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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4923 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
Cuevr

Read-only tools: search the site, read pages, see plans, price a quote, cite sourced figures.

OtherData access / search

Responded106 ms14 / 22
vergabe-api: German public procurement notices

German public tenders as normalised JSON (CPV, NUTS, deadlines). Free sample; search paid via x402.

Developer ToolsCode & DevOps

Outdated check107 ms14 / 22
Codemate website

Read-only tools for codemate.com: search, articles, case studies, company and contact facts, jobs.

OtherData access / search

Responded109 ms14 / 22
Nalegalu MCP

Semantic search over Polish law and case law, citing the exact in-force article.

LegalCode & DevOps

Outdated check109 ms14 / 22
io.github.vanshulgoyal101/mcp

Read any web page as clean Markdown for AI agents: fetch, search, metadata, links. SSRF-safe.

Developer ToolsFile & docs

Responded110 ms14 / 22
io.github.vanshulgoyal101/ctx

Turn a GitHub repo or docs site into agent-ready context: pack it or search it, over MCP.

Developer ToolsCode & DevOps

Responded110 ms14 / 22
905 Trades

905 Trades, Hamilton ON residential trades referral network: facts, site search, quote requests.

OtherData access / search

Responded111 ms14 / 22
x402 Bazaar Rank

Ranked search over 15k+ live x402 services by real 30-day usage; free top-5, paid depth via x402.

Developer ToolsCode & DevOps

Outdated check111 ms14 / 22
travelMCP Directory

Search MCP servers, agent skills and APIs for travel: hotel ID mapping, rates, rooms.

TravelData access / search

Responded112 ms14 / 22
Open Trademarks

Free trademark search across the US, EU and Israeli registers. A register search, not legal advice.

LegalData access / search

Responded112 ms14 / 22
Enpitech

AgentReady website scans for AI agents, AI Hub search, newsletter and contact, from Enpitech.

Marketing & SalesCode & DevOps

Outdated check113 ms14 / 22
Public Data Catalog

Reviewed public-data search and execution with provenance and verifiable integrity receipts.

Data & AnalyticsCode & DevOps

Responded114 ms14 / 22
app.allagents/directory

Find AI agents (A2A, MCP, API) with tested badges: search, read cards, relay messages, list agents.

Developer ToolsData access / search

Responded118 ms14 / 22
Fourward AI visibility tools

Score any website's AI search visibility out of 100 and see which of 20 AI crawlers can read it.

OtherBrowser & web scraping

Responded123 ms14 / 22
the drain

Plain-text security bulletin board for AI agents: read, search, post, reply. No auth to read.

Developer ToolsData access / search

Responded123 ms14 / 22
Quartermaster eSIM

Agent-only store: AI agents search, quote and buy travel eSIM data plans for their users.

TravelCode & DevOps

Outdated check123 ms14 / 22
Goatcade

Real, free browser games that open in the chat: city builder, racer, horde shooter, deckbuilder.

OtherOther

Responded124 ms14 / 22
io.github.Ikalus1988/misakanet

Failure-memory layer for coding agents: search evidence-rated failure lessons by error text.

Developer ToolsCode & DevOps

Outdated check124 ms14 / 22
UmbHost Knowledgebase

Search and read UmbHost help articles: GreenStack, Umbraco hosting, DNS, email, SSL and more.

ProductivityCommunication & messaging

Responded125 ms14 / 22
AgentDNA by ANGELS

Company catalogs for AI agents: products, prices, availability. Search, read, or start one free.

OtherData access / search

Responded128 ms14 / 22
BitSpire

Search and read bitspire.ch: .NET development, AI agents, trainings and blog by BitSpire GmbH

Developer ToolsData access / search

Responded129 ms14 / 22
ISHOB Knowledge Archive

License-checked research archive and technical-spec search for AI agents. Pay per call via x402.

Finance & CryptoData access / search

Responded130 ms14 / 22
WorkingMemory

Persistent personal memory for AI assistants — save, search, and recall across every MCP client.

Developer ToolsKnowledge & memory

Responded130 ms14 / 22
ImpactLine public research

Search public laws and implementation evidence with sources, scope limits and dated coverage.

Developer ToolsCode & DevOps

Responded132 ms14 / 22

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