Calc MCP vs Lighthouse MCP
A side-by-side look at the Calc MCP and Lighthouse MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Calc MCP for developer tools work as a local process; choose Lighthouse MCP for developer tools as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Calc MCP when
- You need dedicated capabilities in the Developer Tools domain.
- You prefer a local stdio subprocess transport.
- You want tools like
random, hash, base64.
Choose Lighthouse MCP when
- You need dedicated capabilities in the Developer Tools domain.
- You prefer a local stdio subprocess transport.
- You want tools like
run_audit, get_performance_score.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Developer Tools | Developer Tools |
| Quality signal | 65/100 · Great | 65/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | Not declared |
| Pricing | Not declared | Not declared |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 9 | 212 |
| Directory activity | 0 views 0 installs 0 upvotes | 4 views 0 installs 0 upvotes |
| Tools | 21 | 2 |
| Full listing | View Calc MCP | View Lighthouse MCP |
Tools & capabilities
Calc MCP tools 21
randomGenerate random values: UUID, ULID, secure password (with fine-grained options), random number, or shuffle a listhashCompute hash or HMAC of a string using MD5, SHA1, SHA256, SHA512, or CRC32. WARNING: MD5 and SHA1 are cryptographically broken and MUST NOT be used for security (use SHA-256 or SHA-512 instead).base64Encode or decode Base64 stringsencodeEncode or decode strings using URL, HTML, or Unicode encodingdatetimeGet current datetime, convert timezones, format dates, and convert UNIX timestampscountCount characters (grapheme clusters), words, lines, and bytes in textmathEvaluate math expressions or compute statistics on numbersdateDate calculations: diff between dates, add to date, weekday, and Japanese wareki conversionregexTest, match, matchAll, or replace using regular expressionsbaseConvert numbers between bases (2-36), supports large numbers via BigIntdiffCompare two texts: line-by-line diff (Myers algorithm, falls back to full replacement if edit distance exceeds 1000) or Levenshtein distanceformat_validateValidate and parse JSON, CSV, XML, or YAML strings- +9 more on the listing page
Lighthouse MCP tools 2
run_auditRun a Lighthouse audit on a URLget_performance_scoreGet just the performance score for a URL
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Calc MCP
{
"mcpServers": {
"calc-mcp": {
"command": "npx",
"args": [
"-y",
"@coo-quack/calc-mcp@2.1.2"
]
}
}
}
Lighthouse MCP
{
"mcpServers": {
"lighthouse-mcp": {
"command": "npx",
"args": [
"lighthouse-mcp"
]
}
}
}
Frequently asked questions
Calc MCP is categorized under Developer Tools and uses a local stdio subprocess. Lighthouse MCP belongs to Developer Tools and uses a local stdio subprocess. Pick Calc MCP for developer tools work and Lighthouse MCP for developer tools.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Calc MCP has no declared pricing — check the project's own site. Lighthouse MCP has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add calc-mcp and lighthouse-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Calc MCP has a quality signal of 65/100 (Great) with 0 views, 0 installs and 9 GitHub stars. Lighthouse MCP has 65/100 (Great) with 4 views, 0 installs and 212 GitHub stars.