Echoproof
io.github.est57/echoproof
About Echoproof
Echoproof is an MCP server published by the GitHub account est57. Replay real HTTP traffic against base and changed builds; flag behavior changes the intent omits.
It runs on your own machine: your AI client starts it from the cargo package echoproof at version 0.4.0.
It asks for one secret: ANTHROPIC_API_KEY. Give it a key with the least access that still works.
Version 0.4.0 was published on 15 October 2026, and the source code is public, so you can read it before installing.
Written from the registry entry. 7 automated checks on registry metadata: 3 pass, 1 warn, 0 fail, 3 info. How we check.
What it asks for
| Variable | Required | Secret | Description |
|---|---|---|---|
ANTHROPIC_API_KEY | No | Yes | Used only when a check is given an intent to judge. |
Checks
| Check | Result | Detail |
|---|---|---|
| Source repository linked | Pass | https://github.com/est57/echoproof |
| Version pinned | Pass | Every package has an explicit version |
| Secrets requested | Info | Asks for 1 secret: ANTHROPIC_API_KEY |
| Known package registry | Warn | Unrecognized registry: cargo |
| Namespace ownership | Info | Name verified via GitHub account est57 |
| Registry text aimed at the AI | Pass | Description and settings contain no hidden characters or instructions to the AI |
| Code red flags | Info | cargo packages are not read yet |
Popularity & health: 39 / 100
Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.
0 forks, 0 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.
What people say
No Hacker News threads link to its source code.
Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.
Facts
| Registry name | io.github.est57/echoproof |
|---|---|
| Publisher | GitHub account est57 |
| How the name is verified | Name verified via GitHub account est57. The registry ties the name prefix to that account or domain; it does not check the code. |
| Type | Local: runs on your machine from a package |
| Packages | cargo echoproof 0.4.0 (stdio) |
| Version | 0.4.0 |
| Published | |
| Last updated | |
| Source repository | https://github.com/est57/echoproof |
| Website | https://github.com/est57/echoproof |
| Category | Search & web (assigned by keyword rule, not by hand) |
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