MCP Server Directory

PCAuth required Prompt-cache prefix guardian com.textforagents/prompt-cache-prefix-guardian Cache-bust forensics + TTL-fit verdicts: names the field that busts your prompt cache. 132 ms latency— 24h streamable-http1d ago POperational Promptcelerator com.promptcelerator/video-prompts Find AI video prompts that really worked, each with its video and its credited creator. Free. 197 ms latency— 24h streamable-http6d ago POperational PromptDNA org.promptdna/promptdna Community library of composable AI prompt blocks for search, composition, and contribution. 273 ms latency— 24h streamable-http1d ago PAuth required promptev ai.promptev/promptev Sovereign AI agents for business: answers from company data, each person's permissions, approvals. 74 ms latency— 24h streamable-http14h ago PAuth required PromptFax app.promptfax/promptfax Send a one-off fax from inside ChatGPT or Claude. Pay-per-use, $2-$4.50 per delivered fax. 88 ms latency— 24h streamable-http1d ago P—Operational PromptFiling — UK company deadlines uk.co.promptfiling/deadlines Free Companies House deadline checks for UK companies: due dates, penalties, dormancy signals. 934 ms latency— 24h streamable-http1d ago POperational PromptFrenzy com.promptfrenzy/promptfrenzy Find a tested AI image or video prompt — toy, LEGO, plushie, portrait, poster — and render it. 688 ms latency100% 24h streamable-http23h ago POperational PromptGuard co.promptguard/security Scan prompts for injection attacks, redact PII, and audit LLM SDK usage from any MCP client 168 ms latency— 24h streamable-http4d ago PGOperational prompt-guard-mcp io.github.robertoyanguas-ops/prompt-guard-mcp Scans untrusted web pages, emails, or tool outputs for prompt injections and returns sanitized tex 73 ms latency— 24h streamable-http1d ago PGOperational PromptingCraft Guidance com.promptingcraft/guidance Source-backed prompting and coding-agent guidance with provenance and freshness checks. 238 ms latency— 24h streamable-http4d ago PAuth required PromptOT com.promptot/mcp Manage, version, and publish LLM prompts with blocks, variables, and evaluations. 211 ms latency— 24h streamable-http23h ago PDown PromptScan io.github.corporatelad/promptscan Prompt injection detection API for AI agents. Scan untrusted text before passing it to an LLM. 245 ms latency0% 24h streamable-http16h ago POperational promptsharp ai.promptsharp/promptsharp Professional prompt library over remote MCP: 13 verticals, free discovery scope. 269 ms latency— 24h streamable-http2d ago POperational PromptSpend io.github.AndrewAvery7/promptspend LLM pricing where every rate carries its source and the date it was last confirmed. 132 ms latency— 24h streamable-http3d ago PAuth required Promvia app.promvia/promvia AI search visibility: where ChatGPT, Perplexity, Gemini and Google AI cite you. OAuth sign-in. 298 ms latency— 24h streamable-http2d ago PAuth required Pronoic net.pronoic/pronoic Your AI assistant finds the right people: consent-based agent-to-agent introductions. Private beta. 271 ms latency— 24h streamable-http4d ago PSOperational Pronova Site Audit com.pronovatx/site-audit Free instant website audit: technical SEO, Core Web Vitals, and indexing checks. 782 ms latency100% 24h streamable-http11h ago PAuth required Pronto io.github.eabnelson/pronto Use your Pronto feed, Spaces, Posts, Artifacts, and agents from any MCP client. 274 ms latency— 24h streamable-http3d ago POperational prontofax com.prontofax/prontofax Verified US government fax numbers and send a fax from the chat. No account, $2.99 on delivery. 412 ms latency— 24h streamable-http5d ago PSOperational pronto-stream io.github.nmxmxh/pronto-stream Real-time planetary signal engine and Model Context Protocol (MCP) server for autonomous AI agents. 548 ms latency100% 24h streamable-http11h ago PHOperational Proof Holdings holdings.proof/mcp-server One API, all things verified — control, delegation, human approval, anti-impersonation. 2164 ms latency100% 24h streamable-http19h ago POOperational Proof of Type Input com.proofoftype/input Add a text box that proves a human typed it, not AI. Code for any framework; verify proof tokens. 458 ms latency— 24h streamable-http1d ago PMAuth required Proofable MCP io.github.proofable/mcp Context and control for any AI. Agent identity, scoped access, and proof across tools. 198 ms latency— 24h streamable-http5d ago POperational ProofCheck io.github.something-agent/proofcheck Free x402 offer/receipt checker: verifies signatures and whether the signer fits the host. 216 ms latency— 24h streamable-http5d ago