ntfy
Publish ntfy notifications, read the message cache, and manage users and topic access
The current version, v0.3.0, was published to the official MCP registry on 2026-09-07. It is distributed as @ni-c/ntfy-mcp on npm and as the Docker image ghcr.io/ni-c/ntfy-mcp:0.3.0, filed under Other by this index, and declares 9 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.
Using ntfy in Claude, Cursor, Gemini CLI, Cline, or Zed?
MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).
Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less
uv tool install mcpindex-gate && mcpindex-config-wireSemantic screen found no manipulation pattern in the description. Conformance probe not yet run.
mcpindex.integrity.descriptionpassINFOevidence“Normal capability description”via static_description
- - Semantic screen only - the deterministic conformance probe has not run on this server
- - Confidence is reported but not yet calibrated (v1)
- - Screen reads the tool description, not the live behavior
- - advisory
- - registry description only no input schema
- - screen model 8b
- - Still current: the description we screened is unchanged, re-checked against the registry
- - The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not
Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.
Own this server? Test a description on the public screen → It is a separate check from the verdict above, so the two can differ.
That verdict was true at screening time (snapshot 2026-10-19).
Contracts can change after screening, with no version bump. The gate pins ntfy’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.
See your first HOLD in 2 minutes →
Related: how to trust an MCP server · screen before install · silent contract drift
People vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.
[Independent trust record for ntfy](https://mcpindex.ai/server/io-github-ni-c-ntfy-mcp) - screening verdict, registry provenance, and contract drift monitoring.<a href="https://mcpindex.ai/server/io-github-ni-c-ntfy-mcp">Independent trust record for ntfy</a> - screening verdict, registry provenance, and contract drift monitoring.A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.
[](https://mcpindex.ai/server/io-github-ni-c-ntfy-mcp)<a href="https://mcpindex.ai/server/io-github-ni-c-ntfy-mcp"><img src="https://mcpindex.ai/api/v1/badge/io-github-ni-c-ntfy-mcp" alt="mcpindex verdict" height="20" /></a>NTFY_URLBase URL of the ntfy server, e.g. https://ntfy.example.net. There is deliberately no default.
NTFY_TOKENntfy access token (tk_...). Optional: an open instance needs no credentials. Mutually exclusive with NTFY_USERNAME/NTFY_PASSWORD.
NTFY_USERNAMEUsername for basic authentication. Must be set together with NTFY_PASSWORD.
NTFY_PASSWORDPassword for basic authentication. Must be set together with NTFY_USERNAME.
NTFY_TOPICSComma-separated topics the server may use. The first is the default when a tool omits one, and the list restricts every read and write tool.
NTFY_READ_ONLYSet to exactly true to register only the six read tools (default: false — ntfy exists to publish)
NTFY_INSECURE_TLSSet to true to accept a self-signed certificate from the ntfy server (default: false)
NTFY_ALLOW_TOOLSComma-separated tool names or list_* prefixes to register; 'essential' selects a curated preset (default: all tools)
NTFY_DENY_TOOLSComma-separated tool names or list_* prefixes to remove from whatever the allow list left
NTFY_URLBase URL of the ntfy server, e.g. https://ntfy.example.net. There is deliberately no default.
NTFY_TOKENntfy access token (tk_...). Optional: an open instance needs no credentials. Mutually exclusive with NTFY_USERNAME/NTFY_PASSWORD.
NTFY_USERNAMEUsername for basic authentication. Must be set together with NTFY_PASSWORD.
NTFY_PASSWORDPassword for basic authentication. Must be set together with NTFY_USERNAME.
NTFY_TOPICSComma-separated topics the server may use. The first is the default when a tool omits one, and the list restricts every read and write tool.
NTFY_READ_ONLYSet to exactly true to register only the six read tools (default: false — ntfy exists to publish)
NTFY_INSECURE_TLSSet to true to accept a self-signed certificate from the ntfy server (default: false)
NTFY_ALLOW_TOOLSComma-separated tool names or list_* prefixes to register; 'essential' selects a curated preset (default: all tools)
NTFY_DENY_TOOLSComma-separated tool names or list_* prefixes to remove from whatever the allow list left
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