MCP Server Directory

Whetstone link.cyberelf.whetstone/tools

Verifier-grounded AI promotion gates, disposable report cards, and signed PASS/HOLD/BLOCK receipts.

źlab Operational Decision Stress Test io.zircular/zlab-stress-test

Evidence-governed screening of material decisions about physical assets and operational systems.

parabol io.usefulapi/parabol

Start Parabol retrospectives, standups and sprint poker; read teams/meetings/tasks; create tasks.

knowledgeowl io.usefulapi/knowledgeowl

Read and write knowledge-base articles, categories, snippets, glossary, readers, and search data.

Vantio Gate — Policy Latch dry-run evaluate for agents. No live enforce from MCP.

Vantio Optics — read-only Sight Loop observe for agents. Proofs, hosts, upgrade path.

26 deterministic, offline pre-action safety gates for AI agents, each with a signed verdict.

MCP server for ISO 20022 postal-address remediation ahead of the Nov 2026 CBPR+ cliff.

MCP server: seal & sign ISO 20022 readiness evidence into tamper-evident audit packs.

Desvela ARD Registry — free preflight(domain) dev.desvela/registry

What a domain publishes for AI agents: ai-catalog.json, llms.txt, agents.md, robots.txt rules. Free.

Tankerkoenig io.github.pipeworx-io/tankerkoenig

Tankerkoenig MCP — German real-time fuel prices (Benzinpreise) for all

propzapi io.github.paperandbeyond23-gif/propzapi

Render-and-verify API: HTML/CSS to image or PDF, screenshot any URL, confirm the text rendered.

similarity-search-api-sdk io.github.nexus-mcp-infra/similarity-search-api-sdk

Stateless NMI + cosine fusion with entropy-driven alpha calibration

Search, play, and control Stremio on Android TV over native ADB.

PDF Redaction MCP com.pdf-redaction/pdf-redaction-mcp

MCP server for detecting and redacting PII (Personally Identifiable Information) in PDF documents.

Cellarion app.cellarion/cellarion

Wine cellar manager: bottles, racks, drink windows, pairings and a shared wine registry.

commutescout io.github.nicglazkov/commutescout

Live California road conditions: CHP incidents, Caltrans closures, chain controls, and wildfires.

MCP server exposing an Outflow workspace's live architecture graph as context for AI coding agents

Read-only Hyperliquid data: markets, funding rates, order books, candles, positions and fills

fixou fr.fixou/fixou

Create and track quote requests to local French tradespeople (80 trades) on fixou.fr.

Security grades (A-F) for MCP servers. Check one before you install or trust it. mcpgrade.dev

reference-data dev.euroref/reference-data

European govt data, cited: rates, VAT, tax, wages, holidays, FX. 35 countries; Germany free.

reference-data dev.ausref/reference-data

Oceania govt data, cited: rates, VAT, tax, wages, holidays, FX. 8 countries; Australia free.

OGA Antibody Validation io.github.onlygoodantibodies/oga-antibodies

Knockout-controlled antibody validation lookups over the Only Good Antibodies dataset