# Circuit (remote · www.circuit.family)

Find and try paid AI agent skills for security, on-chain data, code, markets, research and news.

- Trust score: 84/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-04

## Components

- remote · `www.circuit.family`: 84/100 (this document), [markdown](https://verifymcp.io/servers/family-circuit-marketplace/www.md), [page](https://verifymcp.io/servers/family-circuit-marketplace/www)

## Channel facts

- Endpoint: `https://www.circuit.family/mcp`
- 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 2026-11-04.

- **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**: 70/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 443 tokens (~110/item across 4 items; 4 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 83/100
  - Stability observed for 25 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 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Circuit MCP server?

Circuit is a hosted endpoint at https://www.circuit.family/mcp, 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 family-circuit-marketplace 'https://www.circuit.family/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "family-circuit-marketplace": {
      "url": "https://www.circuit.family/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "family-circuit-marketplace": {
      "type": "http",
      "url": "https://www.circuit.family/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.family-circuit-marketplace]
url = "https://www.circuit.family/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "family-circuit-marketplace": {
      "type": "remote",
      "url": "https://www.circuit.family/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add family-circuit-marketplace --url 'https://www.circuit.family/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  family-circuit-marketplace:
    url: "https://www.circuit.family/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "family-circuit-marketplace": {
      "Transport": "http",
      "Url": "https://www.circuit.family/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add family-circuit-marketplace -t streamable-http -u 'https://www.circuit.family/mcp'
```

### Other

```json
{
  "mcpServers": {
    "family-circuit-marketplace": {
      "type": "http",
      "url": "https://www.circuit.family/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.

### 2026-11-03 (score 84, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 83, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-30 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-27 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-25 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-23 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-21 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-19 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (4)

### `find_skills` (~143 tokens)

Find skills

Search Circuit's paid AI agent skills by capability, e.g. 'phishing link', 'token price' or 'summarize a web page'. Returns each skill's id, price in USDG, summary and 30-day usage. Free.

Input parameters:

- `category` (string): Optional category, e.g. Security, On-chain, Developer, Market Data, Research, News.
- `limit` (integer): Most results to return (default 10).
- `maxPrice` (number): Optional highest price per call in USDG, e.g. 0.005.
- `query` (string): What the skill should do. Leave empty to list everything.

### `get_skill` (~66 tokens)

Get a skill

Full details for one skill: input and output schema, a real example, price, 30-day usage, uptime, rating and how to pay for it. Free.

Input parameters:

- `skill_id` (string, required): Skill id from find_skills, e.g. 'bastion/url-risk'.

### `try_skill` (~72 tokens)

Try a skill for free

Run a skill once for free on a small input (text up to 500 characters). 3 free calls per day. Paid calls have no such limits.

Input parameters:

- `input` (object, required): Input matching the skill's input schema.
- `skill_id` (string, required): Skill id, e.g. 'ticker/token-price'.

### `list_recipes` (~41 tokens)

List recipes

Workflows that chain several skills (vet a token, install a dependency safely, screen untrusted input and more), with the cost of one run. Free.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/family-circuit-marketplace/www#diagnostics

## Score history

- 2026-11-04: 84
- 2026-11-03: 84
- 2026-11-02: 83
- 2026-11-01: 83
- 2026-10-31: 82
- 2026-10-30: 82
- 2026-10-29: 81
- 2026-10-28: 81
- 2026-10-27: 81
- 2026-10-26: 80
- 2026-10-25: 80
- 2026-10-24: 79
- 2026-10-23: 79
- 2026-10-22: 78
- 2026-10-21: 78
- 2026-10-20: 77
- 2026-10-19: 77
- 2026-10-18: 76
- 2026-10-17: 76
- 2026-10-16: 75
- 2026-10-15: 75
- 2026-10-14: 74
- 2026-10-13: 74
- 2026-10-12: 74
- 2026-10-10: 73

## Common questions

### What is the Circuit MCP server?

Circuit is an MCP server listed in the public MCP registry as family.circuit/marketplace. Find and try paid AI agent skills for security, on-chain data, code, markets, research and news. This page covers its hosted endpoint (https://www.circuit.family/mcp).

### Is the Circuit MCP server safe to use?

Circuit scores 84 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 Circuit MCP server expose?

Circuit exposes 4 tools: find_skills, get_skill, try_skill, list_recipes. Their descriptions and schemas cost roughly 322 tokens of context every time the server is loaded.

### Does the Circuit MCP server require authentication?

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

### Is the Circuit MCP server still maintained?

Circuit is still listed as active in the MCP registry. We last reached this channel on 4 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://www.circuit.family/mcp
- Website: https://www.circuit.family/
- Changelog RSS feed: https://verifymcp.io/servers/family-circuit-marketplace/www.xml
- Changelog JSON feed: https://verifymcp.io/servers/family-circuit-marketplace/www.json
- HTML version of this page: https://verifymcp.io/servers/family-circuit-marketplace/www