unsubscribe: MCP tool

The same name does not mean the same tool here.

1316 servers expose unsubscribe and we have recorded 5 distinct definitions of it. Compare the parameters below before assuming one is a drop-in for another.

io.github.pipeworx-io/europepmc error

Europe PubMed Central — biomedical literature search and full text

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-07-29 repository

io.github.pipeworx-io/eurostat reachable

Eurostat MCP — wraps Eurostat Statistical Data API (no auth required)

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/exa reachable

Exa MCP — neural/semantic web search + content retrieval (exa.ai)

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/exchange reachable

Exchange MCP — wraps the Frankfurter currency exchange API (free, no auth)

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/exchangerate reachable

ExchangeRate MCP — wraps open.er-api.com (free, no auth)

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/excuse reachable

excuse MCP — wraps StupidAPIs (requires X-API-Key)

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/exoplanet-archive reachable

NASA Exoplanet Archive — ~5600 confirmed exoplanets + candidates

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/expression-atlas reachable

EBI Expression Atlas MCP.

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/f1 reachable

F1 MCP — Formula 1 data via the Ergast API

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/faa-delays reachable

FAA Delays MCP — live US airport operational status (FAA, free, no auth).

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/faa-regulations reachable

FAA Regulations MCP — US Federal Aviation Regulations (14 CFR, 'FARs').

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/fac reachable

Federal Audit Clearinghouse (FAC) MCP — US single-audit data.

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/facebook_ads reachable

Facebook Ads MCP Pack

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/fara reachable

FARA (Foreign Agents Registration Act) MCP.

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/fas reachable

FAS MCP — USDA Foreign Agricultural Service (trade & global production data)

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/fbi-artcrimes error

FBI Art Crimes MCP — FBI National Stolen Art File (free, no auth).

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-26 repository

io.github.pipeworx-io/fbi-crime reachable

FBI Crime Data Explorer MCP — UCR/NIBRS statistics

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/fbi-wanted reachable

FBI Wanted MCP.

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

io.github.pipeworx-io/fbiwanted error

FBI Wanted MCP — FBI Wanted public API (free, no auth)

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-26 repository

io.github.pipeworx-io/fcc reachable

FCC public geo/census APIs (geo.fcc.gov) MCP.

Unsubscribe from Alerts

Cancel a subscription by id. Ownership is enforced — you can only cancel your own subscriptions. The row is deactivated (not deleted) so its historical events stay available via recent_alerts.

Parameter	Type	Description
id*	string	Subscription id (uuid) returned by subscribe.

* required

Author's annotations: readOnlyHint=False, openWorldHint=True, idempotentHint=True, destructiveHint=False. These are claims by whoever wrote the server, not something we verified.

no output schema sha256 b377a1b22c1cd914 read 2026-08-27 repository

Every field above is reproduced as the server published it at the time shown. The description and the annotations are claims by the server's author. Toolpin does not call tools, so we cannot tell you whether a tool does what it says.

What we can tell you is whether the claim changed. The hash covers the fields the MCP specification defines, so a vendor build stamp does not move it but a rewritten description does. See how we monitor, or this server's change history.

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