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

41666 servers

Ordered by checks passed
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
Billogram MCP by usefulapi

Read invoices, customers, items and balances; create invoices, customers and items in Billogram.

Finance & CryptoPayments & trading

Responded204 ms15 / 22
YoushowIELTS MCP

Read-only MCP for IELTS Writing Task 2 samples, Speaking cue cards and writing band descriptors.

Developer ToolsCode & DevOps

Outdated check204 ms15 / 22
1inch MCP

Doc search, intent & cross-chain swaps, limit orders, portfolio, spot prices, gas & all APIs.

OtherData access / search

Responded205 ms15 / 22
glim.sh

Give your agent live data from Twitter, Reddit, the web and GitHub. No API keys, no scraping stack.

Developer ToolsCode & DevOps

Responded205 ms15 / 22
Bookafy MCP by usefulapi

Review appointments, customers and staff, and manage Bookafy bookings.

Developer ToolsCode & DevOps

Responded206 ms15 / 22
Canli Fundamentals

SEC fundamentals point in time: first reported, known as of a date, every restatement.

Developer ToolsCode & DevOps

Outdated check206 ms15 / 22
Tokyo Charter Bus

Discover Tokyo charter coaches, routes and reference fares. Quotations need user confirmation.

Developer ToolsCode & DevOps

Responded207 ms15 / 22
com.sfxmint/sounds

Free CC0 sound effects for apps and games: roles, sets, search; 20 keyless downloads a day; make one

OtherData access / search

Responded207 ms15 / 22
Memberful MCP by usefulapi

Manage Memberful members, subscriptions, plans, passes and coupons via the GraphQL API.

Developer ToolsPayments & trading

Responded207 ms15 / 22
SalesBlink Cold Email

Cold email sequences, leads, templates, senders, inbox, and analytics via the SalesBlink API.

ProductivityCommunication & messaging

Outdated check207 ms15 / 22
Awtomic MCP by usefulapi

Read Awtomic subscriptions, customers and billing attempts; pause, skip, reschedule, cancel.

Finance & CryptoPayments & trading

Responded208 ms15 / 22
SAT Score Percentiles MCP

SAT score percentiles and class of 2026 SAT averages and participation by state (College Board).

Developer ToolsCode & DevOps

Responded208 ms15 / 22
Nevent MCP

Talk to your live-events CRM (campaigns, analytics, paid ads, segments) in Claude and ChatGPT.

Marketing & SalesCode & DevOps

Outdated check208 ms15 / 22
Veabird: ski & beach trip planner

Ski & beach trip planning: resort matching, snow and sargassum forecasts, lodging and flights.

TravelCode & DevOps

Outdated check208 ms15 / 22
BlockVectra Docs: Robinhood Chain & EVM

Search and read Robinhood Chain and EVM RPC/API docs. No account, API key or local install.

OtherData access / search

Responded209 ms15 / 22
AgendaPro MCP by usefulapi

Read AgendaPro bookings, slots, clients, services and sales; create, update and cancel bookings.

Developer ToolsCode & DevOps

Responded209 ms15 / 22
Open Economics

Discover, resolve, and query official Brazilian economic data with semantic search and provenance.

Developer ToolsCode & DevOps

Outdated check209 ms15 / 22
SalesBook by MaxedS: B2B Startup Rankings & Enterprise Vendor Discovery

B2B startup rankings, enterprise AI vendor discovery, buyer-fit scores, and sourced deal claims.

OtherOther

Responded210 ms15 / 22
Stabledrop escrow payments

Stablecoin escrow payments the buyer can dispute, with a signed receipt. Pay a wallet or an email.

Finance & CryptoPayments & trading

Responded210 ms15 / 22
AFAS Software MCP by usefulapi

Browse AFAS connectors, read their fields and records in AFAS Software.

Developer ToolsCode & DevOps

Responded211 ms15 / 22
Student Loan RAP Calculator

Student loan RAP payment calculator, 2026 federal loan limits, SAVE/PAYE/ICR end dates (OBBBA).

Finance & CryptoPayments & trading

Responded211 ms15 / 22
TheFaceAnalysis

Face shape rules and a 102-face open measurement dataset. Read-only, no photos.

MediaAI / LLM tooling

Outdated check211 ms15 / 22
FlatHunt

Search furnished Berlin housing, compare listings, and manage favorites and saved-search alerts.

Real Estate & PropertyData access / search

Responded212 ms15 / 22
Countersignatory

Buy a verified human's approval, verification or judgment at a published price, paid by x402 or card

Finance & CryptoPayments & trading

Responded212 ms15 / 22

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