Stamp MCP Server

by theoddden Your server? Claim it

answering

Stamp is answering right now. Last checked 15 min ago. 584 installs a week from pypi. It exposes 6 tools.

Concierge MCP for agentic workflows: verified time + drift, uuid, diff, calc, attest, verify.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 12 days of history · worst day 99%

12 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

478 ms

Response time

average over 24h

584

Installs / week

npm and PyPI

What changed 17

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 8 September 2026. No other catalogue keeps this.

12 Sep a tool changed version3 times that day

12 Sep 2 tools disappeared canon, get_drift

12 Sep a tool appeared canon

12 Sep a tool description was rewritten get_time

10 Sep a tool changed version2 times that day

9 Sep a tool changed version5 times that day

8 Sep 2 tools appeared attest, verify

8 Sep a tool changed version

and 7 more, back to 8 September 2026

What the code does

We read the source, 6 d ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs an external command client.py:38

    proc = subprocess.Popen(

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add stamp --transport http https://stamp-mcp.terradev.cloud/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "stamp": {
      "url": "https://stamp-mcp.terradev.cloud/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.stamp]
url = "https://stamp-mcp.terradev.cloud/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "stamp": {
      "url": "https://stamp-mcp.terradev.cloud/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "stamp": {
      "url": "https://stamp-mcp.terradev.cloud/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

attest

attest

Wrap any payload in a tamper-evident record: a UUID, a timestamp (NTP-verified when reachable, local clock otherwise -- the record says which), and a sha256 over the canonical record. One call, the record is complete and tamper-evident.

calculate

calculate

Evaluate a math expression safely: + - * / // % **, parentheses, functions (abs round min max sqrt floor ceil exp log log2 log10 pow sin cos tan), constants pi e tau inf. Parsed to an AST and only whitelisted nodes are computed -- no eval(), no names, no arbitrary code.

diff

diff

Unified diff between two texts, with added/removed line counts. For reviewing edits, comparing outputs, or validating transformations.

generate

generate_uuid

Generate one or more random UUIDv4 identifiers -- for records, sessions, and IDs created in agent pipelines.

time

get_time

Query an NTP server for current UTC time and this clock's offset. Appends the sample to the drift log and returns the trend inline: current offset, drift rate (ms/day), and whether the clock is stable, drifting, or accelerating.

verify

verify

Check a record produced by attest: recompute the sha256 over the record and compare. Pass/fail -- did this payload produce this hash at this timestamp. Any modified field breaks it.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

canon

removed 12 Sep 2026

get_drift

removed 12 Sep 2026

Endpoints

URL	Transport	State	Latency	Checked
https://stamp-mcp.terradev.cloud/mcp	streamable-http	answering	464 ms	15 min ago

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Stamp — questions

Answers built from our own checks of this server.

What can Stamp do?

It exposes 6 tools, read directly from the server on our last check. Among them: attest, calculate, diff, generate_uuid, get_time, verify. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Stamp working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 478 ms. The bar chart above shows every period we have measured.

Did Stamp ever remove tools?

Yes. canon, get_drift are no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.

Is Stamp still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect Stamp?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Stamp need an API key?

No. Stamp completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Stamp?

It answers our handshake in 478 ms on average, which is faster than 31% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

How many people use Stamp?

The pypi package stamp-mcp was installed 584 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.