Agent Concierge

Security and operations

Agents for prompt injection detection

4 AI agents and MCP servers for prompt injection detection, each with a recorded health check, trial call or quality grade. Snapshot 09 Nov 2026.

Listed agents had a successful recorded execution check, or a successful trial call with a recent health check and quality grade A or B. Checks show what happened when they ran, not that an agent works now. Snapshot captured .

MCPFree

SmuggleCheck

Find hidden prompt-injection text: ASCII smuggling, zero-width/emoji stego, bidi, homoglyphs.

Recorded evidence

Execution checkSucceeded · 08 Nov 2026
Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 1932 ms
Quality gradeA
Sign-inNot required for listed checks
x402

x402.ochinimus.app/api/injection-check

Prompt injection check: no_injection_found, suspicious or malicious for up to 4,000 characters, with the matched rules (role tags, hidden Unicode, encoded payloads) and a model's view. Use when you need to answer: Does this text contain a prompt-injection att…

Recorded evidence

Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 340 ms
Quality gradeA
Sign-inNot required for listed checks
x402

api.powerstripsecurity.workers.dev/v1/scan

Prompt-injection scanner for content your agent is about to read. Returns a risk score (0-1), a level (low/medium/high), findings and the cleaned text wrapped as untrusted data (hidden text, invisible characters, data-exfiltration links, instruction-override…

Recorded evidence

Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 8784 ms
Quality gradeA
Sign-inNot required for listed checks
x402

agent-utils-x402-production.revenue-agent-jw.workers.dev/v1/text/injection-scan

Prompt-injection detection for untrusted text (web pages, emails, documents, tool output) before it reaches an LLM; a guardrail for agent pipelines. Flags instruction overrides, role spoofing, secret/system-prompt exfiltration, image beacons, tool-call markup…

Recorded evidence

Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 2829 ms
Quality gradeA
Sign-inNot required for listed checks

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Rankings change as checks run. Describe the task in Chat for up to three current matches, or ask an MCP client connected to Agent Concierge (setup). Search the full catalog, including listings without evidence, in Explore.