Self-hosted Semgrep MCP alternatives
Semgrep's server installs locally and runs from your editor, so scanning happens on a process you control and your source never has to leave the machine to be analyzed. Each pick here also runs self-hosted over stdio rather than as a managed endpoint.
Security teams care about this for a clear reason: a scanner reads your whole codebase, so keeping the process local matters. The same logic applies to the observability picks, which connect to your own clusters and credentials. Note that several still talk to a vendor's API once running; self-hosting controls the process, not always the data path.
The 8 best self-hosted alternatives
The direct peer, run locally: built into the Snyk CLI, it scans dependencies, code, containers, and IaC for vulnerabilities on your own machine, so source and scan results both stay local.
Set up Snyk →AWS Labs' server runs any AWS CLI command locally with validation and a read-only mode, letting an agent inspect cloud posture from a process you control. It checks the environment, not the source.
Set up AWS (AWS Labs) →Run against your own stack, Grafana queries dashboards, Prometheus, Loki, incidents, and alerts. It watches the running system rather than scanning code before deploy.
Set up Grafana →Sentry's server installs locally and pulls issues, stack traces, and events plus Seer root-cause analysis. It catches faults after release, the runtime complement to Semgrep's pre-ship scanning.
Set up Sentry →Pointed at your own Prometheus, this server runs PromQL instant and range queries, discovers metrics, and inspects scrape targets, all from a local process beside your monitoring stack.
Set up Prometheus →SigNoz runs self-hosted over its OpenTelemetry-native stack, giving traces, logs, metrics, dashboards, and alerts. It monitors behaviour in infrastructure you operate rather than analyzing source.
Set up SigNoz →PagerDuty's server runs locally and exposes incidents, services, schedules, and orchestrations across 64 tools, read-only by default. It manages response from a process on your own side.
Set up PagerDuty →- AzureOfficial
Microsoft ships the Azure server to run locally and manage 40+ services, storage, Key Vault, Cosmos DB, SQL, Monitor, AKS, and more, so an agent inspects cloud resources from infrastructure you control.
Set up Azure →
How to choose
All of these run on your own machine like Semgrep. Snyk is the one that does the same job, scanning source and dependencies locally, and adds container and IaC checks. AWS and Azure inspect cloud configuration, while Grafana, Sentry, Prometheus, SigNoz, and PagerDuty watch or respond to running systems. Self-hosting keeps the process local, but the observability and cloud servers still reach their respective APIs once running.
FAQ
- Can the Semgrep MCP server be self-hosted?
- Yes. It installs locally and runs from your editor, so the scan happens on a machine you control and your source is analyzed in place rather than uploaded. The AppSec Platform findings tool does query Semgrep's platform when you use it, but the scanning itself is local.
- Which self-hosted alternative actually scans code like Semgrep?
- Snyk. Running through the Snyk CLI on your own machine, it scans code and dependencies for vulnerabilities and extends to containers and IaC. The other self-hosted picks here monitor running systems or cloud resources, so they sit beside a scanner rather than replacing it.