# Tuatara Decide (remote · cymetica.com)

Train a text classifier from your labelled examples in a minute; label texts with probabilities.

- Trust score: 74/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `cymetica.com`: 74/100 (this document), [markdown](https://verifymcp.io/servers/com-cymetica-tuatara-decide/mcp-v1-decide.md), [page](https://verifymcp.io/servers/com-cymetica-tuatara-decide/mcp-v1-decide)

## Channel facts

- Endpoint: `https://cymetica.com/mcp/v1/decide`
- 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 2026-11-05.

- **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 (good).
  - Tool/resource definitions use about 561 tokens (~93/item across 6 items; 6 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 10/100
  - Stability observed for 3 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.
- **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 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the Tuatara Decide MCP server?

Tuatara Decide is a hosted endpoint at https://cymetica.com/mcp/v1/decide, 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-cymetica-tuatara-decide 'https://cymetica.com/mcp/v1/decide'
```

### Cursor

```json
{
  "mcpServers": {
    "com-cymetica-tuatara-decide": {
      "url": "https://cymetica.com/mcp/v1/decide"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-cymetica-tuatara-decide": {
      "type": "http",
      "url": "https://cymetica.com/mcp/v1/decide"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-cymetica-tuatara-decide]
url = "https://cymetica.com/mcp/v1/decide"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-cymetica-tuatara-decide": {
      "type": "remote",
      "url": "https://cymetica.com/mcp/v1/decide",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-cymetica-tuatara-decide --url 'https://cymetica.com/mcp/v1/decide' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-cymetica-tuatara-decide:
    url: "https://cymetica.com/mcp/v1/decide"
```

### Netclaw

```json
{
  "McpServers": {
    "com-cymetica-tuatara-decide": {
      "Transport": "http",
      "Url": "https://cymetica.com/mcp/v1/decide"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-cymetica-tuatara-decide -t streamable-http -u 'https://cymetica.com/mcp/v1/decide'
```

### Other

```json
{
  "mcpServers": {
    "com-cymetica-tuatara-decide": {
      "type": "http",
      "url": "https://cymetica.com/mcp/v1/decide"
    }
  }
}
```

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.

### 2026-11-05 (score 74, +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.

### 2026-11-03 (score 73, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-11-02 (score 72)

First indexed and scored.

## MCP tools (6)

### `register_agent` (~170 tokens)

Register Agent

Register this agent and get its API key — the same as POST https://cymetica.com/mcp/v1/register, no key needed. Returns api_key (shown once) and agent_id. Then either set it as the X-API-Key (or Authorization: Bearer) header of this connection, or pass it as "api_key" in the arguments of any later tool call — e.g. get_deposit_address {"api_key": "<key>"}.

Input parameters:

- `contact_email` (string, required): Your owner's email
- `intended_use` (string, required): What you plan to do, e.g. 'investment for my owner'
- `name` (string, required): Your agent's name
- `via` (string): Optional: your client (chatgpt, claude, muse, …)

### `get_decide_info` (~46 tokens)

Get Decide Info

Tuatara Decide: what it is, the NEXUS plan allowances (classifiers and decisions a week), limits and the public benchmark evidence. Read-only, no auth.

### `list_decide_classifiers` (~29 tokens)

List Decide Classifiers

Tuatara Decide: your classifiers, your plan and its classifier limit and weekly decisions.

### `get_decide_classifier` (~70 tokens)

Get Decide Classifier

Tuatara Decide: one classifier's status (queued / training / ready / failed), labels and expected accuracy on held-out examples. Poll this after creating one.

Input parameters:

- `classifier_id` (string, required): classifier id, e.g. dc_4c612ec44c794df5bd82

### `decide_create_classifier` (~136 tokens)

Decide Create Classifier

Tuatara Decide: train a text classifier from labelled examples (at least 2 per label, up to 255 labels). Training takes about a minute for small sets and draws on the account's NEXUS plan; the Free plan allows 1 classifier.

Input parameters:

- `examples` (array, required): labelled examples: [{"text": "...", "label": "..."}, ...]
- `instructions` (string): what the labels mean (used only by a general-model fallback)
- `name` (string, required): a name for the classifier
- `threshold` (number): confidence under which a result is flagged unsure (default 0.5)

### `decide_predict` (~110 tokens)

Decide Predict

Tuatara Decide: label up to 256 texts with a ready classifier. Each result has the label, its confidence, every label's probability and unsure=true when confidence is under the classifier's threshold. Each text counts as one decision on the account's plan.

Input parameters:

- `classifier_id` (string, required): classifier id, e.g. dc_4c612ec44c794df5bd82
- `text` (string): a single text to label
- `texts` (array): texts to label

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-cymetica-tuatara-decide/mcp-v1-decide#diagnostics

## Score history

- 2026-11-05: 74
- 2026-11-04: 73
- 2026-11-03: 73
- 2026-11-02: 72

## Common questions

### What is the Tuatara Decide MCP server?

Tuatara Decide is an MCP server listed in the public MCP registry as com.cymetica/tuatara-decide. Train a text classifier from your labelled examples in a minute; label texts with probabilities. This page covers its hosted endpoint (https://cymetica.com/mcp/v1/decide).

### Is the Tuatara Decide MCP server safe to use?

Tuatara Decide scores 74 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 Tuatara Decide MCP server expose?

Tuatara Decide exposes 6 tools: register_agent, get_decide_info, list_decide_classifiers, get_decide_classifier, decide_create_classifier, decide_predict. Their descriptions and schemas cost roughly 561 tokens of context every time the server is loaded.

### Does the Tuatara Decide MCP server require authentication?

No. We connected to Tuatara Decide without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Tuatara Decide MCP server still maintained?

Tuatara Decide 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.

## Links

- Remote endpoint: https://cymetica.com/mcp/v1/decide
- Website: https://cymetica.com/decide
- Changelog RSS feed: https://verifymcp.io/servers/com-cymetica-tuatara-decide/mcp-v1-decide.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-cymetica-tuatara-decide/mcp-v1-decide.json
- HTML version of this page: https://verifymcp.io/servers/com-cymetica-tuatara-decide/mcp-v1-decide