Clervo Connect
NPM · @CLERVO/MCP
Free-first Clervo tools and bounded opt-in commerce through one local wallet.
Available components
Last scanned (2 hours ago)
Scores higher than 76% of npm servers
Category AI and Machine Learning
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 @modelcontextprotocol/sdk 1.30.0, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 30 of 116 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency100
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to clervo/clervo). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 85 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability59
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 394 tokens (~43/item across 9 items; 9 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management83
- Stability observed for 25 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage78
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 33% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 9 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.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 4 Nov 26 −3
- Stability: pass → 0.80 functional
- 29 Oct 26 0
- Stability: 0.97 → pass security
- 28 Oct 26 0
- GHSA-f897-62hf-6gxq affects this package: high ▼ security
- Stability: pass → 0.97 functional
- 24 Oct 26 0
- CVE-2023-54404 affects this package: high ▼ security
- 22 Oct 26 0
- Stability: 0.97 → pass security
- 21 Oct 26 0
- CVE-2026-111771 affects this package: high ▼ security
- CVE-2026-111768 affects this package: high ▼ security
- CVE-2026-111769 affects this package: high ▼ security
- CVE-2026-111767 affects this package: high ▼ security
- Stability: pass → 0.97 functional
- 17 Oct 26 +3
- Stability: 0.80 → pass security
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/@clervo/mcp@0.5.2
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | clervo/clervo |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/clervo/clervo/.github/workflows/publish-packages.yml@refs/heads/main |
| Rekor log index | 2421063968 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:63e1827890953aa4a0f610d2a439bdb9feac8b6a5ab35fad5214e23b2942eac3c4ec4f26fdfe047cfda03f40e5e214d374146c9ce123826c2c126319d |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 7 findings
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-22jm-h49p-29qw | CVE-2026-111767 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L | yes |
| GHSA-46jr-4wx8-v453 | CVE-2026-111768 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-6prh-2h8m-c8cw | CVE-2026-111769 | medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N | yes |
| GHSA-6qxp-vccf-f47h | CVE-2026-104850 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | yes |
| GHSA-f897-62hf-6gxq | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes | |
| GHSA-rvq5-wwqv-78pq | CVE-2026-111771 | medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N | yes |
| 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 116 packages
| Packages resolved | 116 |
|---|---|
| Stale | 30 |
| 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 →
ai_execute Execute a normalized Clervo AI request ~101
Executes a free model or returns the exact paid challenge without signing or paying. The tool never creates a wallet or authorizes payment.
| Name | Type | Req | Description |
|---|---|---|---|
| idempotencyKey | string | – | – |
| input | object | yes | Normalized AI input object; its kind must match the selected model capability. |
| maximumOutputTokens | integer | – | – |
| maximumReasoningTokens | integer | – | – |
| model | string | yes | Stable canonical Clervo model ID or a published alias. |
No output schema declared.
No examples provided.
clervo_execute Execute a currently served Clervo full operation ~91
Generic execution for the full profile. Runtime registry truth is checked on every call. Automatic payment is disabled; payable calls return a quote.
| Name | Type | Req | Description |
|---|---|---|---|
| body | object | yes | – |
| idempotencyKey | string | – | – |
| paid | boolean | – | For a product with a free path, explicitly request its paid path. Signing still requires local --auto-pay opt-in. |
| productId | string | yes | – |
No output schema declared.
No examples provided.
connect_status Clervo wallet and shared Connect status ~16
Clervo wallet and shared Connect status
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
doctor Diagnose the local Clervo Connect installation ~15
Diagnose the local Clervo Connect installation
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
local_usage Clervo durable local usage ~14
Clervo durable local usage
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
models_list List the live Clervo AI catalog ~32
Returns stable provider-neutral model IDs, capabilities, health, availability, free/paid state, pricing, and commerce metadata.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
reconcile Reconcile unresolved Clervo operations without a new payment ~18
Reconcile unresolved Clervo operations without a new payment
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_web Clervo web evidence preview ~92
Runs the live bounded free Search route or obtains its exact paid challenge without signing.
| Name | Type | Req | Description |
|---|---|---|---|
| idempotencyKey | string | – | – |
| language | string | – | – |
| maxResults | integer | – | – |
| mode | string | – | Preview calls the live free route. Challenge obtains the exact paid 402 but never signs or pays. |
| query | string | yes | The evidence query. |
| region | string | – | – |
No output schema declared.
No examples provided.
spend_limits Clervo buyer-side spend limits ~15
Clervo buyer-side spend limits
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
How do I install the Clervo Connect MCP server?
Clervo Connect runs locally as an npm package, launched with npx -y @clervo/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 · @clervo/mcp
claude mcp add clervo-connect -- npx -y @clervo/mcp
What is the Clervo Connect MCP server?
Clervo Connect is an MCP server listed in the public MCP registry as io.github.clervo/connect. Free-first Clervo tools and bounded opt-in commerce through one local wallet. This page covers its npm package (@clervo/mcp).
Is the Clervo Connect MCP server safe to use?
Clervo Connect scores 83 out of 100 on VerifyMCP. We recorded 7 known advisories against it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 Clervo Connect MCP server expose?
Clervo Connect exposes 9 tools: search_web, models_list, ai_execute, clervo_execute, connect_status, and 4 more. Their descriptions and schemas cost roughly 394 tokens of context every time the server is loaded.
Is the Clervo Connect MCP server still maintained?
Clervo Connect 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 Clervo Connect MCP server under?
Clervo Connect declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.