# ListRiver (pypi · listriver-mcp)

Search new and active U.S. businesses from state registries: new LLCs by state, city, ZIP, NAICS.

- Trust score: 60/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- pypi · `listriver-mcp`: 60/100 (this document), [markdown](https://verifymcp.io/servers/listriver-llc-listriver/listriver-mcp.md), [page](https://verifymcp.io/servers/listriver-llc-listriver/listriver-mcp)

## Channel facts

- Registry: `pypi`
- Package: `listriver-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 2026-11-05.

- **Supply Chain Security**: 50/100
  - Malware scan not yet available for this package.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs setuptools.build_meta at install time, a recognised build step with no custom scripting around it.
  - 1 of 33 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to ListRiver-LLC/listriver-api).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 1 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 56/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 986 tokens (~328/item across 3 items; 3 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 not yet verified: not enough scan history yet (needs a 30-day window).
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% 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 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 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).

**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 ListRiver MCP server?

ListRiver runs locally as a PyPI package, launched with uvx listriver-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 listriver-llc-listriver -- uvx listriver-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "listriver-llc-listriver": {
      "command": "uvx",
      "args": [
        "listriver-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "listriver-llc-listriver": {
      "command": "uvx",
      "args": [
        "listriver-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add listriver-llc-listriver -- uvx listriver-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "listriver-llc-listriver": {
      "type": "local",
      "command": [
        "uvx",
        "listriver-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add listriver-llc-listriver --command uvx --arg listriver-mcp
```

### Hermes

```yaml
mcp_servers:
  listriver-llc-listriver:
    command: "uvx"
    args: ["listriver-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "listriver-llc-listriver": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "listriver-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add listriver-llc-listriver -t stdio -c uvx -a listriver-mcp
```

### Other

```json
{
  "mcpServers": {
    "listriver-llc-listriver": {
      "command": "uvx",
      "args": [
        "listriver-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.

### 2026-11-03 (score 60)

First indexed and scored.

## MCP tools (3)

### `list_states` (~48 tokens)

List the states ListRiver covers, with how many businesses each has: formed this month or last ("recent"),
in the last 12 months ("year"), and every active business ("all"). Free.

Output parameters:

- `result` (object)

### `count_businesses` (~349 tokens)

Count businesses matching the filters, per state. Free: use it before search_businesses.

Args:
    states: Comma-separated two-letter registration states, e.g. "FL" or "FL,TX". Required with city, county or zip.
    city: Comma-separated business cities, e.g. "MIAMI".
    county: Comma-separated counties, e.g. "MIAMI-DADE" (or "FL:MIAMI-DADE").
    zip: Comma-separated 5-digit ZIP codes or 3-digit ZIP prefixes, e.g. "33139,331".
    naics: Comma-separated NAICS prefixes, 2-6 digits, e.g. "23" (construction) or "722511".
    entity_type: Comma-separated of LLC, CORP, LP, LLP, NONPROFIT, OTHER.
    has_phone: Only businesses with a phone number on file.
    has_email: Only businesses with an email on file.
    formed_within: Formed in the current month or the N months before it (1 = this month or last). Set 0 for any formation date.
    formed_from: First formation month, "YYYY-MM" (overrides formed_within).
    formed_to: Last formation month, "YYYY-MM" (overrides formed_within).

Input parameters:

- `city`
- `county`
- `entity_type`
- `formed_from`
- `formed_to`
- `formed_within`
- `has_email` (boolean)
- `has_phone` (boolean)
- `naics`
- `states`
- `zip`

Output parameters:

- `result` (object)

### `search_businesses` (~346 tokens)

Get businesses matching the filters (same filters as count_businesses). USES THE USER'S RECORDS: each business
returned counts, every time it is returned, so ask only for what the user needs.

Args:
    states: Comma-separated two-letter registration states. Required with city, county or zip.
    city: Comma-separated business cities.
    county: Comma-separated counties.
    zip: Comma-separated 5-digit ZIP codes or 3-digit prefixes.
    naics: Comma-separated NAICS prefixes, 2-6 digits.
    entity_type: Comma-separated of LLC, CORP, LP, LLP, NONPROFIT, OTHER.
    has_phone: Only businesses with a phone number on file.
    has_email: Only businesses with an email on file.
    formed_within: Formed in the current month or the N months before it (1 = this month or last; 0 = any date).
    formed_from: First formation month, "YYYY-MM".
    formed_to: Last formation month, "YYYY-MM".
    limit: How many businesses to return, 1-100 (default 25).
    cursor: The cursor from a previous search_businesses answer, to get the next businesses of the same search.

Input parameters:

- `city`
- `county`
- `cursor`
- `entity_type`
- `formed_from`
- `formed_to`
- `formed_within`
- `has_email` (boolean)
- `has_phone` (boolean)
- `limit` (integer)
- `naics`
- `states`
- `zip`

Output parameters:

- `result` (object)

## Diagnostics

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

## Score history

- 2026-11-05: 60
- 2026-11-04: 60
- 2026-11-03: 60

## Common questions

### What is the ListRiver MCP server?

ListRiver is an MCP server listed in the public MCP registry as io.github.ListRiver-LLC/listriver. Search new and active U.S. businesses from state registries: new LLCs by state, city, ZIP, NAICS. This page covers its PyPI package (listriver-mcp).

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

ListRiver scores 60 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. Its build provenance is signed and verified. 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 ListRiver MCP server expose?

ListRiver exposes 3 tools: list_states, count_businesses, search_businesses. Their descriptions and schemas cost roughly 743 tokens of context every time the server is loaded.

### Is the ListRiver MCP server still maintained?

ListRiver 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 ListRiver MCP server under?

ListRiver 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

- PyPI project: https://pypi.org/project/listriver-mcp/
- Socket report: https://socket.dev/pypi/package/listriver-mcp
- Repository: https://github.com/ListRiver-LLC/listriver-api
- Website: https://listriver.com/api-docs
- Changelog RSS feed: https://verifymcp.io/servers/listriver-llc-listriver/listriver-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/listriver-llc-listriver/listriver-mcp.json
- HTML version of this page: https://verifymcp.io/servers/listriver-llc-listriver/listriver-mcp