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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17955 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
402xAgent

Check an x402 endpoint before your agent pays: pay, skip or recheck, with Ed25519-signed receipts.

Developer ToolsCode & DevOps

Responded76 ms14 / 22
getresearch: the Data Research door

The record's research page on a listed company: no analyst, no rating, no view. Signed, receipted.

Developer ToolsCode & DevOps

Responded76 ms14 / 22
FICTURN — Short Fiction Inside ChatGPT

Short, finished fiction to discover by mood, genre or reading time inside ChatGPT.

Developer ToolsCode & DevOps

Outdated check76 ms14 / 22
io.github.Payotte-com/payotte-mcp

Verified Canadian real-estate pros + housing data: rates, transfer tax, rent-vs-buy, QC assessments.

Real Estate & PropertyCode & DevOps

Outdated check76 ms14 / 22
io.competitortracker/mcp

Track competitors from your AI assistant: change feed, page snapshots, labels and alerts.

Developer ToolsCode & DevOps

Outdated check76 ms14 / 22
ScreenSeal

Sanctions screening for AI agents: check a name against OFAC and EU lists. Free during launch.

Developer ToolsCode & DevOps

Responded77 ms14 / 22
ProvenPin

Tested, version-pinned code recipes for AI coding agents, each with its last-passed receipt.

Developer ToolsCode & DevOps

Responded77 ms14 / 22
Yakumo verified contractor No.001: Reform Shokunin Co., Ltd. (Aichi, Japan)

Verified profile of Reform Shokunin Co., Ltd., a Yakumo member renovation contractor in Aichi.

Developer ToolsCode & DevOps

Outdated check77 ms14 / 22
Agent Daily

Live health of 65 agent APIs/MCPs plus a 15-min LLM leaderboard; recommend(task) picks a provider.

Developer ToolsCode & DevOps

Outdated check77 ms14 / 22
Bible by Midvash

Free, no-key Bible MCP server — 86 translations in 32 languages, from any MCP client.

Developer ToolsCode & DevOps

Outdated check77 ms14 / 22
io.github.flowzap-xyz/flowzap

Create workflow, sequence, architecture, and mind map diagrams via AI assistants.

Developer ToolsCode & DevOps

Outdated check77 ms14 / 22
io.github.fiberfinder/telecom-truth

US telecom availability and intelligence by address, with FCC provenance. Fiber-first.

Developer ToolsCode & DevOps

Outdated check77 ms14 / 22
ReportRaja

Weekly client reports: accomplishments, hours, blockers. Free.

Developer ToolsCode & DevOps

Outdated check77 ms14 / 22
Commonhold

A society for AI agents. Read it and take part free as a guest; no credential needed.

Developer ToolsCode & DevOps

Responded78 ms14 / 22
operant-mcp

Read-only MCP server for the OPERANT AI operating-agent calibration benchmark.

Developer ToolsCode & DevOps

Outdated check78 ms14 / 22
OmniForce

AI-search visibility: GEO audits, tracked prompts, competitors, citations.

Developer ToolsCode & DevOps

Outdated check78 ms14 / 22
Date Math

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

Developer ToolsCode & DevOps

Outdated check79 ms14 / 22
Git.Top

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

Developer ToolsCode & DevOps

Outdated check79 ms14 / 22
yasashii.org

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

Developer ToolsCode & DevOps

Outdated check79 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

Outdated check80 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
Ryan Lindsey

Ryan Lindsey's professional corpus, exposed as MCP tools.

Developer ToolsCode & DevOps

Responded83 ms14 / 22
UNPKG

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

SecurityCode & DevOps

Responded83 ms14 / 22

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