# Peru Sunat Ruc (npm · @pipeworx/mcp-peru-sunat-ruc)

peru-sunat-ruc -- Peru's SUNAT taxpayer register (Padron reducido del RUC). Fleet #2929.

- Trust score: 70/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `gateway.pipeworx.io`: 75/100, [markdown](https://verifymcp.io/servers/pipeworx-io-peru-sunat-ruc/peru-sunat-ruc-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-peru-sunat-ruc/peru-sunat-ruc-mcp)
- npm · `@pipeworx/mcp-peru-sunat-ruc`: 70/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-peru-sunat-ruc/pipeworx-mcp-peru-sunat-ruc.md), [page](https://verifymcp.io/servers/pipeworx-io-peru-sunat-ruc/pipeworx-mcp-peru-sunat-ruc)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-peru-sunat-ruc`
- 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 2026-11-05.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 45/100
  - 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 4 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 63/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 495 tokens (~247/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 13/100
  - Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **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 3 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 Peru Sunat Ruc MCP server?

Peru Sunat Ruc runs locally as an npm package, launched with npx -y @pipeworx/mcp-peru-sunat-ruc. 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 pipeworx-io-peru-sunat-ruc -- npx -y @pipeworx/mcp-peru-sunat-ruc
```

### Cursor

```json
{
  "mcpServers": {
    "pipeworx-io-peru-sunat-ruc": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-peru-sunat-ruc"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pipeworx-io-peru-sunat-ruc": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-peru-sunat-ruc"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add pipeworx-io-peru-sunat-ruc -- npx -y @pipeworx/mcp-peru-sunat-ruc
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pipeworx-io-peru-sunat-ruc": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@pipeworx/mcp-peru-sunat-ruc"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pipeworx-io-peru-sunat-ruc --command npx --arg -y --arg @pipeworx/mcp-peru-sunat-ruc
```

### Hermes

```yaml
mcp_servers:
  pipeworx-io-peru-sunat-ruc:
    command: "npx"
    args: ["-y", "@pipeworx/mcp-peru-sunat-ruc"]
```

### Netclaw

```json
{
  "McpServers": {
    "pipeworx-io-peru-sunat-ruc": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@pipeworx/mcp-peru-sunat-ruc"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add pipeworx-io-peru-sunat-ruc -t stdio -c npx -a -y @pipeworx/mcp-peru-sunat-ruc
```

### Other

```json
{
  "mcpServers": {
    "pipeworx-io-peru-sunat-ruc": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-peru-sunat-ruc"
      ]
    }
  }
}
```

## 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.

### 2026-11-04 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 0 to 3. That category is still filling its 30-day observation window: 0 days of observed history at the previous scan, 1 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 68)

First indexed and scored.

## MCP tools (2)

### `pe_ruc` (~186 tokens)

Look up one Peruvian taxpayer by its 11-digit RUC in SUNAT's published taxpayer register: registered name (razon social), taxpayer status (active, deregistered, suspended ...), domicile condition (habido / no habido ...) and, for companies, the registered address with its ubigeo and department. Companies and organisations only (RUC prefix 20, plus government offices 00): natural persons (RUCs beginning 10, 15, 17) are excluded and answer found:false with reason natural_person_not_served, no name, status or address. Use for "is RUC 20100070970 real and active", KYC and counterparty checks, or resolving a RUC found on an invoice.

Input parameters:

- `ruc` (string, required): The 11-digit RUC, digits only, e.g. "20100070970".

### `pe_ruc_search` (~248 tokens)

Search SUNAT's published taxpayer register by company name (razon social) -- legal entities only (RUC prefix 20 and government offices); natural persons are excluded entirely and are never returned. Accent-insensitive substring match: every word of 3+ letters must appear in the name. Active registrations are listed before deregistered ones. Optionally restrict to a place with a ubigeo prefix (2 digits = department, e.g. "15" Lima; 4 = province; 6 = district). Returns RUC, name, status and address so you can pick the right one.

Input parameters:

- `active_only` (boolean): If true, return only registrations whose status is ACTIVO (default false: active first, then the rest).
- `limit` (number): Maximum results (1-50, default 10).
- `name` (string, required): Company name or part of it, e.g. "BANCO DE CREDITO" or "alicorp".
- `ubigeo` (string): Optional ubigeo prefix: 2, 4 or 6 digits (e.g. "15" Lima department, "150122" Miraflores).

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/pipeworx-io-peru-sunat-ruc/pipeworx-mcp-peru-sunat-ruc#diagnostics

## Score history

- 2026-11-05: 70
- 2026-11-04: 70
- 2026-11-03: 69
- 2026-11-02: 69
- 2026-11-01: 68

## Common questions

### What is the Peru Sunat Ruc MCP server?

Peru Sunat Ruc is an MCP server listed in the public MCP registry as io.github.pipeworx-io/peru-sunat-ruc. peru-sunat-ruc -- Peru's SUNAT taxpayer register (Padron reducido del RUC). Fleet #2929. This page covers its npm package (@pipeworx/mcp-peru-sunat-ruc).

### Is the Peru Sunat Ruc MCP server safe to use?

Peru Sunat Ruc scores 70 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 Peru Sunat Ruc MCP server expose?

Peru Sunat Ruc exposes 2 tools: pe_ruc, pe_ruc_search. Their descriptions and schemas cost roughly 434 tokens of context every time the server is loaded.

### Is the Peru Sunat Ruc MCP server still maintained?

Peru Sunat Ruc 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 Peru Sunat Ruc MCP server under?

Peru Sunat Ruc 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 Peru Sunat Ruc MCP server?

VerifyMCP ran 16 checks on Peru Sunat Ruc, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. 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/@pipeworx/mcp-peru-sunat-ruc
- Socket report: https://socket.dev/npm/package/@pipeworx/mcp-peru-sunat-ruc
- Repository: https://github.com/pipeworx-io/mcp-peru-sunat-ruc
- Website: https://pipeworx.io/packs/peru-sunat-ruc
- Changelog RSS feed: https://verifymcp.io/servers/pipeworx-io-peru-sunat-ruc/pipeworx-mcp-peru-sunat-ruc.xml
- Changelog JSON feed: https://verifymcp.io/servers/pipeworx-io-peru-sunat-ruc/pipeworx-mcp-peru-sunat-ruc/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/pipeworx-io-peru-sunat-ruc/pipeworx-mcp-peru-sunat-ruc.json
- HTML version of this page: https://verifymcp.io/servers/pipeworx-io-peru-sunat-ruc/pipeworx-mcp-peru-sunat-ruc