# MadTaco (npm · @madtaco/mcp)

Verification and trust checks for AI agents: validate, screen, propose, accounts, usage.

- Trust score: 68/100 (medium)
- Change this week: +22
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@madtaco/mcp`: 68/100 (this document), [markdown](https://verifymcp.io/servers/dev-madtaco-mcp/madtaco-mcp.md), [page](https://verifymcp.io/servers/dev-madtaco-mcp/madtaco-mcp)

## Channel facts

- Registry: `npm`
- Package: `@madtaco/mcp`
- Version: `1.1.0`
- 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 2026-08-03.

- **Supply Chain Security**: 87/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.
  - No install/post-install scripts declared.
  - Only part of the dependency tree could be resolved (95 of 99), so this covers what we could see, not the whole tree.
- **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 22 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 71/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 861 tokens (~71/item across 12 items; 12 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 97/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 90% of tool parameters carry a description.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add dev-madtaco-mcp -- npx -y @madtaco/mcp
```

### Codex

```bash
codex mcp add dev-madtaco-mcp -- npx -y @madtaco/mcp
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add dev-madtaco-mcp --command npx --arg -y --arg @madtaco/mcp
```

### Hermes

```yaml
mcp_servers:
  dev-madtaco-mcp:
    command: "npx"
    args: ["-y", "@madtaco/mcp"]
```

### Other

```json
{
  "mcpServers": {
    "dev-madtaco-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@madtaco/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.

### 2026-08-03 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-02 (score 67, +46)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Malware scan: unverified → pass
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Stability: unverified → 0.23
- [functional improvement] Schema quality: unverified → good
- [functional] Licence: MIT

### 2026-07-31 (score 21, −25)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 46, +22)

- [functional improvement] Tool coverage: unverified → 100

### 2026-07-28 (score 24, −22)

- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-07-27 (score 46)

First indexed and scored.

## MCP tools (12)

### `validate_tax_id` (~82 tokens)

Validate a tax ID format and checksum. Supports CL RUT, MX RFC, and more. Free — no API key required.

Input parameters:

- `country` (string, required): ISO 3166-1 alpha-2 country code, e.g. "CL".
- `id` (string, required): Tax ID to validate, e.g. "11.111.111-1".

### `validate_iban` (~52 tokens)

Validate an IBAN checksum and parse country and bank code. Free — no API key required.

Input parameters:

- `iban` (string, required): IBAN to validate, e.g. "DE89370400440532013000".

### `validate_email` (~61 tokens)

Validate an email address. mode "syntax" is free; mode "full" costs 0.005 credits (tier 2).

Input parameters:

- `address` (string, required): Email address to validate.
- `mode` (string): syntax (free) or full (paid).

### `validate_phone` (~64 tokens)

Validate a phone number. mode "format" is free; mode "full" costs 0.005 credits (tier 2).

Input parameters:

- `mode` (string): format (free) or full (paid).
- `number` (string, required): Phone number, E.164 preferred.

### `screen_sanctions` (~93 tokens)

Screen a name against OFAC SDN, EU, UK, and UN sanctions lists. Costs 0.10 credits (tier 2).

Input parameters:

- `country` (string): Optional ISO country hint.
- `idempotency_key` (string): Optional Idempotency-Key header.
- `match_threshold` (number): Similarity threshold, default 0.85.
- `name` (string, required): Name to screen.

### `verify_company` (~86 tokens)

Verify a company against an official registry (GB only in v1). Costs 0.15 credits (tier 2).

Input parameters:

- `country` (string, required): ISO 3166-1 alpha-2 country code.
- `idempotency_key` (string): Optional Idempotency-Key header.
- `name` (string): Company name.
- `registration_number` (string): Registry number.

### `inspect_domain` (~64 tokens)

Inspect domain age, DNS posture, and lookalike risk. Costs 0.05 credits (tier 2).

Input parameters:

- `domain` (string, required): Domain to inspect, e.g. example.com.
- `idempotency_key` (string): Optional Idempotency-Key header.

### `screen` (~122 tokens)

Run a composite trust screen across sanctions, registry, domain, email, and phone checks. Only completed checks are charged. Optionally long-polls when still running.

Input parameters:

- `checks` (array, required): Checks to run in parallel.
- `entity` (object, required): Entity identifiers — each check uses what it needs.
- `idempotency_key` (string): Optional Idempotency-Key header.
- `max_credits` (number): Hard spend cap; excess checks are skipped.
- `wait_seconds` (integer): Long-poll up to N seconds when status is queued/running.

### `propose_check` (~75 tokens)

Propose a new check capability MadTaco does not offer yet. Optionally pledge credits (held, not charged).

Input parameters:

- `capability` (string, required): Description of the capability you want.
- `expected_monthly_volume` (integer)
- `pledge_credits` (number)
- `willing_to_pay_per_call` (number)

### `create_account` (~57 tokens)

Create a MadTaco account (agent-native signup). A 6-digit verification code is emailed — no API key yet.

Input parameters:

- `email` (string, required): Account email (disposable domains rejected).
- `name` (string): Optional display name.

### `verify_account` (~51 tokens)

Verify the emailed 6-digit code and receive an API key (tier registered).

Input parameters:

- `account_id` (string, required): account_id from create_account.
- `code` (string, required): 6-digit verification code from email.

### `get_usage` (~54 tokens)

Get today usage totals, per-operation counts, credits spent, and balance. Optional period=7d|30d for daily breakdown.

Input parameters:

- `period` (string): Include daily breakdown for the last 7 or 30 days.

## Diagnostics

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

## Score history

- 2026-08-03: 68
- 2026-08-02: 67
- 2026-08-01: 21
- 2026-07-31: 21
- 2026-07-30: 46
- 2026-07-28: 24
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/@madtaco/mcp
- Socket report: https://socket.dev/npm/package/@madtaco/mcp
- Repository: https://github.com/madtaco-dev/mcp
- Website: https://madtaco.dev/
- Changelog RSS feed: https://verifymcp.io/servers/dev-madtaco-mcp/madtaco-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-madtaco-mcp/madtaco-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/dev-madtaco-mcp/madtaco-mcp