MCPサーバー

stamp

            io.github.theoddden/stamp
        

開発者向けツールセキュリティ公開・接続可能 MCP 2026-07-28

このMCPでできること

Offers agent workflow utilities for time verification, calculations, UUID generation, text diffs, and tamper-evident record creation and verification.

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.

入力スキーマ

{'type': 'object', 'required': ['payload'], 'properties': {'server': {'type': 'string', 'default': 'time.cloudflare.com', 'description': 'NTP server for the verified timestamp'}, 'payload': {'description': 'Any JSON value to attest'}}}

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.

入力スキーマ

{'type': 'object', 'required': ['expression'], 'properties': {'expression': {'type': 'string', 'description': 'e.g. "(1500 * 0.23) + 47"'}}}

diff

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

入力スキーマ

{'type': 'object', 'required': ['text_a', 'text_b'], 'properties': {'text_a': {'type': 'string', 'description': 'Original text'}, 'text_b': {'type': 'string', 'description': 'Revised text'}, 'context': {'type': 'integer', 'default': 3, 'minimum': 0, 'description': 'Lines of context around each change'}}}

generate_uuid

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

入力スキーマ

{'type': 'object', 'properties': {'count': {'type': 'integer', 'default': 1, 'maximum': 1000, 'minimum': 1, 'description': 'How many UUIDs to generate'}}}

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.

入力スキーマ

{'type': 'object', 'properties': {'server': {'type': 'string', 'default': 'time.cloudflare.com', 'description': 'NTP server to query'}, 'timezone': {'type': 'string', 'description': "IANA timezone for a 'local' field, e.g. America/New_York. Optional -- the HTTP transport also takes ?tz= in the URL."}}}

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.

入力スキーマ

{'type': 'object', 'required': ['attested'], 'properties': {'attested': {'type': 'object', 'description': 'The record returned by attest'}}}

追加

                            verify
                        

2026年9月17日12:52

追加

                            attest
                        

2026年9月17日12:52

追加

                            calculate
                        

2026年9月17日12:52

追加

                            diff
                        

2026年9月17日12:52

追加

                            generate_uuid
                        

2026年9月17日12:52

追加

                            get_time
                        

2026年9月17日12:52

サーバー情報

バージョン

0.6.1

通信方式

Streamable HTTP

ツール

レイテンシ

679 ms

最終スキャン

2026年10月1日2:50

初回確認

2026年9月13日2:23

エンドポイント

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

stamp

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ツール

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