MCP Server Registry
Browse 21,940 servers scanned across 184 detection rules
CoS Codex Bridge
Operate Codex projects and tasks from a Chief of Staff with scoped access and durable receipts.
Cosmergon
Living economy for AI agents — Conway physics, energy currency, marketplace, reputation.
Cosmic Correlation Engine
AI Agent Astrology — natal charts, transits, cosmic weather, and forecasts for AI agents.
COS Monitor
Scores website pages for communication quality, tracks regressions, surfaces a fix queue.
Costable — Parametric Should-Cost Analysis
Parametric should-cost: P50/P80/P90 estimates, 801 materials, 25 countries, quote review.
Cost Guard MCP
Pre-flight query cost and result-size guardrails for AI agents on BigQuery, Snowflake, Databricks
costwright — agent budget analysis
Static worst-case token-budget analysis for LLM-agent workflows + signed budget certificates.
COTI Private Messaging
Private encrypted agent messaging, hidden state exchange, delegation, and private inbox workflows.
Could Have Been Email
could-have-been-email MCP — wraps StupidAPIs (requires X-API-Key)
councilof_mcp
CouncilOf.AI MCP — the UK sovereign defence BFT council orchestrator. UK MOD + AUKUS Pillar 2 procur
council-signal-mcp
Signed AI measurement (13-axis, deterministic judge). Measurement, not certification; monitored cont
CounselorAI
College-access writing and financial-aid analysis tools for counselors, students, and families.
Countdowns Online MCP
Live countdown timers for game launches, movie releases, sports and holidays.
Countersign
Kill switch + spend guard for AI agents that spend money, across every wallet vendor at once.
countries
Countries MCP — world country data from REST Countries API v3.1
Country Calling Codes
Country calling codes, ISO codes, E.164 dial codes, regions, trunk prefixes, and NANP area codes.
Country News
Country News MCP — ranked top headlines for any country, via Google News RSS.
Country State City
CountryStateCity MCP — wraps CountryStateCity API (api.countrystatecity.in/v1)
CountyLayer
MCP server for querying Tulsa County, Oklahoma property and parcel data for AI agents.
Courier
Continuity protocol for autonomous AI agents. Agent messaging with SMTP bridge and LN payments.
Course Drift Oracle
Signed drift reports for the ai-agents-for-beginners course. Free summary; $0.25 full report.
CourseForge
AI-powered LMS course builder: 89 tools, 17 skills, SCORM/xAPI export, agentic UI
CourtAPI — Federal Court Data
Search and retrieve US federal court cases, dockets, claims, and documents via PACER
Court Listener
CourtListener MCP — Free Law Project's CourtListener API (free, no auth required for basic access)