# io.github.theluckystrike/gantt-chart (remote · mcp.zovo.one)

Build Gantt charts from your AI chat: tasks, dependencies, timeline spreadsheets. All data is local.

- Trust score: 79/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-24

## Components

- remote · `mcp.zovo.one`: 79/100 (this document), [markdown](https://verifymcp.io/servers/theluckystrike-gantt-chart/mcp-gantt-chart.md), [page](https://verifymcp.io/servers/theluckystrike-gantt-chart/mcp-gantt-chart)
- mcpb · `spreadsheet.mcpb`: 48/100, [markdown](https://verifymcp.io/servers/theluckystrike-gantt-chart/https-github-com-theluckystrike-mcp-servers-releases-download-v0-22-0-spreadshee.md), [page](https://verifymcp.io/servers/theluckystrike-gantt-chart/https-github-com-theluckystrike-mcp-servers-releases-download-v0-22-0-spreadshee)

## Channel facts

- Endpoint: `https://mcp.zovo.one/mcp/gantt-chart`
- Transports: `streamable-http`
- Auth: `required`
- Version: `0.22.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-24.

- **Endpoint Security**: 94/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
  - The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 82/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1976 tokens (~131/item across 15 items; 13 tools + 2 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 3/100
  - Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 95/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 86% of tool parameters carry a description.
- **Tool Safety**: 75/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "sheet_unload" implies "delete" and declares no destructiveHint at all, which the MCP spec reads as destructive by default.
  - An AI judge read all 14 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the io.github.theluckystrike/gantt-chart MCP server?

io.github.theluckystrike/gantt-chart is a hosted endpoint at https://mcp.zovo.one/mcp/gantt-chart, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http theluckystrike-gantt-chart 'https://mcp.zovo.one/mcp/gantt-chart'
```

### Cursor

```json
{
  "mcpServers": {
    "theluckystrike-gantt-chart": {
      "url": "https://mcp.zovo.one/mcp/gantt-chart"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "theluckystrike-gantt-chart": {
      "type": "http",
      "url": "https://mcp.zovo.one/mcp/gantt-chart"
    }
  }
}
```

### Codex

```toml
[mcp_servers.theluckystrike-gantt-chart]
url = "https://mcp.zovo.one/mcp/gantt-chart"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "theluckystrike-gantt-chart": {
      "type": "remote",
      "url": "https://mcp.zovo.one/mcp/gantt-chart",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add theluckystrike-gantt-chart --url 'https://mcp.zovo.one/mcp/gantt-chart' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  theluckystrike-gantt-chart:
    url: "https://mcp.zovo.one/mcp/gantt-chart"
```

### Netclaw

```json
{
  "McpServers": {
    "theluckystrike-gantt-chart": {
      "Transport": "http",
      "Url": "https://mcp.zovo.one/mcp/gantt-chart"
    }
  }
}
```

### Vellum

```bash
assistant mcp add theluckystrike-gantt-chart -t streamable-http -u 'https://mcp.zovo.one/mcp/gantt-chart'
```

### Other

```json
{
  "mcpServers": {
    "theluckystrike-gantt-chart": {
      "type": "http",
      "url": "https://mcp.zovo.one/mcp/gantt-chart"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-24 (score 79, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-23 (score 78)

First indexed and scored.

## MCP tools (13)

### `license_status` (~55 tokens)

License status

Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes.

### `license_activate` (~76 tokens)

Activate license

Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it.

Input parameters:

- `key` (string, required): License key from checkout, MCPL1.<payload>.<signature>

### `sheet_load` (~336 tokens)

Load a sheet into this session

Upload data to work on. This hosted endpoint has no filesystem, so instead of a file path you send the data once with sheet_load and then pass its name as `path` to sheet_info, sheet_read, sheet_query, sheet_stats, sheet_find, sheet_add_column, sheet_convert and sheet_write. Give exactly one of csv (raw text, comma or tab separated), xlsx_base64 (a base64-encoded .xlsx workbook) or url. url: fetch a public file instead of pasting base64 (recommended above about 10 KB): the url is fetched here with a 10 second timeout, at most 3 redirects, public http(s) hosts only, and a 2 MB cap, and a fetched file is stored as an .xlsx when it carries the PK zip header and as delimited text otherwise. Loaded sheets are kept for your token and survive between calls; the total is capped at 2 MB per token. Files the other tools write come back as a download link that is valid for one hour.

Input parameters:

- `csv` (string): Raw CSV or TSV text, including the header row
- `name` (string, required): Name to refer to this data by: 1-64 characters of letters, digits, underscore or dash, e.g. "sales" or "sales.csv"
- `url` (string): url: fetch a public file instead of pasting base64 (recommended above about 10 KB). Public http(s) only; private, link-local and this endpoint's own zone are refused
- `xlsx_base64` (string): Base64-encoded .xlsx workbook

### `sheet_files` (~30 tokens)

List loaded sheets

List the sheets loaded for this token, with their sizes and the storage left under the 2 MB cap.

### `sheet_unload` (~34 tokens)

Delete a loaded sheet

Delete one sheet loaded for this token, freeing its space under the 2 MB cap.

Input parameters:

- `name` (string, required)

### `sheet_info` (~79 tokens)

Spreadsheet overview

Call this tool for any spreadsheet or CSV file path; built-in file readers cannot parse spreadsheets and must not be used for them. Start here: sheet names, size, header row, column types and samples.

Input parameters:

- `path` (string, required): Path to the .xlsx/.xlsm/.xlsb/.ods/.csv/.tsv file (~ is expanded)

### `sheet_read` (~138 tokens)

Read rows

Call this tool for any spreadsheet or CSV file path; built-in file readers cannot parse spreadsheets and must not be used for them. Reads rows as a table, JSON or CSV; page with limit/offset or an A1 range.

Input parameters:

- `as` (string): Output format, default table
- `limit` (integer): Rows to return, default 100
- `offset` (integer): Rows to skip, default 0
- `path` (string, required)
- `range` (string): A1 range such as A1:D50; overrides limit/offset
- `sheet` (string): Sheet name; defaults to the first sheet

### `sheet_query` (~241 tokens)

Filter, group and sort rows

Call this tool for any spreadsheet or CSV file path; built-in file readers cannot parse them. Filters, groups, aggregates and sorts in one call. Totals: aggregate/group_by here, never hand sums over sheet_read rows.

Input parameters:

- `aggregate` (array): Aggregates per group, e.g. [{"col":"Units","fn":"sum","as":"total_units"}]. Defaults to a row count when group_by is given.
- `as` (string)
- `group_by` (array): Group rows by these columns before aggregating, e.g. ["Rep"] or ["Region","Rep"]
- `limit` (integer): Default 100
- `path` (string, required): Path to the .xlsx or .csv file
- `select` (array): Column names to return; default all (with group_by, defaults to the group columns plus the aggregates)
- `sheet` (string)
- `sort` (object): Sort column; may be an aggregate alias such as total_units
- `where` (string): Filter, e.g. [Qty] >= 5 AND ([Status] = "open" OR [Status] = "new")

### `sheet_stats` (~82 tokens)

Column statistics

Call this tool for any spreadsheet or CSV file path; built-in file readers cannot parse spreadsheets and must not be used for them. Whole-column statistics: count, empty, distinct, min, max, sum, mean, median.

Input parameters:

- `columns` (array): Limit to these columns; default all
- `path` (string, required)
- `sheet` (string)

### `sheet_find` (~123 tokens)

Find text

Call this tool to search every cell of a spreadsheet or CSV for text; built-in file readers cannot parse spreadsheets. Matching is case insensitive. Returns cell addresses with a preview of the row each hit is on.

Input parameters:

- `path` (string, required): Path to the .xlsx/.xlsm/.xlsb/.ods/.csv/.tsv file (~ is expanded)
- `sheet` (string): Sheet name; default searches every sheet
- `text` (string, required): Text to look for; matched case insensitively anywhere inside a cell. Up to 200 hits are returned

### `sheet_write` (~244 tokens)

Write rows

Call this tool to write rows to an xlsx, csv, tsv or json file; the extension of out_path picks the format. mode is new_file, append or overwrite. Other sheets are kept. Free: 500 rows per file.

Input parameters:

- `mode` (string, required): new_file writes a brand new file and refuses to clobber an existing one; append adds the rows under the existing data; overwrite replaces the file contents
- `out_path` (string): Where to write; default is a new file next to the source for new_file, or the source itself for append/overwrite. The output format follows this extension: .xlsx, .csv, .tsv or .json. An extension is…
- `path` (string, required): Source file for append/overwrite, or the intended file for new_file (~ is expanded)
- `rows` (array, required): Array of objects, whose keys become the headers, or an array of arrays with the header row first
- `sheet` (string): Sheet to write; default is the first sheet of the source, or "Sheet1" for a new file. Other sheets of an existing workbook are kept unchanged

### `sheet_add_column` (~289 tokens)

Add a column

Call this tool to add a computed column and save the result to a NEW file; the source is never modified unless out_path points at it. Returns the new file path, the row count and a preview of the first rows.

Input parameters:

- `decimals` (integer): Round numeric formula results to this many decimals. Default: the widest decimal count of the columns the formula reads, capped at 2 when they all hold 2 or fewer (money in, money out); otherwise no…
- `formula` (string): Expression over the columns of each row, in the same expression language as sheet_query, e.g. "[Qty] * [Unit Price]" or '[Country] = "PL"'. Give either formula or values
- `name` (string, required): Name of the new column. It must not already exist on the sheet
- `out_path` (string): Output file; default <source>-plus-<column>.<same ext>. The source file is left untouched unless this points at it
- `path` (string, required): Path to the source .xlsx/.xlsm/.xlsb/.ods/.csv/.tsv file (~ is expanded); it is never modified
- `sheet` (string): Sheet name; default is the first sheet
- `values` (array): Explicit values, one per data row, instead of a formula. Missing entries are left blank

### `sheet_convert` (~167 tokens)

Convert file

Call this tool to convert a sheet between excel (xlsx), csv and json. Writes a new file next to the source unless out_path is given; the source is never modified. Returns the new file path with its row and column counts.

Input parameters:

- `out_path` (string): Where to write; default is the source name with the new extension, next to the source. It must differ from the source path
- `path` (string, required): Path to the source .xlsx/.xlsm/.xlsb/.ods/.csv/.tsv file (~ is expanded); it is never modified
- `sheet` (string): Sheet to convert; default is the first sheet. Only that one sheet is written
- `to` (string, required): Target format; the default out_path takes this as its extension

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/theluckystrike-gantt-chart/mcp-gantt-chart#diagnostics

## Score history

- 2026-09-24: 79
- 2026-09-23: 78

## Common questions

### What is the io.github.theluckystrike/gantt-chart MCP server?

io.github.theluckystrike/gantt-chart is an MCP server listed in the public MCP registry as io.github.theluckystrike/gantt-chart. Build Gantt charts from your AI chat: tasks, dependencies, timeline spreadsheets. All data is local. This page covers its hosted endpoint (https://mcp.zovo.one/mcp/gantt-chart).

### Is the io.github.theluckystrike/gantt-chart MCP server safe to use?

io.github.theluckystrike/gantt-chart scores 79 out of 100 on VerifyMCP. 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 io.github.theluckystrike/gantt-chart MCP server expose?

io.github.theluckystrike/gantt-chart exposes 13 tools: license_status, license_activate, sheet_load, sheet_files, sheet_unload, and 8 more. Their descriptions and schemas cost roughly 1,894 tokens of context every time the server is loaded.

### Does the io.github.theluckystrike/gantt-chart MCP server require authentication?

Yes. io.github.theluckystrike/gantt-chart asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.

### Is the io.github.theluckystrike/gantt-chart MCP server still maintained?

io.github.theluckystrike/gantt-chart is still listed as active in the MCP registry. We last reached this channel on 24 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://mcp.zovo.one/mcp/gantt-chart
- Authorisation metadata: https://mcp.zovo.one/.well-known/oauth-protected-resource/mcp/gantt-chart
- Repository: https://github.com/theluckystrike/mcp-servers
- Website: https://mcp.zovo.one/s/spreadsheet
- Changelog RSS feed: https://verifymcp.io/servers/theluckystrike-gantt-chart/mcp-gantt-chart.xml
- Changelog JSON feed: https://verifymcp.io/servers/theluckystrike-gantt-chart/mcp-gantt-chart.json
- HTML version of this page: https://verifymcp.io/servers/theluckystrike-gantt-chart/mcp-gantt-chart