MCP server

Stamp

io.github.theoddden/stamp

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

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

Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

6

Token cost

About 764 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

25 Oct 2026, 20:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

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

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

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

Gemini CLI

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

Cursor

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

VS Code

{"servers":{"stamp":{"type":"http","url":"https://stamp-mcp.terradev.cloud/mcp"}}}

Antigravity

agy mcp add stamp https://stamp-mcp.terradev.cloud/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"stamp","server_url":"https://stamp-mcp.terradev.cloud/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"stamp","server_url":"https://stamp-mcp.terradev.cloud/mcp"}

Tools

• attest ~145 tokens
  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 ~131 tokens
  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 ~133 tokens
  Unified diff between two texts, with added/removed line counts. For reviewing edits, comparing outputs, or validating transformations.
• generate_uuid ~88 tokens
  Generate one or more random UUIDv4 identifiers -- for records, sessions, and IDs created in agent pipelines.
• get_time ~163 tokens
  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 ~104 tokens
  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.

Browse

• GitHub tools
• GitHub and code hosting

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