Is Q402 safe and trustworthy?

tashan scores Q402 on public evidence — tashan score 68.0/100, it is currently active, no known advisories against the current release. Audit scope: OSV advisories, install-time scripts, build provenance and declared permission surface. We do not review source code or execute the capability.

How do I install Q402?

In Claude Code: run `claude mcp add q402 -- npx -y @quackai/q402-mcp`. In Cursor / Claude Desktop, add it to mcp.json / claude_desktop_config.json.

‹ The Index

Q402

npm

Q402 - gasless payments, yield, escrow, bridge & NAV triggers on 12 EVM chains. Sandbox-default.

Works with: Claude Code, Cursor, Claude Desktop, Codex CLI, Gemini CLI, Cline, Windsurf, VS Code (installable)
installable: each client documents how to load an MCP server of this type — that is the client's promise, not a claim verified against this capability

Category: Finance & Crypto — see all ranked ›

Work: Bookkeeping

Who it is for: Finance / accounting

Install (Claude Code):

claude mcp add q402 -- npx -y @quackai/q402-mcp

deep

“47 tools documented (q402_doctor, q402_quote, q402_balance…); 3 worked examples; setup and auth covered; states a limit — “Hardware wallets (Ledger / Trezor) are NOT…”; read with 1 linked doc(s)”

This grade is wrong ›

tashan score: 68.0
Instruction depth: 93.0 (deep — documents every tool, with worked examples, setup and a stated limitation)
Adoption: 607/wk
Upkeep: 84.0
Freshness: 92.0
Evidence coverage: 100% of the inputs this score can use
Health: active
Settled payments: $0.04 across 2 x402 calls at its own payment address (Base, all time)
License: Apache-2.0

Security audit

Every finding is shown in full — which advisory, the version that fixes it, and the exact command run at install time. Nothing in this audit is behind a licence.

No known advisoriesclearchecked against OSV for 0.11.27 — this package, not its dependency tree

No access inferred from declared dependenciesnothing it depends on reaches files, shell or network. This reads declarations only — built-in APIs are invisible to it, so absence of a declaration is not absence of access

Signed build provenancepublished from public CI with an attestation

What changed recently

2026-08-13 q402-mcp published 0.11.17, was 0.11.15 A new release is available.
2026-08-19 the tashan score for q402-mcp rose to 70.0, from 65.0 Upkeep, freshness or adoption moved enough to change how this measures.
2026-08-22 q402-mcp published 0.11.23, was 0.11.17 A new release is available.

You are reading this because you came looking. tashan Pro gives tashan doctor the history behind it, so a run over your own config says which of YOURS moved.

You searched for one. Check the rest of your stack:

npx tashan-cli doctor

Reads the config already on your machine and names what is dead, deprecated or running code at install time. No account, nothing uploaded.

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We recorded 4 changes to Q402 in the last 45 days. Pro tells you on the day — for the servers in your own config, not the ones you thought to look up.

Every score since we started measuring, for any capability
The named replacement when something you run is dying — not just that it is
tashan doctor over the config you already have, on your machine

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npm ↗ · source ↗ · pkg:@quackai/q402-mcp

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Measured 2026-09-12 · scorer s5 · how · something wrong here?