Safetyreplay MCP vs Semgrep
A side-by-side look at the Safetyreplay MCP and Semgrep MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Safetyreplay MCP for security work over a hosted endpoint; choose Semgrep for security as a local process. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Safetyreplay MCP when
- You need dedicated capabilities in the Security domain.
- You prefer a remote HTTP/SSE transport.
- Its auth model fits you: API key required.
- You want tools like
run_safety_replay, check_policy_gate, record_eval_receipt.
Choose Semgrep when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Security | Security |
| Quality signal | 49/100 · Fair | 48/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Remote HTTP/SSE | Local subprocess (stdio) |
| Auth | API key required | No auth required |
| Pricing | Paid service | Free |
| Required env vars | None listed | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 17,253 |
| Directory activity | 2 views 0 installs 0 upvotes | 1 views 0 installs 0 upvotes |
| Tools | 5 | Not listed |
| Full listing | View Safetyreplay MCP | View Semgrep |
Tools & capabilities
Safetyreplay MCP tools 5
run_safety_replaycheck_policy_gaterecord_eval_receiptsuggest_control_fixexport_release_evidence
Semgrep tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Safetyreplay MCP
{
"mcpServers": {
"safetyreplay-mcp": {
"url": "https://safetyreplay.clauxel.com/mcp"
}
}
}
Semgrep
{
"mcpServers": {
"semgrep-semgrep": {
"command": "uvx",
"args": [
"semgrep"
]
}
}
}
Frequently asked questions
Safetyreplay MCP is categorized under Security and uses a remote HTTP/SSE transport. Semgrep belongs to Security and uses a local stdio subprocess. Pick Safetyreplay MCP for security work and Semgrep for security.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Safetyreplay MCP is listed as a paid service. Auth: api key required. Semgrep is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add safetyreplay-mcp and semgrep-semgrep as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Safetyreplay MCP has a quality signal of 49/100 (Fair) with 2 views, 0 installs and 0 GitHub stars. Semgrep has 48/100 (Fair) with 1 views, 0 installs and 17,253 GitHub stars.