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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17922 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
Rein Agent Risk Scale

Agent Risk Rating, A–D (NR = not rated): self-declared and unverified; not a credit rating.

Developer ToolsCode & DevOps

Responded318 ms15 / 22
AgentBuffs

Find MCP servers and agent skills for a job, ranked, with install config for your client.

Developer ToolsCode & DevOps

Responded319 ms15 / 22
Spala Public MCP

Discovery, OAuth, project operations, and exact project MCP handoff for Spala backend projects.

Developer ToolsCode & DevOps

Responded320 ms15 / 22
Pressa - LaTeX to PDF

Compile LaTeX to PDF without installing TeX Live. No API key needed to start.

Developer ToolsCode & DevOps

Responded324 ms15 / 22
NAIF Gravity

Free MCP/API diagnostics. Micro Tools V2: free preview, $1 JSON check, $2 API shape, $3 normalize.

Developer ToolsCode & DevOps

Responded330 ms15 / 22
Family Office Knowledge Graph

Family Office Knowledge Graph: read-only MCP door over the public record. Agentic KG Holdings.

Developer ToolsCode & DevOps

Responded330 ms15 / 22
Orb Studio news radars

News radars with AI anchors, market and network sensors, a daily violin piece composed from them

Developer ToolsCode & DevOps

Responded331 ms15 / 22
Autoza UK

UK used cars: road tax (VED), ULEZ charges, MOT dates, DVSA reliability, live dealer stock.

Finance & CryptoCode & DevOps

Responded332 ms15 / 22
Green Gooding

Read-only catalog for Green Gooding — NYC peer-to-peer rental marketplace.

Developer ToolsCode & DevOps

Responded332 ms15 / 22
Health Record Rights Index

Health record rights: 198 countries scored 0 to 100 with sources; the 50 states and DC; real cases.

Developer ToolsCode & DevOps

Responded332 ms15 / 22
Humanuscrit — HAPP

Submit a literary text in French to Humanuscrit, a publisher open to humans and AI agents.

Developer ToolsCode & DevOps

Responded332 ms15 / 22
VulKill Security

Autonomous AppSec & DAST scanner across 12 security domains (260+ controls) with 3-Layer Triage.

Developer ToolsCode & DevOps

Responded346 ms15 / 22
SameDayDesk agent tools

Readiness checks, a paid Fix Pack, TaskMarket reads, and caller-declared funnel evidence.

Developer ToolsCode & DevOps

Responded350 ms15 / 22
ORA · ORUM

Autonomous organism: symbolic field-state, verified-provenance art licensing, x402 referral.

Developer ToolsCode & DevOps

Responded356 ms15 / 22
EQVPS — VPS and code sandboxes for AI agents

No-KYC VPS + per-second code sandboxes AI agents run over MCP — 75 tools, SDK, pay BTC/XMR/USDC/USDT

Developer ToolsCode & DevOps

Responded361 ms15 / 22
Product catalog

Search a product catalog for a title, price, pictures, and a page where it can be bought.

E-commerceCode & DevOps

Responded362 ms15 / 22
BMLT Meetings

Search Narcotics Anonymous meetings worldwide via the BMLT directory.

Developer ToolsCode & DevOps

Responded365 ms15 / 22
Strale

Hundreds of pay-per-call tools for agents: company records, screening, validation, web reading.

Developer ToolsCode & DevOps

Responded368 ms15 / 22
SEC EDGAR Insider Trades & Financials

SEC EDGAR for agents: Form 4 insider trades, cluster buys, filings, XBRL financials and search.

Developer ToolsCode & DevOps

Responded370 ms15 / 22
FactReason

Check exact npm/PyPI upgrades for evidence-backed breaking changes; query APIs and components.

Developer ToolsCode & DevOps

Responded371 ms15 / 22
DomainKits

Search newly registered, expired, aged, active, deleted and for-sale domains, plus WHOIS and DNS.

Developer ToolsCode & DevOps

Responded371 ms15 / 22
Privi Quantum

Quantum on IonQ/IBM/Braket: spending mandates, signed benchmarks, paid PQC CBOM, advantage receipts.

Developer ToolsCode & DevOps

Responded379 ms15 / 22
Supplementscanner

Live supplement prices per kg, serving or capsule from stores across Europe. Free, no API key.

Developer ToolsCode & DevOps

Responded380 ms15 / 22
Privi Anchor

Hash anchoring and proof-of-existence on chain for AI agents and apps. Free with an API key.

Finance & CryptoCode & DevOps

Responded380 ms15 / 22

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