# com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder (npm · @mambalabsdev/mcp-vc-accelerator-portfolio-list-builder)

Portfolio company lists from Y Combinator, a16z, Sequoia, Accel, and any VC portfolio page

- Trust score: 52/100 (low)
- Change this week: −15
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- npm · `@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder`: 52/100 (this document), [markdown](https://verifymcp.io/servers/com-mambabuilt-mcp-vc-accelerator-portfolio-list-builder/mambalabsdev-mcp-vc-accelerator-portfolio-list-builder.md), [page](https://verifymcp.io/servers/com-mambabuilt-mcp-vc-accelerator-portfolio-list-builder/mambalabsdev-mcp-vc-accelerator-portfolio-list-builder)

## Channel facts

- Registry: `npm`
- Package: `@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder`
- Version: `1.0.2`
- 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 2026-11-05.

- **Supply Chain Security**: 48/100
  - Malware scan not yet available for this package.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 30 of 92 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 48/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 0 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 57/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 652 tokens (~652/item across 1 items; 1 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 0/100
  - Stability check failed: the tool surface changed between 1.0.0 and 1.0.2: 0 tool removals, 1 breaking changes, 0 additions.
- **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 1 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 1 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 com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder server?

com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder runs locally as an npm package, launched with npx -y @mambalabsdev/mcp-vc-accelerator-portfolio-list-builder. 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 com-mambabuilt-mcp-vc-accelerator-portfolio-list -- npx -y @mambalabsdev/mcp-vc-accelerator-portfolio-list-builder
```

### Cursor

```json
{
  "mcpServers": {
    "com-mambabuilt-mcp-vc-accelerator-portfolio-list": {
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-mambabuilt-mcp-vc-accelerator-portfolio-list": {
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add com-mambabuilt-mcp-vc-accelerator-portfolio-list -- npx -y @mambalabsdev/mcp-vc-accelerator-portfolio-list-builder
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-mambabuilt-mcp-vc-accelerator-portfolio-list": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-mambabuilt-mcp-vc-accelerator-portfolio-list --command npx --arg -y --arg @mambalabsdev/mcp-vc-accelerator-portfolio-list-builder
```

### Hermes

```yaml
mcp_servers:
  com-mambabuilt-mcp-vc-accelerator-portfolio-list:
    command: "npx"
    args: ["-y", "@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder"]
```

### Netclaw

```json
{
  "McpServers": {
    "com-mambabuilt-mcp-vc-accelerator-portfolio-list": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-mambabuilt-mcp-vc-accelerator-portfolio-list -t stdio -c npx -a -y @mambalabsdev/mcp-vc-accelerator-portfolio-list-builder
```

### Other

```json
{
  "mcpServers": {
    "com-mambabuilt-mcp-vc-accelerator-portfolio-list": {
      "command": "npx",
      "args": [
        "-y",
        "@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder"
      ]
    }
  }
}
```

## 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.

### 2026-11-05 (score 52, −15)

- [security regression] Malware scan: pass → unverified
- [functional] Schema quality: excellent → good
- [functional] Package version: 1.0.1 → 1.0.2

### 2026-10-29 (score 67, −1)

- [security regression] Stability: unverified → fail
- [security regression] Tool safety: pass → unverified
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Schema quality: 562 → 640
- [functional regression] Capabilities: pass → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified
- [functional] Schema quality: good → excellent
- [functional] Package version: 1.0.0 → 1.0.1

### 2026-10-27 (score 68, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-10-26 (score 53)

First indexed and scored.

## MCP tools (1)

### `build_portfolio_list` (~652 tokens)

Build a portfolio company list

Build a list of the companies a venture capital firm or accelerator backs. Give investor or accelerator names (Y Combinator, a16z, Sequoia, Accel, Index Ventures, Founders Fund, Greylock, Lightspeed, Khosla, First Round, Techstars, Antler) or any portfolio page URL. Returns one flat row per portfolio company (name, domain, website, description, and stage, batch, or status where the source gives it) plus one free summary row per source saying how it was read or why it returned nothing. Y Combinator is filterable by batch, industry, region, status, and search words. Pages are read from the investor's own site and robots.txt is obeyed. A run that does not succeed is returned as an error with its run ID. Read-only; requires an APIFY_TOKEN and is billed per company row with a domain.

Input parameters:

- `investors` (array): Investors or accelerators by name (Y Combinator, a16z, Sequoia, Accel, Index Ventures, Founders Fund, Greylock, Lightspeed, Khosla, First Round, Techstars, Antler) or portfolio page URLs. Up to 25. D…
- `max_charge_usd` (number|string): Optional. Number or text, in USD. The run stops before a charge that would pass this amount.
- `max_companies_per_source` (number|string): Number or text. Company rows per source, up to 10000. Each company row with a domain is billed. Default 500.
- `max_detail_pages` (number|string): Number or text. Company pages opened per source, up to 1000. Default 200.
- `only_new`: Skip companies an earlier run returned for the same source (free). Default false.
- `open_company_pages`: Open per company pages when a portfolio page links only to them. Default true.
- `proxy_mode` (string): auto reads a site that refuses a direct request through the Apify proxy; direct never uses a proxy. A reliability setting; it does not change the price. Default auto.
- `state_key` (string): Optional name for the only new companies memory.
- `yc_batches` (array): Y Combinator only. Batches as S24, W25, or Summer 2024. Empty: every batch.
- `yc_company_pages`: Y Combinator only. true opens each company's YC page (one page per company, up to max_detail_pages) to read founder names, founder LinkedIn links, and the open role count. Needs open_company_pages tr…
- `yc_industries` (array): Y Combinator only. Industries as the directory writes them, for example B2B, Fintech.
- `yc_query` (string): Y Combinator only. Words to search the directory for.
- `yc_regions` (array): Y Combinator only. Regions as the directory writes them, for example Europe.
- `yc_status` (array): Y Combinator only. Any of active, acquired, public, inactive.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/com-mambabuilt-mcp-vc-accelerator-portfolio-list-builder/mambalabsdev-mcp-vc-accelerator-portfolio-list-builder#diagnostics

## Score history

- 2026-11-05: 52
- 2026-11-04: 67
- 2026-11-03: 67
- 2026-11-02: 67
- 2026-11-01: 67
- 2026-10-31: 67
- 2026-10-30: 67
- 2026-10-29: 67
- 2026-10-28: 68
- 2026-10-27: 68
- 2026-10-26: 53

## Common questions

### What is the com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder server?

com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder is listed in the public MCP registry as com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder. Portfolio company lists from Y Combinator, a16z, Sequoia, Accel, and any VC portfolio page. This page covers its npm package (@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder).

### Is the com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder server safe to use?

com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder scores 52 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. 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 com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder server expose?

com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder exposes 1 tool: build_portfolio_list. Their descriptions and schemas cost roughly 652 tokens of context every time the server is loaded.

### Is the com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder server still maintained?

com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder 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.mambabuilt/mcp-vc-accelerator-portfolio-list-builder server under?

com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder 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.mambabuilt/mcp-vc-accelerator-portfolio-list-builder server?

VerifyMCP ran 15 checks on com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder, covering Known CVEs, Install scripts, Dependency health, Source repository and 11 more. One item could not be completed, a gap on our side rather than a finding about com.mambabuilt/mcp-vc-accelerator-portfolio-list-builder: Malware scan. 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.

## Links

- npm package: https://www.npmjs.com/package/@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder
- Socket report: https://socket.dev/npm/package/@mambalabsdev/mcp-vc-accelerator-portfolio-list-builder
- Repository: https://github.com/mambalabsdev/mcp-vc-accelerator-portfolio-list-builder
- Changelog RSS feed: https://verifymcp.io/servers/com-mambabuilt-mcp-vc-accelerator-portfolio-list-builder/mambalabsdev-mcp-vc-accelerator-portfolio-list-builder.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-mambabuilt-mcp-vc-accelerator-portfolio-list-builder/mambalabsdev-mcp-vc-accelerator-portfolio-list-builder/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/com-mambabuilt-mcp-vc-accelerator-portfolio-list-builder/mambalabsdev-mcp-vc-accelerator-portfolio-list-builder.json
- HTML version of this page: https://verifymcp.io/servers/com-mambabuilt-mcp-vc-accelerator-portfolio-list-builder/mambalabsdev-mcp-vc-accelerator-portfolio-list-builder