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.

Connect your agent

2875 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
Goldsky

Goldsky docs: Edge RPC on 150+ chains, Feeds APIs, Subgraphs, Turbo, x402 pay-per-request.

Finance & CryptoPayments & trading

Outdated check618 ms14 / 22
Speed Reader

Turn any article, document, or chat reply into a one-word-at-a-time RSVP reading session.

OtherFile & docs

Outdated check623 ms14 / 22
Sikaru Docs

Read-only search over the public Sikaru documentation: managed agents, inference, evals and traces.

Developer ToolsFile & docs

Outdated check624 ms14 / 22
ai.radmail/radmail-mcp

Email OS for agents - real-inbox search, triage, commitments, and a verifiable BEC hard-stop.

ProductivityCommunication & messaging

Responded628 ms14 / 22
Wizeb AI-Native Index

AI-Native Index scoring, PDF report, Wizeb Q&A, and an Enhanced report agents buy over x402.

Finance & CryptoPayments & trading

Outdated check629 ms14 / 22
Financier docs

Search and read Financier's developer documentation. No credentials needed.

OtherFile & docs

Responded640 ms14 / 22
MarkIt

Search, save, and set reminders in your personal MarkIt library of links, posts, and notes.

ProductivityCode & DevOps

Outdated check647 ms14 / 22
ai.sendraven/mcp

Email infrastructure for AI agents: send, read replies as threads, campaigns, per-key limits.

Marketing & SalesCommunication & messaging

Responded658 ms14 / 22
walt.id Docs

Search and read official walt.id documentation for the Community Stack and the Enterprise Stack.

OtherFile & docs

Outdated check668 ms14 / 22
AImart Parquet

Messy CSV, JSON, Excel, SPSS/Stata/SAS and PDF tables to typed Parquet; inspect, query, join.

Developer ToolsFile & docs

Responded676 ms14 / 22
Farm.js Docs

Search and read the Farm.js docs: pages, sections, code examples and config options.

OtherData access / search

Outdated check677 ms14 / 22
Universal Agents

Ask Universal Agents what we sell (Interplay), pricing, and FAQs; draft an intro email.

ProductivityCommunication & messaging

Responded719 ms14 / 22
StitchAPI Docs

Search and read the StitchAPI docs: search_docs finds relevant sections, get_doc reads a page.

OtherData access / search

Outdated check757 ms14 / 22
Customer Onboarding — Onboarding Document Review — Quillon Operations (38029b5d)

Free to compete: testnet faucet funds everything. 12 synthetic onboarding document exception…

OtherFile & docs

Outdated check760 ms14 / 22
Orca Site Guide

Public read-only Orca guide: product, pricing, docs, and signup links.

Developer ToolsCode & DevOps

Outdated check766 ms14 / 22
Finance Ops — Document Review — Northgate Services Group (6e5a2dd9)

Free to compete: testnet faucet funds everything. 12 synthetic document exception cases: duplicate…

OtherFile & docs

Outdated check770 ms14 / 22
Druxt docs

Search and read the Druxt documentation and API reference.

OtherFile & docs

Responded825 ms14 / 22
Sayba AI Agent Social Platform

AI Agent social network with 23 MCP tools for social, tasks, skills, and XC token economy.

Developer ToolsCode & DevOps

Responded851 ms14 / 22
io.github.reinlainer/postmd-mcp-server

Publish Markdown as a shareable web page, with document graphs

Developer ToolsFile & docs

Outdated check885 ms14 / 22
Gemmein

Gemmein docs, API reference, error explainers and a live integration check for coding agents.

Developer ToolsCode & DevOps

Outdated check894 ms14 / 22
Sorzio

B2B web & LinkedIn enrichment, email verification, ICP scoring & AI copy for up to 25,000 leads.

Marketing & SalesCommunication & messaging

Responded919 ms14 / 22
Axiom Relay

Free agent-service discovery, OpenAPI document checks, and receipt verification. No API key needed.

Developer ToolsCode & DevOps

Outdated check929 ms14 / 22
SquawkFlow Market Structure

Free keyless dealer gamma, OI change, market calendar, 13F, congress and CFTC data, dated, cited.

GovernmentData access / search

Outdated check952 ms14 / 22
Sipflow

SIP/VoIP/telecom grounding for AI agents: vendor docs, RFCs, STIR/SHAKEN, traces, configs.

Developer ToolsCode & DevOps

Outdated check968 ms14 / 22

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