five46 runs on your own machine — the client starts it, so there is no endpoint to ping. 125 installs a week from npm. Last commit 19 Oct 2026.
BYOK, fully local AI agent that tests your app/API and writes a real Playwright spec on success.
Today is the operative word: we check five46 every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add five46 -e 'FIVE46_LLM_PROVIDER=<FIVE46_LLM_PROVIDER>' -e 'FIVE46_LLM_API_KEY=<FIVE46_LLM_API_KEY>' -- npx -y five46
{
"mcpServers": {
"five46": {
"command": "npx",
"args": [
"-y",
"five46"
],
"env": {
"FIVE46_LLM_API_KEY": "<FIVE46_LLM_API_KEY>",
"FIVE46_LLM_PROVIDER": "<FIVE46_LLM_PROVIDER>"
}
}
}
}
[mcp_servers.five46]
command = "npx"
args = ["-y", "five46"]
env = { FIVE46_LLM_PROVIDER = "<FIVE46_LLM_PROVIDER>", FIVE46_LLM_API_KEY = "<FIVE46_LLM_API_KEY>" }
{
"mcpServers": {
"five46": {
"command": "npx",
"args": [
"-y",
"five46"
],
"env": {
"FIVE46_LLM_API_KEY": "<FIVE46_LLM_API_KEY>",
"FIVE46_LLM_PROVIDER": "<FIVE46_LLM_PROVIDER>"
}
}
}
}
{
"servers": {
"five46": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"five46"
],
"env": {
"FIVE46_LLM_API_KEY": "<FIVE46_LLM_API_KEY>",
"FIVE46_LLM_PROVIDER": "<FIVE46_LLM_PROVIDER>"
}
}
}
}
Put your own values in place of
<FIVE46_LLM_PROVIDER> (LLM provider to use: openai, anthropic, gemini, groq, or bedrock), <FIVE46_LLM_API_KEY> (Your own API key for the chosen provider (for bedrock, your AWS region instead)).
The author’s registry entry marks them as required.
Optional settings from the registry entry, left out of the block above:
FIVE46_MCP_ALLOW_WRITES (Set to 1 to unlock POST/PUT/PATCH for the five46_api tool (read-only by default)), FIVE46_MCP_ALLOW_DELETES (Set to 1 to unlock DELETE (five46_api) and destructive-looking browser clicks (five46_test)), FIVE46_MCP_CONCURRENCY (Max concurrent scenarios for story mode (default: 2 for five46_test, 3 for five46_api; hard-capped at 5)).
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Answers built from our own checks of this server.