Dcl Webhook vs Shodan

A side-by-side look at the Dcl Webhook and Shodan MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Dcl Webhook logoDcl WebhookSecurity · Remote HTTP/SSEDeterministic AI audit layer: evaluates LLM/agent outputs against configurable policies (jailbreak, safety, quality, wallet, trade, MEV compliance) and writes every verdict to a tamper-evident SHA-256 hash chain — metadata only, never raw content. 17 tools including a full crypto-trading compliance suite. Pay-per-call via x402 (USDC on Base), from $0.01. mcp.fronesislabs.com/mcp59GoodAuth: not declaredShodan logoShodanSecurity · Local subprocess (stdio)MCP server for Shodan API — device search, IP lookup, DNS, and CVE/CPE queries.68GreatAuth: not declared

Verdict: choose Dcl Webhook for security work over a hosted endpoint; choose Shodan for security as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Dcl Webhook logoChoose Dcl Webhook when

  • You need dedicated capabilities in the Security domain.
  • You prefer a remote HTTP/SSE transport.
  • You want tools like dcl_evaluate_fast, dcl_evaluate_strict, dcl_evaluate_jailbreak.
Explore Dcl Webhook

Shodan logoChoose Shodan when

  • You need dedicated capabilities in the Security domain.
  • You prefer a local stdio subprocess transport.
  • You have the keys it needs: SHODAN_API_KEY.
  • You want tools like ip_lookup, shodan_search, cve_lookup.
Explore Shodan

Feature & specification comparison

Rows where the two servers differ are marked.

SpecDcl Webhook logoDcl WebhookShodan logoShodan
CategorySecuritySecurity
Quality signal59/100 · Good68/100 · Great
Install commandConfirmedConfirmed
TransportRemote HTTP/SSELocal subprocess (stdio)
AuthNot declaredNot declared
PricingNot declaredNot declared
Required env varsNone listedSHODAN_API_KEY
Verified ownerCommunity listingCommunity listing
GitHub stars1179
Directory activity 0 views 0 installs 0 upvotes 1 views 0 installs 0 upvotes
Tools1811

Tools & capabilities

Dcl Webhook tools 18

  • dcl_evaluate_fastFAST Pre-Action Audit ($0.01). Runs the response through the server's "default" policy: a substring check against 3 forbidden phrases ("ignore previous instructions", "jailbreak", "bypass safety") with a 0.7 minimum-confidence threshold. Each forbidden match found costs 0.4 confidence; if confidence falls below 0.7, or any match is found, the verdict is NO_COMMIT and `reason` lists which phrase triggered it. Otherwise COMMIT. Use this as the default low-cost first-pass gate before a risky agent action; switch to dcl_evaluate_strict for a broader, higher-bar check, or to dcl_evaluate_jailbreak / dcl_evaluate_safety / dcl_evaluate_quality for a narrower, single-topic check instead of the general-purpose default policy.
  • dcl_evaluate_strictSTRICT Pre-Action Audit ($0.05). Runs the response against a broader, higher-bar "strict" policy: the union of all forbidden phrases from the default, anti-jailbreak, and safety policies (8 phrases total), with a 0.85 minimum-confidence threshold instead of the default policy's 0.7. Each matched phrase costs 0.4 confidence; if confidence falls below 0.85, or any phrase matches, the verdict is NO_COMMIT with `reason` listing every match found. Use this instead of dcl_evaluate_fast when the cost of a false COMMIT is high — e.g. before an irreversible or high-stakes agent action — since it catches jailbreak- and safety-adjacent phrasing that the plain default policy would miss.
  • dcl_evaluate_jailbreakPRE-ACTION Instruction Adherence Check ($0.02). Runs the "anti_jailbreak" policy: a substring check against 6 forbidden phrases ("ignore previous instructions", "jailbreak", "bypass safety", "pretend you are", "act as if", "DAN") with a 0.8 minimum-confidence threshold — each match costs 0.4 confidence. Returns COMMIT if no phrase matches and confidence stays at or above 0.8, otherwise NO_COMMIT with `reason` listing the matched phrase(s). Use this as a targeted, cheaper check when the concern is specifically prompt-injection / persona-hijack risk; use dcl_evaluate_strict instead when you also want safety- and default-policy phrases covered in the same call.
  • dcl_evaluate_safetyPRE-ACTION Baseline Safety Check ($0.01). Runs the "safety" policy: flags 2 forbidden disclaimers ("I cannot be held responsible", "no guarantees") and additionally REQUIRES the substring "AI" to appear somewhere in the response — missing it costs 0.2 confidence even with no forbidden phrase present. Minimum confidence is 0.75. Returns NO_COMMIT if confidence drops below 0.75, with `reason` naming the forbidden phrase found or the missing required pattern. Use this when you specifically need to confirm an AI-disclosure marker is present and the two disclaimer phrases are absent — not as a general-purpose safety net; for broader coverage use dcl_evaluate_fast or dcl_evaluate_strict instead.
  • dcl_evaluate_qualityPRE-ACTION Content Quality & Drift Check ($0.03). Runs the "content_quality" policy: flags 12 absolutist or unverifiable-claim phrases (e.g. "guaranteed returns", "100% accurate", "studies show", "without a doubt") with a 0.85 minimum-confidence threshold — the highest bar of any single-policy tool. Returns NO_COMMIT if any phrase matches or confidence falls below 0.85, with `reason` listing the matched phrase(s). Use this to catch overconfident or unsubstantiated claims in generated content — a different concern from jailbreak or safety phrasing — e.g. before publishing agent-written copy or reports.
  • dcl_evaluate_secretsPOST-ACTION Secret & Credential Leak Scan ($0.02). Regex-based scan across 8 categories (API keys, cloud credentials, tokens/JWTs, private keys, DB URLs, connection strings, env assignments, webhook secrets, internal endpoints with auth). Any finding results in NO_COMMIT.
  • dcl_evaluate_piiPOST-ACTION PII Detection Scan ($0.02). Regex-based scan across 8 personal-data categories, with a Luhn checksum on card numbers to reduce false positives. Any finding results in NO_COMMIT.
  • dcl_evaluate_batchPRE-ACTION Bulk Processing ($0.10). Evaluates a list of items in one call; each item is a dict shaped {"response": str, "policy"?: str}, where policy defaults to "default" if omitted and may be any built-in policy name (default, strict, anti_jailbreak, safety, content_quality). Each item gets its own independent COMMIT/NO_COMMIT verdict via the same logic as the matching single-item evaluate_* tool; results are returned in input order under `results`, plus a shared `batch_id`. Capped at 200 items per call — oversized batches are rejected. Use this instead of multiple single-item evaluate_* calls when checking several responses — optionally against different policies — in one priced call rather than paying per item separately.
  • dcl_pipeline_startSESSION Management ($0.05). Generates a new `pipeline_id` and returns session metadata (scope, expiry, initial drift_mode) for organizing a series of related checks under one identifier. Note: this call does not currently link the returned pipeline_id to later evaluate_* calls — there is no server-side session state that ties subsequent audits back to it; it is an identifier/timestamp issuer, not an active tracking session. Use this to obtain a shared reference ID for your own client-side grouping of a multi-step audit sequence; do not rely on it to automatically aggregate drift across calls.
  • dcl_audit_decodePOST-ACTION Basic Audit ($0.10). Retrieves a record from the tamper-evident chain by tx_hash.
  • dcl_audit_decode_deepPOST-ACTION Deep Forensic Audit ($0.50). Extended output with drift_context and full chain integrity verification.
  • dcl_evaluate_jailbreak_cryptoPRE-ACTION Crypto Jailbreak & Injection Detection ($0.02). Crypto-specialized instruction-override/jailbreak/injection screen: standard role-switch and instruction-override patterns, plus crypto-specific drain-wallet injection (e.g. "transfer all funds to...", fake "test transaction" requesting full balance) and unlimited-approval injection (e.g. type(uint256).max, "approve unlimited allowance", skip-slippage-confirmation framing). Any match returns NO_COMMIT with `reason` and `findings` naming the matched category/categories; run this FIRST in the DCL crypto pipeline, before wallet/trade/MEV checks, since it screens the input itself rather than a decision built on top of it.
  • +6 more on the listing page

Shodan tools 11

  • ip_lookupRetrieve comprehensive information about an IP address, including geolocation, operating system, open ports, running services (product, version, CPE), known vulnerabilities (CVEs), SSL certificates, hostnames, and cloud provider details if available. Returns service banners and HTTP server information when present. Optional history returns historical banners; minify omits banners.
  • shodan_searchSearch Shodan's database of internet-connected devices. Returns detailed information about matching devices including services, vulnerabilities, and geographic distribution. Supports advanced search filters and returns facet statistics (default: by country). Costs 1 query credit when the query uses filters, plus 1 per page beyond the first. Use shodan_count (free) to get totals and facets without results.
  • cve_lookupQuery detailed vulnerability information from Shodan's CVEDB. Returns comprehensive CVE details including CVSS scores (v4/v3/v2), EPSS probability and ranking, KEV status, proposed mitigations, ransomware associations, and affected products (CPEs).
  • dns_lookupResolve domain names to IP addresses using Shodan's DNS service. Supports batch resolution of multiple hostnames in a single query. Returns IP addresses mapped to their corresponding hostnames.
  • reverse_dns_lookupPerform reverse DNS lookups to find hostnames associated with IP addresses. Supports batch lookups of multiple IP addresses in a single query. Returns all known hostnames for each IP address, with clear indication when no hostnames are found.
  • cpe_lookupSearch for Common Platform Enumeration (CPE) entries by product name in Shodan's CVEDB. Supports pagination and can return either full CPE details or just the total count. Useful for identifying specific versions and configurations of software and hardware.
  • cves_by_productSearch for vulnerabilities affecting specific products or CPEs. Supports filtering by KEV status, sorting by EPSS score, date ranges, and pagination. Can search by product name or CPE 2.3 identifier. Returns detailed vulnerability information including severity scores and impact assessments.
  • shodan_countGet the total number of Shodan results for a query, with optional facet breakdowns (e.g. by country, org, port). Free: does not consume query credits. Use search_filters to list valid filters and facets.
  • domain_infoGet subdomains and DNS records for a domain from Shodan. Costs 1 query credit per lookup.
  • api_infoShow the Shodan API plan, remaining query and scan credits, monitored IPs, and usage limits for the configured API key. Free: does not consume credits.
  • search_filtersList the search filters and facets Shodan supports. Use this to build valid shodan_search and shodan_count queries and facets. Free: does not consume credits.

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.

Dcl Webhook

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "fronesis-labs-dcl-webhook": {
      "url": "https://mcp.fronesislabs.com/mcp"
    }
  }
}

Shodan

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "shodan-2": {
      "command": "npx",
      "args": [
        "-y",
        "@burtthecoder/mcp-shodan"
      ],
      "env": {
        "SHODAN_API_KEY": "YOUR_SHODAN_API_KEY_HERE"
      }
    }
  }
}

Frequently asked questions

Dcl Webhook is categorized under Security and uses a remote HTTP/SSE transport. Shodan belongs to Security and uses a local stdio subprocess. Pick Dcl Webhook for security work and Shodan 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.

Dcl Webhook has no declared pricing — check the project's own site. Shodan has no declared pricing — check the project's own site. 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 fronesis-labs-dcl-webhook and shodan-2 as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Dcl Webhook has a quality signal of 59/100 (Good) with 0 views, 0 installs and 1 GitHub stars. Shodan has 68/100 (Great) with 1 views, 0 installs and 179 GitHub stars.