# ComputeFirst (remote · computefirst.net)

Free deterministic tools for math, data transforms, dates, text, statistics, finance, and units.

- Trust score: 70/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `computefirst.net`: 70/100 (this document), [markdown](https://verifymcp.io/servers/321zz321-computefirst/computefirst.md), [page](https://verifymcp.io/servers/321zz321-computefirst/computefirst)

## Channel facts

- Endpoint: `https://computefirst.net/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 2026-11-05.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (remove_saved_tool).
  - 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**: 61/100
  - AI-judged instruction clarity (fair).
  - Tool/resource definitions use about 1165 tokens (~77/item across 15 items; 15 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 67/100
  - Stability observed for 20 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 73/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 5% of tool parameters carry a description.
  - Structured output schemas are declared (27% of tools); any adoption earns full credit.
- **Tool Safety**: 83/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - 1 of 3 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "execute" implies "execute" and declares readOnlyHint instead, contradicting what its own name says it does.
  - An AI judge read all 16 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

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

ComputeFirst is a hosted endpoint at https://computefirst.net/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 321zz321-computefirst 'https://computefirst.net/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "321zz321-computefirst": {
      "url": "https://computefirst.net/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "321zz321-computefirst": {
      "type": "http",
      "url": "https://computefirst.net/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.321zz321-computefirst]
url = "https://computefirst.net/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "321zz321-computefirst": {
      "type": "remote",
      "url": "https://computefirst.net/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add 321zz321-computefirst --url 'https://computefirst.net/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  321zz321-computefirst:
    url: "https://computefirst.net/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "321zz321-computefirst": {
      "Transport": "http",
      "Url": "https://computefirst.net/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add 321zz321-computefirst -t streamable-http -u 'https://computefirst.net/mcp'
```

### Other

```json
{
  "mcpServers": {
    "321zz321-computefirst": {
      "type": "http",
      "url": "https://computefirst.net/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.

### 2026-11-04 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-02 (score 69, +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.

### 2026-10-31 (score 68, 0)

- [functional] MCP protocol: Implements a current MCP spec version (2026-07-28).
- [functional] MCP protocol version: 2025-11-25 → 2026-07-28

### 2026-10-30 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-28 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-26 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-24 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-22 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (15)

### `search` (~88 tokens)

Search tools

Search the ComputeFirst catalog (computefirst.net/tools) with an English task. Returns up to 5 tools (3 by default) with id, version and a 0–1 score; a confident first match includes its input contract. No match: request_tool can ask for one.

Input parameters:

- `include_contract` (boolean)
- `limit` (integer)
- `query` (string, required)

Output parameters:

- `hint` (string)
- `method` (string)
- `results` (array)

### `describe` (~39 tokens)

Describe a tool

Input schema, limits and examples of one ComputeFirst catalog tool, by id and version.

Input parameters:

- `id` (string, required)
- `version` (string, required)

Output parameters:

- `description` (string)
- `id` (string)
- `input_schema` (object)
- `version` (string)

### `execute` (~86 tokens)

Run a tool

Run one ComputeFirst catalog tool by id and version with its JSON input. Returns the deterministic result and an unmeasured savings receipt. Limits: computefirst.net/docs#limits.

Input parameters:

- `id` (string, required)
- `input` (object, required)
- `model` (string): Optional: your model id, only so savings can be shown per model
- `version` (string, required)

Output parameters:

- `invite` (string)
- `result`
- `savings` (object)

### `execute_batch` (~149 tokens)

Run tools in one batch

Run 1–20 ComputeFirst catalog tools in one request. Optional bindings fill an input key from an earlier result (JSON Pointer); include_result:false omits an intermediate. Steps after a failed dependency are skipped; nothing is retried automatically. Each success is one execution. Inputs, results and response: 256 KiB each. A factory work budget can skip an item with batch_work_limit; finance and exact decimal power/root/expression tools use the full factory allowance. Send additional factory operations separately. Split refused work; successful items are never retried automatically.

Input parameters:

- `model` (string): Optional: your model id, only so savings can be shown per model
- `operations` (array, required)

Output parameters:

- `invite` (string)
- `results` (array)
- `summary` (object)

### `savings` (~46 tokens)

Read savings

Savings totals, optionally for one model: with a key, the account's measured and estimated totals; otherwise community verified totals. Unmeasured is not zero.

Input parameters:

- `model` (string)

### `feedback` (~68 tokens)

Send feedback

Tell ComputeFirst what helped or went wrong (a missing tool fits request_tool). A stable request_id makes retries safe. Leave out secrets and raw data.

Input parameters:

- `category` (string, required)
- `execution_ref` (string)
- `message` (string, required)
- `request_id` (string, required)

### `request_tool` (~92 tokens)

Request a missing tool

Ask for a tool that does not exist yet: the task, optionally example input and output. Optional contact_email (with email_consent:true), only if the person wants one email when it ships. Leave out secrets.

Input parameters:

- `contact_email` (string)
- `description` (string, required)
- `email_consent` (boolean)
- `example_input` (string)
- `example_output` (string)

### `subscribe` (~46 tokens)

Subscribe to new-tool emails

Subscribe an email to new-tool announcements, only when the person asks for them (consent:true). Every email has an unsubscribe link.

Input parameters:

- `consent` (required)
- `email` (string, required)

### `sign_in` (~96 tokens)

Create a free account (optional)

Only when the person explicitly asks for a free account (consent:true): creates one for their email (unverified) and returns an agent key once, for saved tools, history, personal savings and a higher limit. The person stores the key in their client settings; do not repeat it in the conversation. newsletter:true only if they ask.

Input parameters:

- `consent` (required)
- `email` (string, required)
- `newsletter` (boolean)

### `profile` (~32 tokens)

Show account profile

The signed-in account: keys, privileges and tool-request status. Without a key: signed_in:false and the optional extras.

### `activity` (~45 tokens)

Show account activity

The account's recent calls and outcomes; pass next as before for older ones. Without a key: signed_in:false.

Input parameters:

- `before` (string)
- `limit` (integer)

### `list_saved_tools` (~34 tokens)

List saved tools

Tools saved in the account's library (id, version, note). Without a key: signed_in:false and no tools.

### `save_tool` (~59 tokens)

Save a tool

Save a tool id and version to the account's library, with an optional note (saving again replaces the note). Without a key nothing is saved.

Input parameters:

- `id` (string, required)
- `note` (string)
- `version` (string, required)

### `remove_saved_tool` (~41 tokens)

Remove a saved tool

Remove a tool id and version from the account's library. Without a key nothing changes.

Input parameters:

- `id` (string, required)
- `version` (string, required)

### `report_savings` (~138 tokens)

Report model and savings (optional)

Optional, for the person: your model id and, if known, your own estimate of the tokens a call saved (estimated_tokens_saved). Returns its dollar value at public list prices; unknown stays null. A measured comparison adds task_id, baseline_id, baseline, actual, whole_task:true, execution_ref.

Input parameters:

- `actual` (object)
- `baseline` (object)
- `baseline_id` (string)
- `estimated_tokens_saved` (object)
- `execution_ref` (string)
- `model` (string, required)
- `provider` (string)
- `task_id` (string)
- `whole_task`

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/321zz321-computefirst/computefirst#diagnostics

## Score history

- 2026-11-05: 70
- 2026-11-04: 70
- 2026-11-03: 69
- 2026-11-02: 69
- 2026-11-01: 68
- 2026-10-31: 68
- 2026-10-30: 68
- 2026-10-29: 67
- 2026-10-28: 67
- 2026-10-27: 66
- 2026-10-26: 66
- 2026-10-25: 65
- 2026-10-24: 65
- 2026-10-23: 64
- 2026-10-22: 64
- 2026-10-21: 63
- 2026-10-20: 63
- 2026-10-19: 62
- 2026-10-18: 62
- 2026-10-17: 61
- 2026-10-16: 61

## Common questions

### What is the ComputeFirst MCP server?

ComputeFirst is an MCP server listed in the public MCP registry as io.github.321zz321/computefirst. Free deterministic tools for math, data transforms, dates, text, statistics, finance, and units. This page covers its hosted endpoint (https://computefirst.net/mcp).

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

ComputeFirst scores 70 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 ComputeFirst MCP server expose?

ComputeFirst exposes 15 tools: search, describe, execute, execute_batch, savings, and 10 more. Their descriptions and schemas cost roughly 1,059 tokens of context every time the server is loaded.

### Does the ComputeFirst MCP server require authentication?

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

### Is the ComputeFirst MCP server still maintained?

ComputeFirst 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://computefirst.net/mcp
- Repository: https://github.com/321zz321/computefirst-skill
- Website: https://computefirst.net/
- Changelog RSS feed: https://verifymcp.io/servers/321zz321-computefirst/computefirst.xml
- Changelog JSON feed: https://verifymcp.io/servers/321zz321-computefirst/computefirst.json
- HTML version of this page: https://verifymcp.io/servers/321zz321-computefirst/computefirst