Arc Treasury
NPM · ARC-TREASURY-MCP
What USDC and EURC really earn on Arc, by deposit size: Aave v4 and Morpho read directly. x402.
Available components
Last scanned (2 hours ago)
Scores higher than 48% of npm servers
Category Finance and Payments
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 → Why this is hard to score →
Supply Chain Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects zod 3.25.76, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 31 of 111 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency19
- Repository check failed: no source repository is declared. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 46 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability79
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 208 tokens (~69/item across 3 items; 3 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
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 Nov 26 0
- Stability: 0.97 → pass security
- 1 Nov 26 0
- Stability: pass → 0.97 functional
- 26 Oct 26 0
- Stability: 0.97 → pass security
- 25 Oct 26 0
- Stability: pass → 0.97 functional
- 24 Oct 26 −5
- CVE-2023-54404 affects this package: high ▼ security
- Known CVEs: pass → fail ▼ security
- 19 Oct 26 0
- Stability: 0.97 → pass security
- 18 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
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 5 Nov 2026 · Analysed npm/arc-treasury-mcp@1.0.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 1 finding
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-mrhx-c7xc-m3w5 | CVE-2023-54404 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 111 packages
| Packages resolved | 111 |
|---|---|
| Stale | 30 |
| No linked repository | 1 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
arc_best_yield ~104
Where a specific amount of USDC earns the most on Arc once the deposit's own effect on the pool is counted. A quoted rate is what a pool pays as it stands, and a high rate in a small pool collapses when real size lands in it; this ranks every market by the rate after your deposit. Call this before moving treasury. Paid per call.
| Name | Type | Req | Description |
|---|---|---|---|
| size | number | yes | How much USDC, in dollars, for example 100000. |
No output schema declared.
No examples provided.
arc_lending_rates ~62
What USDC and EURC earn and cost to borrow on Arc (chain 5042), every market on Aave v4 and Morpho, read from the contracts rather than an index. Includes utilisation and the size of each pool. Paid per call.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
gateway_activity_arc ~42
Circle Gateway activity on Arc measured at the contract: spends, deposits and batch settlements, where the money went, and how much of it is one address. Free.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the Arc Treasury MCP server?
Arc Treasury runs locally as an npm package, launched with npx -y arc-treasury-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · arc-treasury-mcp
claude mcp add xyz-honeycheck-arc-treasury-mcp -- npx -y arc-treasury-mcp
What is the Arc Treasury MCP server?
Arc Treasury is an MCP server listed in the public MCP registry as xyz.honeycheck/arc-treasury-mcp. What USDC and EURC really earn on Arc, by deposit size: Aave v4 and Morpho read directly. x402. This page covers its npm package (arc-treasury-mcp).
Is the Arc Treasury MCP server safe to use?
Arc Treasury scores 74 out of 100 on VerifyMCP. We recorded 1 known advisory against it as of 5 November 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Arc Treasury MCP server expose?
Arc Treasury exposes 3 tools: arc_lending_rates, arc_best_yield, gateway_activity_arc. Their descriptions and schemas cost roughly 208 tokens of context every time the server is loaded.
Is the Arc Treasury MCP server still maintained?
Arc Treasury is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Arc Treasury MCP server under?
Arc Treasury declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.