MCP HeartbeatTHE MCP OBSERVATORY
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Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

DiscoveryServer directory

Remote MCP servers

Find a server for your workflow, with connection evidence you can inspect.

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17927 servers

Ordered by checks passedClear filters
Dated server measurements. The status describes the last probe or a listed authentication requirement. Checks that have not been measured are not failures. Open a server to inspect the evidence.
Server / capabilityLast probeMedian latencyChecks passedLast checked
Date Math

Date/time math for agents: business days, holidays, time zones, cron, RRULE. 25 free calls/day.

Developer ToolsCode & DevOps

Responded79 ms14 / 22
Git.Top

Evidence-backed open-source project search, recommendations, alternatives, and comparisons.

Developer ToolsCode & DevOps

Responded79 ms14 / 22
yasashii.org

Human-verified Easy Japanese versions of Japanese administrative and disaster-preparedness info.

Developer ToolsCode & DevOps

Responded79 ms14 / 22
Open Components

Guidelines for UI components with a perfect UX, DX and AX, whether humans or AI agents write them.

Developer ToolsCode & DevOps

Responded80 ms14 / 22
io.github.JonathanB555/torah-mcp

Source discipline for Torah study in Claude: read the real texts, quote exactly, never fabricate

Developer ToolsCode & DevOps

Outdated check80 ms14 / 22
POPCORN Witness Verifier

MCP server for verifying receipts: POPCORN-WITNESS/2.0 signature, digest, and time. Free, read only.

Developer ToolsCode & DevOps

Responded81 ms14 / 22
Robly MCP by usefulapi

Find Robly contacts and lists; subscribe, update and move contacts between lists.

Developer ToolsCode & DevOps

Outdated check81 ms14 / 22
Exoscale MCP by usefulapi

Inspect Exoscale: instances, volumes, SKS, DNS, IPs, quotas and usage; start, stop, reboot VMs.

Developer ToolsCode & DevOps

Outdated check81 ms14 / 22
DicksonOne MCP by usefulapi

List alerts and data loggers, count active alerts, and acknowledge alerts in DicksonOne.

Developer ToolsCode & DevOps

Outdated check81 ms14 / 22
UNPKG

Live npm and UNPKG data for AI agents: resolution, audits, import maps, malware/CVE checks.

SecurityCode & DevOps

Responded83 ms14 / 22
Nummerschilderen.com shop advisor

Search paint-by-number kits, get size and price advice for your own photo, shop info. No login.

MediaCode & DevOps

Responded83 ms14 / 22
ComputeFirst

Free deterministic tools for math, data transforms, dates, text, statistics, finance, and units.

Data & AnalyticsCode & DevOps

Responded83 ms14 / 22
io.github.foxdavidson/property-mortgage-mcp

UK mortgage calculators: stamp duty, MCOB 3A HNW qualification, and bridging loan cost.

Real Estate & PropertyCode & DevOps

Outdated check83 ms14 / 22
io.github.douglasdemaio/vtessera

Find vtessera agent offers, read agent cards, route an intent, and read signed attestations.

Developer ToolsCode & DevOps

Outdated check83 ms14 / 22
Upper Route Planner MCP by usefulapi

Read Upper drivers and stops; create and optimize routes, assign drivers, share routes to the app.

Developer ToolsCode & DevOps

Outdated check83 ms14 / 22
McpStamp Leave Tracker

Employee leave and PTO: requests, approvals, balances, who is out, and conflict checks.

Developer ToolsCode & DevOps

Outdated check83 ms14 / 22
io.github.DigiCatalyst-Systems/dep-diff-mcp

Translates a lockfile diff into a human-readable upgrade plan for npm, PyPI, and GitHub Actions.

Developer ToolsCode & DevOps

Outdated check84 ms14 / 22
br.com.scrypta/scrypta-mcp-server

Scrypta MCP Server — Infraestrutura de visibilidade para Agentes de IA.

Developer ToolsCode & DevOps

Outdated check84 ms14 / 22
LingoHub MCP by usefulapi

MCP server for LingoHub — localization projects, resources, exports and repository pushes.

Developer ToolsCode & DevOps

Outdated check85 ms14 / 22
XGuard Live

Read current software facts with primary-source evidence and verification timestamps.

Developer ToolsCode & DevOps

Responded86 ms14 / 22
web3ctx

Version-true web3 docs, ABIs and human-validated integration recipes over MCP.

Developer ToolsCode & DevOps

Responded86 ms14 / 22
Pixel Agent

Convert images to PNG, JPEG, WebP, or AVIF through one public remote MCP tool.

MediaCode & DevOps

Responded86 ms14 / 22
io.github.holistis/cra-check

Free read-only check of a public GitHub repo for eight security signals related to the EU CRA.

Developer ToolsCode & DevOps

Outdated check86 ms14 / 22
ANIME INTELLIGENCE / AI PURCHASE INTELLIGENCE

AI commerce intelligence for anime, industrial parts, replacements, sourcing and agent buying.

MediaCode & DevOps

Responded87 ms14 / 22

Automated measurements. Not a rating. Unmeasured checks are not failures. How to read the evidence