# Persimmon (remote · mcp.persimmonhq.com)

Brand-intelligence MCP: momentum scoring, signal evidence, and competitive context for agents.

- Trust score: 65/100 (medium)
- Change this week: +1
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `mcp.persimmonhq.com`: 65/100 (this document), [markdown](https://verifymcp.io/servers/com-persimmonhq-persimmon/mcp.md), [page](https://verifymcp.io/servers/com-persimmonhq-persimmon/mcp)

## Channel facts

- Endpoint: `https://mcp.persimmonhq.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.1`

## 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 2026-08-03.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - 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).
  - Tool/resource definitions use about 379 tokens (~126/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**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http com-persimmonhq-persimmon https://mcp.persimmonhq.com/mcp
```

### Codex

```toml
[mcp_servers.com-persimmonhq-persimmon]
url = "https://mcp.persimmonhq.com/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add com-persimmonhq-persimmon --url https://mcp.persimmonhq.com/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-persimmonhq-persimmon:
    url: "https://mcp.persimmonhq.com/mcp"
```

### Other

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

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.

### 2026-08-02 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 64, 0)

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

### 2026-07-30 (score 64, −2)

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

### 2026-07-29 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-28 (score 65, +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.

### 2026-07-27 (score 64, 0)

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

### 2026-07-26 (score 64)

First indexed and scored.

## MCP tools (3)

### `get_momentum_index` (~128 tokens)

Use this when an agent needs Persimmon's deterministic momentum score for a specific brand or the top of the index. Returns composite score plus four dimensions (Draw, Surge, Wedge, Hold), tier band, signal count, and last-updated timestamp. Pure read; no LLM calls in scoring.

Input parameters:

- `brand` (string): Brand name. Omit to receive the full index (capped to top-N by composite score).
- `limit` (integer): When `brand` is omitted, cap the number of returned brand entries. Defaults to 50. Maximum 200.

### `get_brand_signals` (~109 tokens)

Use this when an agent needs the recent harvested signals (each with text, tier, score, and source URL) backing a brand's score. Public-citable signals only — internal-only items are filtered before emit. Always carries a coverage_status describing why a list may be empty.

Input parameters:

- `brand` (string, required): Brand name.
- `limit` (integer): Max signals to return. Defaults to 10.
- `tier_floor` (string): Minimum signal tier to include. Defaults to NOTABLE.

### `get_competitive_context` (~85 tokens)

Use this when an agent needs a brand's competitor set, peer momentum snapshots, and a deterministic competitive-position one-liner. Excludes peers without real signal coverage (scaffold tier). Always carries a coverage_status describing the result.

Input parameters:

- `brand` (string, required): Brand name.
- `limit` (integer): Max number of peer snapshots to return. Defaults to 4.

## Diagnostics

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

## Score history

- 2026-08-03: 65
- 2026-08-02: 65
- 2026-08-01: 64
- 2026-07-31: 64
- 2026-07-30: 64
- 2026-07-29: 66
- 2026-07-28: 65
- 2026-07-27: 64
- 2026-07-26: 64

## Links

- Remote endpoint: https://mcp.persimmonhq.com/mcp
- Repository: https://github.com/machiasturner/simmon-core
- Website: https://persimmonhq.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-persimmonhq-persimmon/mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-persimmonhq-persimmon/mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/com-persimmonhq-persimmon/mcp