io.studiomeyer/armor
mcp-armor
Is the mcp-armor MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-02.
Security sidecar for MCP servers: 11 read-only control-plane tools for prompt-injection checks.
alive probed 2026-11-15 · unchanged since 2026-11-02
11tools
≈ 947tokens, estimate
≈ 0.5 %of Claude's 200k window
0.7×the median server
414 msto initialize
1 msto list tools
- Run it
- docker run -i --rm ghcr.io/studiomeyer-io/mcp-armor:0.8.2 (stdio, probed in a container with the network off)
- Host
- ghcr.io
- Reports itself as
- mcp-armor-control 0.8.2
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- ≈ <0.1 % of a 1M context window, estimate
- Claude count
- The count_tokens endpoint refused the tool schemas: tools.6.custom.input_schema: input_schema does not support oneOf, allOf, or anyOf at the top level. The estimate stands in.
- Repository
- https://github.com/studiomeyer-io/mcp-armor
- Registry
- active, updated 2026-11-01 · registry entry
- Changes
- 2 recorded, reachable in 2 of them. A row is added when the result, the tool count or the cost changes.
Most expensive tools
Estimates with the o200k_base tokenizer.
| Tool | o200k estimate | Share of this server |
|---|---|---|
| armor_scan_tools_list | 161 | 17 % |
| armor_get_drift_history | 137 | 14 % |
| armor_simulate_attack | 104 | 11 % |
| armor_rekor_lookup | 97 | 10 % |
| armor_verify_manifest | 87 | 9 % |
Compare this server with others.
More servers
Other registry entries on ghcr.io.
- Netra io.github.zyvorai/netra · alive
- Paqtra io.github.zyvorai/paqtra · alive
- Vytrix io.github.zyvorai/vytrix · crashed on start
- mockd io.mockd/mockd · timeout
- Gerrit Code Review team.gaijin/go-gerrit-mcp · needs env
Servers that mention armor.
- AnomalyArmor ai.anomalyarmor/armor-mcp · needs auth
- SkinGrind com.skingrind/skingrind · alive
- PGP armor fence check, key discarded io.github.sadri-dridi/pgp-armor-ok · alive
- Outtake Flash ai.outtake/flash · needs auth
- com.mcparmory/linkup · alive
- com.mcparmory/miro · alive
- com.mcparmory/algolia-search · alive
- com.mcparmory/apollo · alive
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-11-02 08:27 | alive | 170 ms | 11 | 947 | |
| 2026-10-27 07:02 | alive | 414 ms | 11 | 1.7k | 880 |
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The Anthropic count_tokens endpoint refused the tool schemas (tools.6.custom.input_schema: input_schema does not support oneOf, allOf, or anyOf at the top level). A client that validates schemas can refuse them too.