Cyberchef MCP vs OPNSenseMCP
A side-by-side look at the Cyberchef MCP and OPNSenseMCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Cyberchef MCP for security work as a local process; choose OPNSenseMCP 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 Cyberchef MCP when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
CYBERCHEF_OFFLINE, CYBERCHEF_AUTH_ISSUER, CYBERCHEF_TENANT_CLAIM. - You want tools like
cyberchef_batch, cyberchef_telemetry_export, cyberchef_quota_info.
Choose OPNSenseMCP when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
OPNSENSE_HOST, OPNSENSE_API_KEY, OPNSENSE_API_SECRET, OPNSENSE_VERIFY_SSL. - You want tools like
firewall_list_rules, firewall_create_rule, firewall_update_rule.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Security | Security |
| Quality signal | 59/100 · Good | 64/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | Not declared | API key required |
| Pricing | Not declared | Free |
| Required env vars | CYBERCHEF_OFFLINECYBERCHEF_AUTH_ISSUERCYBERCHEF_TENANT_CLAIM | OPNSENSE_HOSTOPNSENSE_API_KEYOPNSENSE_API_SECRETOPNSENSE_VERIFY_SSL |
| Verified owner | Community listing | Community listing |
| GitHub stars | 26 | 90 |
| Directory activity | 1 views 0 installs 0 upvotes | 5 views 0 installs 0 upvotes |
| Tools | 4 | 18 |
| Full listing | View Cyberchef MCP | View OPNSenseMCP |
Tools & capabilities
Cyberchef MCP tools 4
cyberchef_batchExecute multiple operations in parallel or sequential modecyberchef_telemetry_exportPrivacy-first usage analytics (opt-in)cyberchef_quota_infoResource quota and usage trackingcyberchef_worker_statsMonitor worker pool utilization, active/completed tasks, and pool configuration
OPNSenseMCP tools 18
firewall_list_rulesList all firewall rulesfirewall_create_ruleCreate a new rulefirewall_update_ruleUpdate existing rulefirewall_delete_ruleDelete a rulefirewall_apply_changesApply pending changesnat_list_outboundList outbound NAT rulesnat_set_modeSet NAT modenat_create_outbound_ruleCreate NAT rulenat_fix_dmzFix DMZ NAT issuesnat_analyze_configAnalyze NAT configurationarp_listList ARP table entriesrouting_diagnosticsDiagnose routing issues- +6 more on 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.
Cyberchef MCP
{
"mcpServers": {
"cyberchef-mcp": {
"command": "npx",
"args": [
"-y",
"cyberchef-mcp"
],
"env": {
"CYBERCHEF_OFFLINE": "YOUR_CYBERCHEF_OFFLINE_HERE",
"CYBERCHEF_AUTH_ISSUER": "YOUR_CYBERCHEF_AUTH_ISSUER_HERE",
"CYBERCHEF_TENANT_CLAIM": "YOUR_CYBERCHEF_TENANT_CLAIM_HERE"
}
}
}
}
OPNSenseMCP
{
"mcpServers": {
"vespo92-opnsensemcp": {
"command": "npx",
"args": [
"-y",
"opnsense-mcp-server"
],
"env": {
"OPNSENSE_HOST": "YOUR_OPNSENSE_HOST_HERE",
"OPNSENSE_API_KEY": "YOUR_OPNSENSE_API_KEY_HERE",
"OPNSENSE_API_SECRET": "YOUR_OPNSENSE_API_SECRET_HERE",
"OPNSENSE_VERIFY_SSL": "YOUR_OPNSENSE_VERIFY_SSL_HERE"
}
}
}
}
Frequently asked questions
Cyberchef MCP is categorized under Security and uses a local stdio subprocess. OPNSenseMCP belongs to Security and uses a local stdio subprocess. Pick Cyberchef MCP for security work and OPNSenseMCP 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.
Cyberchef MCP has no declared pricing — check the project's own site. OPNSenseMCP is listed as free. Auth: api key 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 cyberchef-mcp and vespo92-opnsensemcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Cyberchef MCP has a quality signal of 59/100 (Good) with 1 views, 0 installs and 26 GitHub stars. OPNSenseMCP has 64/100 (Good) with 5 views, 0 installs and 90 GitHub stars.