MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

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

41819 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
AgentDiet AI Token Diet & Context Window Distiller

Strips 85-97% of HTML/DOM bloat into clean Markdown or JSON with cryptographic ROI proof.

OtherFile & docs

Responded545 ms15 / 22
Nimbus BCI

BCI/EEG toolkit: public MOABB/BNCI datasets, pipeline build/validate, hosted training, BIDS export.

Developer ToolsCode & DevOps

Responded545 ms15 / 22
SendIt

Publish and schedule social posts, upload media, and review analytics through OAuth.

Developer ToolsCode & DevOps

Responded546 ms15 / 22
guide.militaryleader/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Responded546 ms15 / 22
io.github.physics-star-cat/databutler-uk-rates

Current UK tax-year rates and thresholds, verified against gov.uk with source URLs and dates.

GovernmentCode & DevOps

Responded547 ms15 / 22
Everyday Software Voice Demo

Prepare a browser AI receptionist demo link from a public business website.

Developer ToolsCode & DevOps

Responded548 ms15 / 22
X402-Broker Global A2A, MCP & x402 Super-Marketplace

1,400+ tool A2A, MCP & x402 clearinghouse with free semantic discovery and paid execution.

Finance & CryptoPayments & trading

Responded548 ms15 / 22
io.github.kody-w/raptr-domains

Check and price up to 20 domain names at once; agents can register them, paying per request.

Developer ToolsCode & DevOps

Responded548 ms15 / 22
io.github.kody-w/rar-agent-finder

Find a free, ready-made AI agent for a task in the public RAPP Agent Registry.

Developer ToolsCode & DevOps

Responded548 ms15 / 22
io.github.IsaiahDupree/realtystack-mcp

U.S. real-estate data: property records, AVM value + rent estimates, sale/rental listings.

Real Estate & PropertyCode & DevOps

Responded549 ms15 / 22
guide.photographer/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Responded549 ms15 / 22
Nerf Watch

Daily Nerf Watch scores for Claude and GPT models on one private, code-graded suite. Read-only.

OtherAI / LLM tooling

Responded551 ms15 / 22
ITBI SP · São Paulo real estate prices

Real sale prices (ITBI) for every building, street and district in São Paulo, plus homes for sale.

Real Estate & PropertyData access / search

Responded551 ms15 / 22
CookieRisk Quickscan

Scan a public homepage for cookies and tracking observed before consent interaction.

OtherOther

Responded551 ms15 / 22
io.github.kody-w/raptr-agent-finder

Find a free, ready-made AI agent for a task in the open agent registry (RAR).

Developer ToolsCode & DevOps

Responded551 ms15 / 22
guide.independence/guide-registry

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

OtherOther

Responded551 ms15 / 22
ClauseAI

Generate attorney-drafted NDAs, MSAs, DPAs, and more as PDF, ODT, or Markdown. No account required.

LegalFile & docs

Responded552 ms15 / 22
Signal Oracle

Pay-per-call change-intelligence feeds for AI agents over x402 (deps, security, regs, tariffs)

Developer ToolsCode & DevOps

Responded552 ms15 / 22
Sanctuary

Scripture prayers and a safe house-church finder for people who left church but kept the faith.

Developer ToolsCode & DevOps

Responded552 ms15 / 22
Bullpen

AI sales team that works the phone: gets a real person on the line. Agents sign up by paying (MPP).

Developer ToolsCode & DevOps

Responded552 ms15 / 22
io.github.Natden444/pickanagency

Search 47,000+ marketing agencies and get AI-matched with fitted agencies, from Pick an Agency.

Marketing & SalesCode & DevOps

Responded553 ms15 / 22
io.github.justjlee/omnarai-mcp

Deliberation + live 5-model council divergence over the Omnarai multi-AI attributed corpus.

Developer ToolsCode & DevOps

Responded553 ms15 / 22
ISO 20022 Navigator

Look up ISO 20022 messages, bank transaction codes, legacy MT replacements, schemes and code sets.

Developer ToolsData access / search

Responded554 ms15 / 22
PaintColorHQ Color Match

Closest real, purchasable paint colors across 13 brands for any hex value, scored with CIEDE2000.

Developer ToolsCode & DevOps

Responded556 ms15 / 22

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