysed npm/[email protected]
Provenance verified
Ecosystem: npm · Outcome: verified
Reason: verified
- Source repo:
- nikicat/mcp-wallet-signer
- Certificate issuer:
- https://token.actions.githubusercontent.com
- Certificate SAN:
- https://github.com/nikicat/mcp-wallet-signer/.github/workflows/publish.yml@refs/tags/v0.1.3
- Rekor log index:
- 938687908
- Predicate type:
- https://slsa.dev/provenance/v1
- Subject digest:
- sha512:3f205842f391ac0120e8c76c72469c2898d8996bd29555efeb29f16ea479a7ef69597ae33589108d28fab88fb1855c3bf97e3d36cc3c7c78cd77c60d6
- Discovery method:
- attestation_endpoint
Dependencies 120 packages
120 packages in the resolved dependency tree · 119 deprecated · 32 stale.
The dependency tree was only partially resolved, so these counts may be incomplete.
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
connect_wallet ~85
Connect to a browser wallet and get the wallet address. IMPORTANT: This tool opens a browser window where the user must approve the connection. Tell the user to switch to their browser window to approve. This tool blocks until the user acts or the request times out (5 min).
| Name | Type | Req | Description |
|---|---|---|---|
| chainId | number | — | Chain ID to connect to (default: 1 for Ethereum mainnet) |
No output schema declared.
No examples provided.
get_balance ~58
Get the ETH balance of an address. Does not require browser interaction - reads directly from the blockchain.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Address to get balance for (0x...) |
| chainId | number | — | Chain ID (default: 1) |
No output schema declared.
No examples provided.
send_transaction ~186
Send a transaction (ETH transfer or contract call) via the connected browser wallet. IMPORTANT: This tool opens a browser window where the user must review and approve the transaction. Tell the user to switch to their browser window to approve. This tool blocks until the user acts or the request times out (5 min).
| Name | Type | Req | Description |
|---|---|---|---|
| chainId | number | — | Chain ID (default: 1) |
| data | string | — | Contract call data, hex encoded (optional) |
| gasLimit | string | — | Gas limit (optional, will be estimated if not provided) |
| maxFeePerGas | string | — | Max fee per gas in wei (optional) |
| maxPriorityFeePerGas | string | — | Max priority fee per gas in wei (optional) |
| to | string | yes | Recipient address (0x...) |
| value | string | — | Amount in wei to send (optional for contract calls) |
No output schema declared.
No examples provided.
sign_message ~98
Sign an arbitrary message using personal_sign. IMPORTANT: This tool opens a browser window where the user must approve the signature. Tell the user to switch to their browser window to approve. This tool blocks until the user acts or the request times out (5 min).
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | — | Address to sign with (uses connected address if not specified) |
| chainId | number | — | Chain ID |
| message | string | yes | Message to sign |
No output schema declared.
No examples provided.
sign_typed_data ~159
Sign EIP-712 typed data. IMPORTANT: This tool opens a browser window where the user must review and approve the signature. Tell the user to switch to their browser window to approve. This tool blocks until the user acts or the request times out (5 min).
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | — | Address to sign with |
| chainId | number | — | Chain ID |
| domain | object | yes | EIP-712 domain (name, version, chainId, verifyingContract, salt) |
| message | object | yes | Message data to sign |
| primaryType | string | yes | Primary type name |
| types | object | yes | Type definitions (e.g., { Person: [{ name: 'name', type: 'string' }] }) |
No output schema declared.
No examples provided.