Drop-in Rust sidecar for MCP servers — scans tool calls for prompt injection, validates Ed25519 manifest signatures, blocks marketplace-poisoning vectors. <5ms p99 overhead. Defense against OX Security MCP advisory (10+ CVEs, April 2026).
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add armor -- docker run -i --rm ghcr.io/studiomeyer-io/mcp-armor:0.8.1~/.codex/config.toml
[mcp_servers.armor]
command = "docker"
args = ["run", "-i", "--rm", "ghcr.io/studiomeyer-io/mcp-armor:0.8.1"]
# codex mcp add armor -- docker run -i --rm ghcr.io/studiomeyer-io/mcp-armor:0.8.1~/.cursor/mcp.json
{
"mcpServers": {
"armor": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/studiomeyer-io/mcp-armor:0.8.1"
]
}
}
}.vscode/mcp.json
{
"servers": {
"armor": {
"type": "stdio",
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/studiomeyer-io/mcp-armor:0.8.1"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"armor": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/studiomeyer-io/mcp-armor:0.8.1"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"armor": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/studiomeyer-io/mcp-armor:0.8.1"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"armor": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/studiomeyer-io/mcp-armor:0.8.1"
]
}
}
}