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stamp

io.github.theoddden/stamp
Herramientas para desarrolladores Seguridad Público y accesible MCP 2026-07-28

Qué hace este MCP

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

Capacidades

Herramientas

6 herramientas
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.
Esquema de entrada 
{'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.
Esquema de entrada 
{'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.
Esquema de entrada 
{'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.
Esquema de entrada 
{'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.
Esquema de entrada 
{'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.
Esquema de entrada 
{'type': 'object', 'required': ['attested'], 'properties': {'attested': {'type': 'object', 'description': 'The record returned by attest'}}}
Historial

Cambios recientes en herramientas

Añadido
verify
17 de September de 2026 a las 12:52
Añadido
attest
17 de September de 2026 a las 12:52
Añadido
calculate
17 de September de 2026 a las 12:52
Añadido
diff
17 de September de 2026 a las 12:52
Añadido
generate_uuid
17 de September de 2026 a las 12:52
Añadido
get_time
17 de September de 2026 a las 12:52
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