com.greencalculus/api
NPM · GREENCALCULUS-MCP · 2 COMPONENTS
Sourced carbon emission factors + audit-traced calculations an AI can cite.
Available components
Last scanned (15 hours ago)
Scores higher than 22% of npm servers
Category Health and Science
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 Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- No production dependencies, so there is no dependency health to assess. View diagnostics → Pass
Provenance & Transparency71
- Repository check failed: no source repository is declared. See how to fix → View diagnostics → Fail
- Cryptographically verified build provenance (signed, bound to greencalculus/greencalculus-mcp). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 50 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability0
- Schema quality not yet verified: this package installed, but its server did not start, so we have no schema to assess.Unverified
Stability & Change Management0
- Stability not yet verified: this package installed, but its server did not start, so we have no schema to compare.Unverified
Tool Coverage0
- Tool coverage not yet verified: this package installed, but its server did not start, so we have no tool definitions to assess.Unverified
Tool Safety0
- Tool safety not yet verified: this package installed, but its server did not start, so we have no tool text to scan.Unverified
Capabilities0
- Protocol version not yet verified: this package installed, but its server did not start, so we never saw its MCP handshake.Unverified
Unverified: 5 categories
Categories scored 0 because our sandbox has not given us the schema these checks need to read. That is a gap on our side rather than a finding about the package, and we only credit what we can confirm, so the score stands at 0 until the capture succeeds. We are working through the fleet, so this normally clears without any action from you. How we score packages →
Checks we ran (9)
- Malware scan
- Known CVEs
- Install scripts
- Dependency health
- Source repository
- Provenance
- License
- Maintenance
- Security disclosure
Checks we could not complete (5)
These are gaps on our side, not findings about this package. We only credit what we can confirm, so a category made up entirely of them scores 0.
- Schema quality in Schema Quality & AI Usability (scores 0 for this)Schema quality not yet verified: this package installed, but its server did not start, so we have no schema to assess.
- Stability in Stability & Change Management (scores 0 for this)Stability not yet verified: this package installed, but its server did not start, so we have no schema to compare.
- Tool coverage in Tool Coverage (scores 0 for this)Tool coverage not yet verified: this package installed, but its server did not start, so we have no tool definitions to assess.
- Tool safety in Tool Safety (scores 0 for this)Tool safety not yet verified: this package installed, but its server did not start, so we have no tool text to scan.
- Capabilities in Capabilities (scores 0 for this)Protocol version not yet verified: this package installed, but its server did not start, so we never saw its MCP handshake.
Does not apply to this package (2)
- Endpoint SecurityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
- Transport & ReachabilityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
The score does not measure everything. What the score does not measure →
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.
- 12 Oct 26 +15
- Malware scan: unverified → pass ▲ security
- Security disclosure: unverified → fail ▼ functional
- 11 Oct 26 −15
- Malware scan: pass → unverified ▼ security
- Security disclosure: fail → unverified ▼ functional
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 16 Sept 26 0
- Provenance: fail → pass ▲ security
- The attested source repository moved: greencalculus/greencalculus-mcp security
- Package version: 1.0.3 → 1.0.4 functional
- 10 Sept 26 0
- Package version: 1.0.2 → 1.0.3 functional
- 9 Sept 26 0
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 5 Nov 2026 · Analysed npm/greencalculus-mcp@1.0.4
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 | greencalculus/greencalculus-mcp |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/greencalculus/greencalculus-mcp/.github/workflows/release.yml@refs/heads/main |
| Rekor log index | 2837866509 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:b21470f0ef68a3bdd9e490cf117f1788c20de0c1ed8911cd6e21f823f6fd5552ced17113ca03178ef21e26c40bedf288ba3507f2d6f50030f48399f46 |
Background: How many MCP packages publish verified provenance →
Dependencies 0 packages
| Packages resolved | 0 |
|---|---|
| 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 →
Tools for package channels are captured by running the package in an isolated sandbox. The most recent sandbox run could not capture a tool list from this package.
How do I install the com.greencalculus/api MCP server?
com.greencalculus/api runs locally as an npm package, launched with npx -y greencalculus-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 · greencalculus-mcp
claude mcp add com-greencalculus-api -- npx -y greencalculus-mcp
What is the com.greencalculus/api MCP server?
com.greencalculus/api is an MCP server listed in the public MCP registry as com.greencalculus/api. Sourced carbon emission factors + audit-traced calculations an AI can cite. This page covers its npm package (greencalculus-mcp).
Is the com.greencalculus/api MCP server safe to use?
com.greencalculus/api scores 44 out of 100 on VerifyMCP. We found no known CVEs affecting 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.
Is the com.greencalculus/api MCP server still maintained?
com.greencalculus/api 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 com.greencalculus/api MCP server under?
com.greencalculus/api declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.
What did VerifyMCP test on the com.greencalculus/api MCP server?
VerifyMCP ran 9 checks on com.greencalculus/api, covering Malware scan, Known CVEs, Install scripts, Dependency health and 5 more. 5 items could not be completed, a gap on our side rather than a finding about com.greencalculus/api: Schema quality, Stability, Tool coverage, Tool safety and 1 more. 5 categories score 0 for that reason, because we only credit what we can confirm. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.