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YellowMCP

from 21st-dev

Reliability intelligence for remote MCP servers. Agent-native discovery for 1,700+ servers with uptime monitoring and latency benchmarks.

🔥🔥🔥✓ VerifiedFreeQuick setup

20,348 Servers554 Up917 Reachable57 Degraded653 DownAvg Trust: 83Health Checks: 14420K+

MCP Server Reliability Intelligence

Monitoring 20,348 servers · 14420K+ health checks

Server StatusiBased on real-time health checks every 5-15 minutes

Up554(25%)Reachable917(42%)Degraded57(3%)Down653(30%)

Trust Score DistributioniTrust scores combine security posture (auth, CORS, SSL) with reliability data

Excellent1,208

Good449

Fair512

Poor11

Critical0

24h Uptime Heatmap — Top 30 ServersiGreen = up, Blue = reachable (auth-required), Yellow = degraded, Red = down, Gray = no data

UTC hours

13:00

16:00

19:00

22:00

1:00

4:00

7:00

10:00

Netdata

AWS Knowledge

PostHog MCP Server

MCP Registry Server

ContextLattice

edgar.tools SEC Intellige

ShipSwift

com.monday/monday.com

io.github.alphavantage/al

io.github.promplate/hmr

ChromaDB Remote MCP Serve

BoostedTravel

ai.smithery/brave

app.thoughtspot/mcp-serve

Rootly

Flaim Fantasy

Supabase

com.teamwork/mcp

Slack MCP Server

io.github.cyanheads/pubme

cloud.dchub/mcp-server

Nutrition MCP

Skyvern

Frihet ERP

com.atlassian/atlassian-m

com.postman/postman-mcp-s

Math MCP Learning

Pyth Pro MCP Server

io.github.cyanheads/clini

ai.klavis/strata

UpReachableDegradedDownNo data

Ecosystem Intelligence

65

Moderate

Ecosystem HealthiComposite score combining uptime, trust, maintenance activity, and authentication coverage across all monitored servers

1.0

Up/Down Ratio (24h)iRatio of servers that recovered vs went down in the last 24 hours. Above 1.0 means more servers coming online than going offline

↑3031↓3114

740

Downfall Events (24h)iServers that changed from up/reachable to down in the last 24 hours

Daily Health Checks (7d)

Notable Downfalls (24h)

↓Netdata★79,4373h ago

↓PostHog MCP Server★35,2035h ago

↓GitHub★31,05711h ago

↓Oh My Posh Validator★22,9373h ago

↓MCP Registry Server★6,96618h ago

Reliability Movers

Rising Reliability

Figma MCP Server+100.0%

com.jepto/mcp+100.0%

com.getunblocked/unblocked-mcp+100.0%

Trends MCP+100.0%

Agent Module+100.0%

Declining Reliability

seltz-100.0%

io.github.ax-platform/ax-platform-100.0%

CivData - Environmental Compliance-100.0%

ai.smithery/smithery-unicorn-100.0%

ai.smithery/smithery-ai-github-100.0%

Category Trust Scores

Registry Rankings

Source Servers Avg Uptime Avg Trust smithery 422 91.8% 93 pulsemcp 115 61.3% 81 registry 1607 62.9% 81 mcpmonitoring 36 50.7% 77

Live Monitoring Feed

Real-time health check results from our monitoring network

TimeServerStatusLatency

6m agocom.echosaw/mcp-serverreachable254ms

6m agocloud.dchub/mcp-serverup176ms

6m agoDepthyup30ms

16m agocom.echosaw/mcp-serverreachable1873ms

20m agoAgentUtil Contextdown253ms

16m agocloud.dchub/mcp-serverup215ms

16m agoDepthyup53ms

20m agoLika Rikareachable580ms

20m agoio.github.WirterNow/agent-bankup394ms

20m agoai.smithery/callmybot-domoticzdown452ms

20m agoGraphOS MCP Toolsup178ms

20m agoKyrgyz Newsreachable393ms

20m agoSuperSendreachable282ms

20m agoio.tkllabs.bh.mcp-servers/ethereachable433ms

20m agoai.smithery/arjunkmrm-ahoy2down432ms

20m agoio.github.KyleTaggart/lspup1782ms

20m agonet.sprtx/sprtx-mcpreachable854ms

20m agohumanMCPup338ms

20m agoWaveGuarddegraded5749ms

20m agoPiranha Visiondown65ms

Top Reliable Servers

View all →

Server Status Uptime Trust

1 Netdata 99.9% 100 2 AWS Knowledge 100.0% 100 3 PostHog MCP Server 99.8% 100 4 MCP Registry Server 99.2% 100 5 ContextLattice 100.0% 95 6 ShipSwift 99.7% 95 7 edgar.tools SEC Intelligence 100.0% 95 8 com.monday/monday.com 99.9% 100 9 io.github.alphavantage/alpha_vantage_mcp 99.9% 85 10 io.github.promplate/hmr 100.0% 100 11 ChromaDB Remote MCP Server 100.0% 100 12 BoostedTravel 99.5% 85 13 ai.smithery/brave 99.8% 95 14 app.thoughtspot/mcp-server 99.9% 100 15 Rootly 99.4% 100 16 Flaim Fantasy 98.9% 100 17 Supabase 99.7% 100 18 com.teamwork/mcp 99.7% 100 19 Slack MCP Server 99.9% 100 20 io.github.cyanheads/pubmed-mcp-server 99.3% 85

Security Intelligence

Full report →

269

No Authentication

52%

Open CORS

2,180

Servers Scanned

83/100

Avg Trust Score

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