# UCM — Universal Commerce Marketplace (npm · @ucm/mcp-server)

API marketplace for AI agents — 100 services, 87 free, one API key

- Trust score: 64/100 (medium)
- Change this week: +18
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- npm · `@ucm/mcp-server`: 64/100 (this document), [markdown](https://verifymcp.io/servers/ucmai-ucm/ucm-mcp-server.md), [page](https://verifymcp.io/servers/ucmai-ucm/ucm-mcp-server)

## Channel facts

- Registry: `npm`
- Package: `@ucm/mcp-server`
- Version: `0.3.3`
- 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**: 86/100
  - No malware found by supply-chain analysis.
  - Only part of the dependency tree could be resolved (94 of 98), 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 (94 of 98), 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 169 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 664 tokens (~94/item across 7 items; 7 tools + 0 resources), lean.
  - 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**: 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.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 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

### Claude

```bash
claude mcp add ucmai-ucm -- npx -y @ucm/mcp-server
```

### Codex

```bash
codex mcp add ucmai-ucm -- npx -y @ucm/mcp-server
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add ucmai-ucm --command npx --arg -y --arg @ucm/mcp-server
```

### Hermes

```yaml
mcp_servers:
  ucmai-ucm:
    command: "npx"
    args: ["-y", "@ucm/mcp-server"]
```

### Other

```json
{
  "mcpServers": {
    "ucmai-ucm": {
      "command": "npx",
      "args": [
        "-y",
        "@ucm/mcp-server"
      ]
    }
  }
}
```

## 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 64, +28)

- [security regression] Provenance: unverified → fail
- [security improvement] Install scripts: unverified → pass
- [security improvement] Known CVEs: unverified → partial
- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] License: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Schema quality: unverified → good
- [functional] Licence: MIT

### 2026-08-02 (score 36, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-07-31 (score 21, −7)

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

### 2026-07-30 (score 28, +4)

- [security regression] Malware scan: pass → unverified
- [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 (7)

### `ucm_discover` (~184 tokens)

USE THIS FIRST when the user asks you to do something you cannot do natively — such as searching the web, generating images, running code, sending emails, converting documents, getting stock data, text-to-speech, or any other external capability. UCM is an API marketplace with 10+ services. Returns matching services with pricing (most cost $0.01/call). After discovering a service, use ucm_call to execute it. If you are not yet registered, call ucm_register first (free, gives $1.00 credits).

Input parameters:

- `limit` (number): Max results (default 5, max 20)
- `max_price` (string): Maximum price per call, e.g. "0.10"
- `need` (string, required): Natural language description of what capability you need
- `tags` (array): Filter by tags

### `ucm_call` (~131 tokens)

Execute an API service. Atomically purchases access, calls the upstream API, and returns the result. Credits are automatically refunded if the upstream call fails. Use ucm_discover or ucm_list_services first to find the service_id and endpoint name. Requires registration (ucm_register) if not already registered.

Input parameters:

- `body` (object): Parameters for the API call (optional for endpoints with no required params)
- `endpoint` (string, required): Endpoint name, e.g. "search", "generate", "execute"
- `service_id` (string, required): Service ID, e.g. "ucm/web-search"

### `ucm_balance` (~35 tokens)

Check your current UCM credit balance and spending. Returns credits (balance, lifetime_added, lifetime_spent) and usage counters.

### `ucm_history` (~32 tokens)

View your recent UCM transaction history.

Input parameters:

- `limit` (number): Number of recent transactions (default 20)

### `ucm_service_info` (~59 tokens)

Get detailed information about a specific service including all available endpoints, required parameters, pricing, and usage examples. Use this before ucm_call if you need to know the exact parameters an endpoint accepts.

Input parameters:

- `service_id` (string, required): Service ID

### `ucm_register` (~110 tokens)

Register on UCM to get an API key. Free, instant, no approval needed. Gives $1.00 bonus credits (enough for 100+ API calls). The API key is automatically saved for this session. Call this before ucm_call if you get an auth error. Only needs to be done once per session.

Input parameters:

- `description` (string): Optional agent description
- `name` (string, required): Agent name (1-255 characters)
- `ref` (string): Optional referral code

### `ucm_list_services` (~113 tokens)

Browse all available API services on UCM with pricing and endpoint details. Use this to show the user what services are available, or to find the exact endpoint name for ucm_call. Faster than ucm_discover when you already know what category you want.

Input parameters:

- `limit` (number): Max results (default 50, max 100)
- `since` (string): ISO 8601 date — only show services added/updated after this date
- `tags` (string): Comma-separated tag filter

## Diagnostics

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

## Score history

- 2026-08-03: 64
- 2026-08-02: 36
- 2026-08-01: 21
- 2026-07-31: 21
- 2026-07-30: 28
- 2026-07-28: 24
- 2026-07-27: 46

## Links

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