# StackTab MCP (npm · stacktab-mcp)

StackTab: SaaS service pricing and monthly stack cost estimates.

- Trust score: 65/100 (medium)
- Change this week: +42
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-17

## Components

- npm · `stacktab-mcp`: 65/100 (this document), [markdown](https://verifymcp.io/servers/tech-thecompound-stacktab/stacktab-mcp.md), [page](https://verifymcp.io/servers/tech-thecompound-stacktab/stacktab-mcp)

## Channel facts

- Registry: `npm`
- Package: `stacktab-mcp`
- Version: `0.1.0`
- Transport: `stdio`

## Trust breakdown

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. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-17.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 39 of 120 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 19/100
  - Repository check failed: the declared repository URL returned HTTP 404.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 11 days ago).
  - Security-disclosure policy not yet verified: we couldn't inspect the source repository.
- **Schema Quality & AI Usability**: 79/100
  - AI-judged instruction clarity (excellent).
  - Tool/resource definitions use about 272 tokens (~136/item across 2 items; 2 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 2 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.

**Unverified: 1 category.** A category scored 0 because we could not verify it: a data source with nothing on this package, evidence we could not reach, or a check we could not run. We only credit what we can confirm.

## Install

### How do I install the StackTab MCP server?

StackTab MCP runs locally as an npm package, launched with npx -y stacktab-mcp. 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 tech-thecompound-stacktab -- npx -y stacktab-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "tech-thecompound-stacktab": {
      "command": "npx",
      "args": [
        "-y",
        "stacktab-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "tech-thecompound-stacktab": {
      "command": "npx",
      "args": [
        "-y",
        "stacktab-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add tech-thecompound-stacktab -- npx -y stacktab-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "tech-thecompound-stacktab": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "stacktab-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add tech-thecompound-stacktab --command npx --arg -y --arg stacktab-mcp
```

### Hermes

```yaml
mcp_servers:
  tech-thecompound-stacktab:
    command: "npx"
    args: ["-y", "stacktab-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "tech-thecompound-stacktab": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "stacktab-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add tech-thecompound-stacktab -t stdio -c npx -a -y stacktab-mcp
```

### Other

```json
{
  "mcpServers": {
    "tech-thecompound-stacktab": {
      "command": "npx",
      "args": [
        "-y",
        "stacktab-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-10-16 (score 65, −6)

- [security regression] Source repository: pass → fail
- [functional regression] Security disclosure: fail → unverified

### 2026-10-14 (score 71, +33)

- [security improvement] Injection markers: unverified → pass
- [security] First check of Judged manipulation: pass
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] MCP protocol: unverified → pass
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: excellent
- [functional] First check of Destructive annotations: pass
- [functional] First check of Schema quality: pass
- [functional] First check of Tool coverage: 100

### 2026-10-11 (score 38, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-08 (score 23)

First indexed and scored.

## MCP tools (2)

### `lookup_service_pricing` (~142 tokens)

Look up current published pricing for a SaaS service

Read StackTab, which re-checks the published pricing of the services a product runs on (auth, database, hosting, payments) and records when each plan was last verified against the vendor's own page. Use when asked what something costs or what its free tier includes. Prices and free-tier limits change often enough that a remembered figure is a guess; each plan here carries the date it was last checked.

Input parameters:

- `category` (string): Filter by category: "auth", "database", "hosting" or "payments".
- `service` (string): A specific service slug or name, e.g. "clerk", "neon", "stripe".

### `estimate_stack_cost` (~130 tokens)

Estimate the monthly bill for a named stack at a given scale

Price a whole stack at a chosen user count using StackTab's verified plan data. Returns the plan each service lands on and an itemised bill — which lines are included in the base fee and which are metered overages. Use when someone asks "what will this cost at N users" instead of estimating from memory.

Input parameters:

- `stack` (string, required): Comma-separated service slugs, e.g. "supabase,clerk,polar,vercel". Look them up with lookup_service_pricing.
- `users` (number): Monthly active users to price at. Default 10,000.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/tech-thecompound-stacktab/stacktab-mcp#diagnostics

## Score history

- 2026-10-17: 65
- 2026-10-16: 65
- 2026-10-15: 71
- 2026-10-14: 71
- 2026-10-13: 38
- 2026-10-12: 38
- 2026-10-11: 38
- 2026-10-08: 23

## Common questions

### What is the StackTab MCP server?

StackTab MCP is listed in the public MCP registry as tech.thecompound/stacktab. StackTab: SaaS service pricing and monthly stack cost estimates. This page covers its npm package (stacktab-mcp).

### Is the StackTab MCP server safe to use?

StackTab MCP scores 65 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 17 October 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 StackTab MCP server expose?

StackTab MCP exposes 2 tools: lookup_service_pricing, estimate_stack_cost. Their descriptions and schemas cost roughly 272 tokens of context every time the server is loaded.

### Is the StackTab MCP server still maintained?

StackTab MCP is still listed as active in the MCP registry. We last reached this channel on 17 October 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 StackTab MCP server under?

StackTab MCP declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/stacktab-mcp
- Socket report: https://socket.dev/npm/package/stacktab-mcp
- Website: https://stacktab.thecompound.tech/
- Changelog RSS feed: https://verifymcp.io/servers/tech-thecompound-stacktab/stacktab-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/tech-thecompound-stacktab/stacktab-mcp.json
- HTML version of this page: https://verifymcp.io/servers/tech-thecompound-stacktab/stacktab-mcp