Evalsnap runs on your own machine — the client starts it, so there is no endpoint to ping. 304 installs a week from npm. Last commit 2 Nov 2026.
Snapshot diff for agent and tool outputs: changed cases, score regressions, pass/fail verdict.
Today is the operative word: we check Evalsnap 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 evalsnap -- npx -y @reneturcios/evalsnap
{
"mcpServers": {
"evalsnap": {
"command": "npx",
"args": [
"-y",
"@reneturcios/evalsnap"
]
}
}
}
[mcp_servers.evalsnap]
command = "npx"
args = ["-y", "@reneturcios/evalsnap"]
{
"mcpServers": {
"evalsnap": {
"command": "npx",
"args": [
"-y",
"@reneturcios/evalsnap"
]
}
}
}
{
"servers": {
"evalsnap": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@reneturcios/evalsnap"
]
}
}
}
Snapshot tests for AI tool-call traces: diff, validate, and catch silent regressions.
Local-first visual regression for AI agents: verdicts, diff images, explain_snapshot. No API key.
AI-optimized tool output compression for read, grep, diff, bash, test, web, search, and more
Visual regression & snapshot testing for AI agents — list runs, read semantic diffs, review.
Capture screenshots, detect visual regressions between page versions, and analyze with AI.
Shared failure knowledge for agents: check known tool failures, report failures and outcomes.
Verified latest versions, changes and exact-error fixes for agent dev tools. Read-only.
Score repos for launch and agent readiness, find verified agents, read collaborations. Read-only.
Answers built from our own checks of this server.