# com.mart402/free (remote · mart402.com)

Free read-only tools: Market402 x402 index search, operator track records, PDF price quotes.

- Trust score: 76/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-24

## Components

- remote · `mart402.com`: 76/100 (this document), [markdown](https://verifymcp.io/servers/com-mart402-free/mcp-free.md), [page](https://verifymcp.io/servers/com-mart402-free/mcp-free)

## Channel facts

- Endpoint: `https://mart402.com/mcp/free`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-10-24.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - 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.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 77/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 776 tokens (~129/item across 6 items; 6 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.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the com.mart402/free MCP server?

com.mart402/free is a hosted endpoint at https://mart402.com/mcp/free, 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 com-mart402-free 'https://mart402.com/mcp/free'
```

### Cursor

```json
{
  "mcpServers": {
    "com-mart402-free": {
      "url": "https://mart402.com/mcp/free"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-mart402-free": {
      "type": "http",
      "url": "https://mart402.com/mcp/free"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-mart402-free]
url = "https://mart402.com/mcp/free"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-mart402-free": {
      "type": "remote",
      "url": "https://mart402.com/mcp/free",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-mart402-free --url 'https://mart402.com/mcp/free' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-mart402-free:
    url: "https://mart402.com/mcp/free"
```

### Netclaw

```json
{
  "McpServers": {
    "com-mart402-free": {
      "Transport": "http",
      "Url": "https://mart402.com/mcp/free"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-mart402-free -t streamable-http -u 'https://mart402.com/mcp/free'
```

### Other

```json
{
  "mcpServers": {
    "com-mart402-free": {
      "type": "http",
      "url": "https://mart402.com/mcp/free"
    }
  }
}
```

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.

### 2026-10-24 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-22 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-21 (score 74, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-20 (score 74)

First indexed and scored.

## MCP tools (6)

### `get_catalog` (~29 tokens)

Mart402 catalog (products, prices, policies)

Mart402 product catalog: all products, prices, payment config, error codes, rate limits. Free.

Output parameters:

- `body`: JSON body of the underlying call (see /samples/{product} for each product's shape)
- `how_to_pay` (string)
- `payment_required` (boolean): true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment
- `receipt_id` (string): set on paid results; free re-fetch via get_receipt
- `status` (integer): HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error)

### `quote_parse` (~63 tokens)

Quote a PDF parse (free, exact price)

Free quote for PDF parsing: page count, route (text/scan-OCR) and the exact final price, before any payment. Use the returned quote_id with parse_document (on /mcp or /mcp/docs).

Input parameters:

- `url` (string, required): PDF URL

Output parameters:

- `body`: JSON body of the underlying call (see /samples/{product} for each product's shape)
- `how_to_pay` (string)
- `payment_required` (boolean): true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment
- `receipt_id` (string): set on paid results; free re-fetch via get_receipt
- `status` (integer): HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error)

### `search_x402_services` (~88 tokens)

Search x402 services (Market402 index)

Search the Market402 verified index of the whole x402 economy by capability (e.g. 'ocr', 'market-data'). Every result is a real, probed resource with a measured 402 Score. Free.

Input parameters:

- `limit` (integer): Maximum results (default 10)
- `q` (string, required): Capability keyword, e.g. 'ocr', 'market-data', 'weather'

Output parameters:

- `body`: JSON body of the underlying call (see /samples/{product} for each product's shape)
- `how_to_pay` (string)
- `payment_required` (boolean): true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment
- `receipt_id` (string): set on paid results; free re-fetch via get_receipt
- `status` (integer): HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error)

### `get_sample` (~270 tokens)

Mart402 sample output

Free recorded sample response for a paid product (from real production runs, marked sample:true) - see the exact response shape before paying anything. Available: document-pipeline, enrich, extract, jp-bonus-net, jp-business-days, jp-company, jp-consumption-tax, jp-crypto-tax, jp-dependent-threshold, jp-mortgage, jp-overtime-wage, jp-payroll-net, jp-payroll-suite, jp-payslip-audit, jp-retirement-tax, jp-social-insurance, meal-vision, ocr, parse, pdf-info, pdf-merge, pdf-pages, portrait-analysis, report-pack, structured, style-profile, style-report, verify.

Input parameters:

- `product` (string, required): One of: document-pipeline, enrich, extract, jp-bonus-net, jp-business-days, jp-company, jp-consumption-tax, jp-crypto-tax, jp-dependent-threshold, jp-mortgage, jp-overtime-wage, jp-payroll-net, jp-pa…

Output parameters:

- `body`: JSON body of the underlying call (see /samples/{product} for each product's shape)
- `how_to_pay` (string)
- `payment_required` (boolean): true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment
- `receipt_id` (string): set on paid results; free re-fetch via get_receipt
- `status` (integer): HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error)

### `portrait_precheck` (~92 tokens)

Check a portrait photo (free)

FREE analyzability check before paying for portrait_analysis: is a face detectable, is the photo quality good enough (clipping/color cast)? Deterministic, no LLM. 10/hour/IP.

Input parameters:

- `image_base64` (string): Base64-encoded image bytes (alternative to image_url)
- `image_url` (string): Absolute http(s) URL of the image (JPEG/PNG/WebP)

Output parameters:

- `body`: JSON body of the underlying call (see /samples/{product} for each product's shape)
- `how_to_pay` (string)
- `payment_required` (boolean): true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment
- `receipt_id` (string): set on paid results; free re-fetch via get_receipt
- `status` (integer): HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error)

### `operator_history` (~64 tokens)

x402 operator track record (Market402)

Free 12-week measured score history for any x402 operator from the Market402 index (weekly series, trend, volatility, badge). Check a seller's record before your agent pays an unfamiliar endpoint.

Input parameters:

- `operator` (string, required): operator domain, e.g. mart402.com

Output parameters:

- `body`: JSON body of the underlying call (see /samples/{product} for each product's shape)
- `how_to_pay` (string)
- `payment_required` (boolean): true when status is 402: body holds x402 payment terms, not a result. Pay and call again with x_payment
- `receipt_id` (string): set on paid results; free re-fetch via get_receipt
- `status` (integer): HTTP status of the underlying call (200 result, 402 payment terms, 4xx input error)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-mart402-free/mcp-free#diagnostics

## Score history

- 2026-10-24: 76
- 2026-10-23: 75
- 2026-10-22: 75
- 2026-10-21: 74
- 2026-10-20: 74

## Common questions

### What is the com.mart402/free MCP server?

com.mart402/free is an MCP server listed in the public MCP registry as com.mart402/free. Free read-only tools: Market402 x402 index search, operator track records, PDF price quotes. This page covers its hosted endpoint (https://mart402.com/mcp/free).

### Is the com.mart402/free MCP server safe to use?

com.mart402/free scores 76 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 com.mart402/free MCP server expose?

com.mart402/free exposes 6 tools: get_catalog, quote_parse, search_x402_services, get_sample, portrait_precheck, operator_history. Their descriptions and schemas cost roughly 606 tokens of context every time the server is loaded.

### Does the com.mart402/free MCP server require authentication?

No. We connected to com.mart402/free without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the com.mart402/free MCP server still maintained?

com.mart402/free is still listed as active in the MCP registry. We last reached this channel on 24 October 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://mart402.com/mcp/free
- Website: https://mart402.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-mart402-free/mcp-free.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-mart402-free/mcp-free.json
- HTML version of this page: https://verifymcp.io/servers/com-mart402-free/mcp-free