# Simmer (npm · simmer-mcp)

Trade prediction markets with AI agents — skill discovery, autoresearch, and execution.

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

## Components

- npm · `simmer-mcp`: 68/100 (this document), [markdown](https://verifymcp.io/servers/adlai88-simmer-mcp/simmer-mcp.md), [page](https://verifymcp.io/servers/adlai88-simmer-mcp/simmer-mcp)

## Channel facts

- Registry: `npm`
- Package: `simmer-mcp`
- Version: `3.3.2`
- 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 34 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 156 tokens (~52/item across 3 items; 3 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**: 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.

## Install

### Claude

```bash
claude mcp add adlai88-simmer-mcp -- npx -y simmer-mcp
```

### Codex

```bash
codex mcp add adlai88-simmer-mcp -- npx -y simmer-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "adlai88-simmer-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "simmer-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add adlai88-simmer-mcp --command npx --arg -y --arg simmer-mcp
```

### Hermes

```yaml
mcp_servers:
  adlai88-simmer-mcp:
    command: "npx"
    args: ["-y", "simmer-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "adlai88-simmer-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "simmer-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, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-02 (score 64, +30)

- [security regression] Provenance: unverified → fail
- [security improvement] Known CVEs: unverified → partial
- [security improvement] Install scripts: unverified → pass
- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Capabilities: pass → unverified
- [functional regression] Security disclosure: fail → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] Dependency health: unverified → partial
- [functional improvement] License: unverified → pass
- [functional] First check of Schema quality: unverified
- [functional] Licence: MIT

### 2026-08-01 (score 34, −14)

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

### 2026-07-31 (score 48, +2)

- [security regression] Provenance: unverified → fail
- [security regression] Malware scan: pass → unverified
- [security improvement] Install scripts: unverified → pass
- [functional improvement] Schema quality: unverified → good
- [functional improvement] Maintenance: unverified → pass
- [functional improvement] License: unverified → pass
- [functional] Licence: MIT

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

First indexed and scored.

## MCP tools (3)

### `list_skills` (~38 tokens)

List all Simmer trading skills available in this package. Returns slug, name, version, tier, and whether the skill requires a Pro plan.

### `get_skill_docs` (~54 tokens)

Get the full SKILL.md documentation for a specific Simmer skill. Includes description, parameters, usage examples, and troubleshooting tips.

Input parameters:

- `slug` (string, required): Skill slug (e.g. 'polymarket-fast-loop')

### `troubleshoot_error` (~64 tokens)

Look up a Simmer API error and get a fix. Pass the error message or JSON response from a failed API call. Returns a matched fix or falls back to docs.

Input parameters:

- `error_text` (string, required): The error message or response body from a failed Simmer API call

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/adlai88-simmer-mcp/simmer-mcp#diagnostics

## Score history

- 2026-08-03: 68
- 2026-08-02: 64
- 2026-08-01: 34
- 2026-07-31: 48
- 2026-07-30: 46
- 2026-07-28: 46
- 2026-07-27: 46

## Links

- npm package: https://www.npmjs.com/package/simmer-mcp
- Socket report: https://socket.dev/npm/package/simmer-mcp
- Repository: https://github.com/SpartanLabsXyz/simmer-sdk
- Website: https://simmer.markets/
- Changelog RSS feed: https://verifymcp.io/servers/adlai88-simmer-mcp/simmer-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/adlai88-simmer-mcp/simmer-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/adlai88-simmer-mcp/simmer-mcp