Shieldly IO MCP vs OPNSenseMCP
A side-by-side look at the Shieldly IO 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 Shieldly IO 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 Shieldly IO MCP when
- You need dedicated capabilities in the Security domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: No auth required.
- You have the keys it needs:
SHIELDLY_API_KEY. - You want tools like
analyze_iam_policy, analyze_cloudformation_template.
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 | 57/100 · Good | 64/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | API key required |
| Pricing | Freemium | Free |
| Required env vars | SHIELDLY_API_KEY | OPNSENSE_HOSTOPNSENSE_API_KEYOPNSENSE_API_SECRETOPNSENSE_VERIFY_SSL |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | 90 |
| Directory activity | 2 views 0 installs 0 upvotes | 5 views 0 installs 0 upvotes |
| Tools | 2 | 18 |
| Full listing | View Shieldly IO MCP | View OPNSenseMCP |
Tools & capabilities
Shieldly IO MCP tools 2
analyze_iam_policyAI-Powered security analysis of an AWS IAM policy (identity policy or cross-account trust+identity pair). Flags privilege-escalation paths, wildcards, and other over-permissive access. Runs in demo mode (rate-limited, no signup) if SHIELDLY_API_KEY is not set.analyze_cloudformation_templateAI-Powered security analysis of a CloudFormation template — extracts IAM roles/policies and flags over-permissive access. Runs in demo mode (rate-limited, no signup) if SHIELDLY_API_KEY is not set.
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.
Shieldly IO MCP
{
"mcpServers": {
"shieldly-io-mcp": {
"command": "npx",
"args": [
"-y",
"@shieldly/mcp"
],
"env": {
"SHIELDLY_API_KEY": "YOUR_SHIELDLY_API_KEY_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
Shieldly IO MCP is categorized under Security and uses a local stdio subprocess. OPNSenseMCP belongs to Security and uses a local stdio subprocess. Pick Shieldly IO 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.
Shieldly IO MCP is listed as freemium — a free tier with paid plans. Auth: no auth required. 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 shieldly-io-mcp and vespo92-opnsensemcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Shieldly IO MCP has a quality signal of 57/100 (Good) with 2 views, 0 installs and 0 GitHub stars. OPNSenseMCP has 64/100 (Good) with 5 views, 0 installs and 90 GitHub stars.