Agent Security Scanner MCP vs Pulsefeed X402

A side-by-side look at the Agent Security Scanner MCP and Pulsefeed X402 MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Agent Security Scanner MCP logoAgent Security Scanner MCPSecurity · Local subprocess (stdio)Security layer for AI agents: blocks prompt injection, detects fake packages, scans vulnerabilities.68GreatAuth: not declaredPulsefeed X402 logoPulsefeed X402Security · Local subprocess (stdio)Trust & safety layer for x402 agent payments: before your agent pays an x402 endpoint, verify it is safe — liveness, scam/anomaly scan (payTo hijack, bait-and-switch, honeypot), and on-chain receiver verification. 70% of x402 endpoints are dead or scams; only half of "healthy" listings work. Free /verify + an open Trust Score. npx -y pulsefeed-x402-mcp63GoodAuth: no auth required

Verdict: choose Agent Security Scanner MCP for security work as a local process; choose Pulsefeed X402 for security as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Agent Security Scanner MCP logoChoose Agent Security Scanner MCP when

  • You need dedicated capabilities in the Security domain.
  • You prefer a local stdio subprocess transport.
  • You want tools like scan_security, fix_security, record_security_outcome.
Explore Agent Security Scanner MCP

Pulsefeed X402 logoChoose Pulsefeed X402 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 want tools like x402_working_services, check_x402_endpoint, pulsefeed_products.
Explore Pulsefeed X402

Feature & specification comparison

Rows where the two servers differ are marked.

SpecAgent Security Scanner MCP logoAgent Security Scanner MCPPulsefeed X402 logoPulsefeed X402
CategorySecuritySecurity
Quality signal68/100 · Great63/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNo auth required
PricingNot declaredFree
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars1240
Directory activity 2 views 0 installs 0 upvotes 4 views 0 installs 0 upvotes
Tools233

Tools & capabilities

Agent Security Scanner MCP tools 23

  • scan_securityScan a file for security vulnerabilities. Use verbosity='minimal' for counts only (~50 tokens), 'compact' (default) for actionable info (~200 tokens), 'full' for complete metadata.
  • fix_securityScan a file and return fixes. Use verbosity='minimal' for summary only, 'compact' (default) for fix list, 'full' for complete fixed file content.
  • record_security_outcomeRecord aggregate remediation outcomes after reviewing scanner findings. Sends counts only; never sends code, findings, paths, or rule IDs.
  • list_security_rulesList all available security fix templates and their descriptions
  • check_packageCheck if a package name is legitimate or potentially hallucinated (AI-invented)
  • scan_packagesScan code for package imports and check for hallucinated (AI-invented) packages. Use verbosity='minimal' for counts, 'compact' (default) for flagged packages, 'full' for all details.
  • list_package_statsList statistics about loaded package lists for hallucination detection
  • scan_agent_promptScan a prompt for malicious intent. Returns BLOCK/WARN/LOG/ALLOW. Use verbosity='minimal' for action only, 'compact' (default) for findings, 'full' for audit details.
  • scan_git_diffScan git diff for new security vulnerabilities. Only reports issues on changed lines. Use for PR reviews.
  • scan_projectScan an entire directory for security vulnerabilities with .gitignore support and security grading. Use verbosity='minimal' for grade + counts, 'compact' (default) for top issues, 'full' for all details.
  • scan_agent_actionPre-execution security check for agent actions (bash, file_write, file_read, http_request, file_delete, cron, process_spawn, git, docker). Returns ALLOW/WARN/BLOCK.
  • scan_mcp_serverScan an MCP server's source code for security vulnerabilities: overly broad permissions, missing input validation, data exfiltration, insecure patterns. Returns grade (A-F) and recommendations.
  • +11 more on the listing page

Pulsefeed X402 tools 3

  • x402_working_servicesList x402 agent-payment services that are currently ALIVE and return a valid x402 challenge, ranked by trust score. About 85% of x402 endpoints are dead or invalid — use this to avoid paying broken or scam endpoints. Free.
  • check_x402_endpointBefore paying an unknown x402 endpoint, check whether it is live and returns a valid x402 payment challenge. Returns liveness, price, network and a pay/avoid verdict. For full uptime + reputation, use PulseFeed's paid /trust API.
  • pulsefeed_productsList PulseFeed's paid x402 products — real-time Base on-chain intelligence for AI agents: token pulse, whale alerts, smart-money accumulation/distribution, momentum, and the x402 trust oracle — and how to pay via x402.

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.

Agent Security Scanner MCP

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "agent-security-scanner-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "agent-security-scanner-mcp"
      ]
    }
  }
}

Pulsefeed X402

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "nikolife2016-pulsefeed-x402": {
      "command": "npx",
      "args": [
        "-y",
        "pulsefeed-x402-mcp"
      ]
    }
  }
}

Frequently asked questions

Agent Security Scanner MCP is categorized under Security and uses a local stdio subprocess. Pulsefeed X402 belongs to Security and uses a local stdio subprocess. Pick Agent Security Scanner MCP for security work and Pulsefeed X402 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.

Agent Security Scanner MCP has no declared pricing — check the project's own site. Pulsefeed X402 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 agent-security-scanner-mcp and nikolife2016-pulsefeed-x402 as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Agent Security Scanner MCP has a quality signal of 68/100 (Great) with 2 views, 0 installs and 124 GitHub stars. Pulsefeed X402 has 63/100 (Good) with 4 views, 0 installs and 0 GitHub stars.