# Cobaltcapture Cobalt MCP server

Source: https://glimind.com/server/mcp-registry%2Fcom.cobaltcapture%2Fcobalt
Registry id: `mcp-registry/com.cobaltcapture/cobalt`
Status: live (checked 2026-10-27T14:09:52.589Z)

## Verdict

Cobaltcapture Cobalt MCP server answered 99.92% of Glimind's liveness checks over 30 days, better than 30% of MCP servers, with 496 ms median handshake and 3 outages in 90 days. Its agent-readiness grade is A (95/100) across 12 tools, costing an agent about 3,628 tokens to load. Checked every few minutes; no tool is ever called.

## Measurements (30 days)

| Metric | Value | Better than |
|---|---|---|
| Uptime, 30 days | 99.92% | 30% of MCP servers |
| Median handshake latency | 496 ms | 45% of MCP servers |
| p95 handshake latency | 3025 ms | — |
| Checks in 30 days | 5,023 | — |
| Outages, 90 days | 3 | — |
| Median recovery | 7 min | — |
| Agent-readiness score | 95/100 (A) | 79% of MCP servers |
| Tools | 12 | — |
| Tool-list size for an agent | ~3,628 tokens | 43% of MCP servers |
| Days observed | 29 | — |

## Install

```json
{
  "mcpServers": {
    "cobaltcapture-cobalt-mcp-server": {
      "type": "http",
      "url": "https://cobaltcapture.com/mcp"
    }
  }
}
```

Claude Code:

```sh
claude mcp add --transport http cobaltcapture-cobalt-mcp-server https://cobaltcapture.com/mcp
```

## Tools (12)

- `add_note`: Append a free-standing text note (not tied to a screenshot) to a review created by create_review. Use for context, steps taken, or a summary of findings between
- `add_screenshot`: Append one screenshot, with an optional title and note, to the end of a review. The image is stored in Cobalt and shown in the review. Three ways to supply it: 
- `check_inbox`: Read mail delivered to an inbox from create_inbox, newest first, for example a verification code or confirmation link from the signup email of the product being
- `create_inbox`: Create a temporary email inbox for testing the signup or email flow of a product the user owns or is authorised to test, within that product's terms. Returns an
- `create_review`: Start a new Cobalt Capture review and get a handle for filling it in. Use this to compile the findings of any site study — a usability pass, a pricing teardown,
- `email_review`: Email a link to a review to the person who ran the study. Sends only to an address that belongs to a verified Cobalt account (other addresses are refused, which
- `fetch`: Fetch the full text of a Cobalt study by the id search returned, or of any Cobalt review by its URL (/r/<slug>) or slug. Returns text: findings, prices, the com
- `get_playbook`: Return the full text of a Cobalt study playbook: a step-by-step method for a kind of product review that ends in a shareable Cobalt review. Available: 'pricing_
- `get_review`: Fetch a Cobalt Capture review by its share link or slug. Returns the reviewer's notes as text AND each annotated screenshot as an image, so you can see exactly 
- `replace_screenshot`: Overwrite one existing screenshot in a review with a new capture, in the same position. Destructive: the old image and any pins or annotations on it are removed
- `search`: Search the studies Cobalt Capture has published on well-known products: pricing teardowns, positioning audits, and head-to-head comparisons (for example Canva p
- `update_review`: Set or replace a review's summary and/or title. The summary is shown at the top of the review, above every screenshot and note. Replaces any existing summary or

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.