crowdsec-mcp
A read-only MCP server that exposes CrowdSec decisions and alerts via the LAPI. Provides tools such as list_decisions, decisions_stream, list_alerts, and get_alert.
README
crowdsec-mcp
A read-only MCP server for CrowdSec, exposing decisions and alerts.
Tools
| name | endpoint | required secret |
|---|---|---|
list_decisions |
GET /v1/decisions |
bouncer key |
decisions_stream |
GET /v1/decisions/stream |
bouncer key |
list_alerts |
GET /v1/alerts |
machine login |
get_alert |
GET /v1/alerts/{id} |
machine login |
Credentials
We need two credential types:
- Decisions need only a bouncer API key (
cscli bouncers add <name>), which is inherently read-only. This alone is enough forlist_decisions/decisions_stream. - Alerts are only reachable with machine credentials (
cscli machines add), exchanged for a short-lived JWT. That credential is technically read-write on LAPI, so this server only ever issues GET requests (plus the login POST). The alert tools stay disabled unless machine credentials are configured.
Configuration (environment variables)
| name | default | use |
|---|---|---|
CROWDSEC_LAPI_URL |
http://localhost:8080 |
LAPI base URL |
CROWDSEC_BOUNCER_KEY |
— | bouncer API key (enables decision tools) |
CROWDSEC_MACHINE_ID |
— | machine id (enables alert tools) |
CROWDSEC_MACHINE_PASSWORD |
— | machine password |
CROWDSEC_VERIFY_TLS |
true |
set false to skip TLS verification |
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