SaSame MCP Observatory

MCP Readiness Passports for agent discovery — SaSame publishes agent-readable readiness records for public MCP servers: reachable, callable, schema-valid, owner-claimed, and continuously re-checked. Verification status only — we report what we could measure, never a “safe / good / worth-using” verdict.

SaSame continuously audits public MCP servers and issues signed, time-limited readiness observations for servers that agents can actually discover, verify, and call. Standard · Directory · Census · Certified (L3) · JSON · Discord (Early Access)

336 servers currently meet the Observed MCP-Ready bar (A/B) · 1443 observed

Three levels (we do not over-claim):
• Observed — SaSame measured the public endpoint from the outside; owner NOT confirmed. unclaimed:true. A third-party observation, not an endorsement.
• Claimed — the owner proved control (.well-known / DNS / repo / agent-card).
• Certified — SaSame continuously monitors or has fixed the server. Used sparingly.
Is this your server? Claim your MCP Readiness Passport → (free, one click) — a public, owner-controlled, agent-readable record of what SaSame could verify (reachable, callable, schema-valid), re-checked over time. Upgrades Observed → Claimed (owner-confirmed). Correct / delist any time. For agents: MCP claim_start → claim_confirm (.well-known/DNS), or run audit_mcp / verify_mcp_ready on https://live-vps.sasame.online/public-mcp. Email fallback: consulting@srl-sasame.com.
Embed your “MCP-Ready by SaSame” badge (A/B servers) — SaSame’s own signed mark, in your README or site:
MCP-Ready by SaSame
[![MCP-Ready by SaSame](https://live-vps.sasame.online/observatory/badge/<your-server>.svg)](https://live-vps.sasame.online/observatory/)
Find your badge URL in observatory.json. The badge reflects your latest observed grade and is honest by construction — if your server drops below the bar, the badge changes.
How this becomes a service (free today; paid only after the free layer proves its value):
• Free, now — automatic outside observation + provisional grade + signed Observed cert + badge.
• Report (roadmap) — a detailed per-tool readiness report + concrete fixes.
• Monitor (roadmap) — continuous re-audit, badge + cert renewal, verified Market listing.
• Repair (roadmap) — we make your MCP discoverable/callable and prove agents now call it.

Top Observed MCP-Ready servers

ServerGradePassesSigned certLevel
ai.agentrapay/agentraA10/10signed certobserved
ai.autonomad/travelA10/10signed certobserved
ai.baselight/baselightA10/10signed certobserved
ai.compeller/compelA10/10signed certobserved
ai.ironscout/ironscoutA10/10signed certobserved
ai.modulos/demo-bookingA10/10signed certobserved
tech.skybridge.investigation-game/Investigation-GameA10/10signed certobserved
tech.skybridge.times-up/Time-s-UpA10/10signed certobserved
tech.ydb-qdrant.pets/codex-pets-ydb-qdrantA10/10signed certobserved
tech.ydb-qdrant/gravity-ai-uiA10/10signed certobserved
uk.co.flatscope/flatscopeA10/10signed certobserved
video.future/future-video-studioA10/10signed certobserved
wine.beyond/beyond-wineA10/10signed certobserved
work.agentexchange.aivisibility/ai-visibility-mcpA10/10signed certobserved
xyz.cabalspy/wallet-trackerA10/10signed certobserved
xyz.picoads/picoadsA10/10signed certobserved
ai.villiers/charterA10/10signed certobserved
app.cannonstudio/cannon-studioA10/10signed certobserved
app.clicon/lotusA10/10signed certobserved
app.dealermax/public-searchA10/10signed certobserved
app.decibelshield/decibel-shieldA10/10signed certobserved
app.eurocomply/complianceA10/10signed certobserved
app.fryd/mcp-serverA10/10signed certobserved
au.com.iknowthepilot/flight-dealsA10/10signed certobserved
bid.scope/aecA10/10signed certobserved
bid.scope/claimsA10/10signed certobserved
bid.scope/legalA10/10signed certobserved
bio.atlarium/habitat-databaseA10/10signed certobserved
biz.icecat/mcpA10/10signed certobserved
build.exascale/osintA10/10signed certobserved
ca.swiftsign/mcpA10/10signed certobserved
cat.2022/catalunya-2022A10/10signed certobserved
cc.accrue/mcpA10/10signed certobserved
cc.captcha/captchaccA10/10signed certobserved
cloud.prince/princeA10/10signed certobserved
co.bizverify/mcpA10/10signed certobserved
com.abyssfallgame/mcpA10/10signed certobserved
com.agent-tune/agenttuneA10/10signed certobserved
com.agentorist/agentoristA10/10signed certobserved
com.aineedhelpfromotherai/reasoning-commonsA10/10signed certobserved
com.almured/marketplaceA10/10signed certobserved
com.blazesportsintel/college-baseballA10/10signed certobserved
com.changethisfile/mcpA10/10signed certobserved
com.crosswire-api/crosswireA10/10signed certobserved
com.discreterate/publicA10/10signed certobserved
com.eventescapes/event-escapesA10/10signed certobserved
com.finn.www/autoA10/10signed certobserved
com.flightmussy/flightmussyA10/10signed certobserved
com.gettreatmenthelp/gettreatmenthelpA10/10signed certobserved
com.gitsim/chatA10/10signed certobserved
com.googleapis.design/mcpA10/10signed certobserved
com.gribstream/mcpA10/10signed certobserved
ai.weftly/weftlyA9/10signed certobserved
app.cardog/mcpA9/10signed certobserved
app.cooperpetcare.www/cooperA9/10signed certobserved
app.docwand/pdfA9/10signed certobserved
app.evlek/mcp-serverA9/10signed certobserved
app.himalayas/mcpA9/10signed certobserved
app.humantaste/taste-mcpA9/10signed certobserved
app.marketgenius/mcpA9/10signed certobserved
app.nausika/mcpA9/10signed certobserved
app.robohub/robohubA9/10signed certobserved
app.toofi/dental-planningA9/10signed certobserved
art.travel/mcpA9/10signed certobserved
at.designare/knowledgeA9/10signed certobserved
at.uurl/bundlerA9/10signed certobserved
bo.paralelo/mcpA9/10signed certobserved
bot.myagi/openagent-registryA9/10signed certobserved
bot.yeehaw/eventsA9/10signed certobserved
br.com.escoladeradio.www/publicA9/10signed certobserved
br.com.nineoneninetwo/9192A9/10signed certobserved
bz.manda/mandaA9/10signed certobserved
ca.netgrant/canadian-grantsA9/10signed certobserved
ca.tradebasis/automotive-appraisalA9/10signed certobserved
ca.wiremi/marketing-mcpA9/10signed certobserved
ch.entscheidsuche/mcpA9/10signed certobserved
ch.fedlex-connector/fedlex-connectorA9/10signed certobserved
ch.opencaselaw/swiss-caselawA9/10signed certobserved
ch.swisslivingindex/swiss-living-indexA9/10signed certobserved
cloud.dchub/mcp-serverA9/10signed certobserved
cn.whylingxi/insuranceA9/10signed certobserved
co.ainumbers/toolsA9/10signed certobserved
ac.tandem/docs-mcpB9/10signed certobserved
ai.aarna/atars-mcpB9/10signed certobserved
ai.airshelf/catalogB9/10signed certobserved
ai.arclan/registryB9/10signed certobserved
ai.bezal/local-commerceB9/10signed certobserved
ai.boolsai/signalsB9/10signed certobserved
ai.bringyour/bringyourB9/10signed certobserved
ai.childadhd/libraryB9/10signed certobserved
ai.childanxiety/libraryB9/10signed certobserved
ai.childpsychiatry/libraryB9/10signed certobserved
ai.com.mcp/lenny-rachitsky-podcastB9/10signed certobserved
ai.com.mcp/linkedinB9/10signed certobserved
ai.com.mcp/registryB9/10signed certobserved
ai.com.mcp/stravaB9/10signed certobserved
ai.demanddiscovery/mcpB9/10signed certobserved
ai.dynamicfeed/dynamic-feedB9/10signed certobserved
ai.exa/exaB9/10signed certobserved
ai.gethal/mcpB9/10signed certobserved
ai.helixar/mcpB9/10signed certobserved
ai.inxy/seo-auditB9/10signed certobserved
ai.justpublish/just-publishB9/10signed certobserved
ai.kontato/kontatoB9/10signed certobserved
ai.lucasandersen/mlp-taxB9/10signed certobserved
ai.memestack/mcpB9/10signed certobserved
ai.ninar/ninarB9/10signed certobserved
ai.offerhopper.mcp/shopping-optimizerB9/10signed certobserved
ai.openmandate/mcpB9/10signed certobserved
ai.openmandate/mcpB9/10signed certobserved
ai.pictomancer/image-processingB9/10signed certobserved
ai.pimea/pimeaB9/10signed certobserved
ai.pocketdrives/pocket-drivesB9/10signed certobserved
ai.quantifyme/quantifymeB9/10signed certobserved
ai.readypermit/geoB9/10signed certobserved
ai.reka/mcpB9/10signed certobserved
ai.rfix/mcpB9/10signed certobserved
ai.rootdata/public-directoryB9/10signed certobserved
tech.skybridge.productivity/ProductivityB9/10signed certobserved
today.blame/mcpB9/10signed certobserved
travel.kismet/mcp-serverB9/10signed certobserved
uk.co.shipmycar/quoteB9/10signed certobserved
vc.doomscore/doomB9/10signed certobserved
video.quiz/apiB9/10signed certobserved
world.3keys/wish-gameB9/10signed certobserved
xyz.actiongate.api/actiongateB9/10signed certobserved
xyz.bizclaw/business-directoryB9/10signed certobserved
xyz.crinkl.mcp/crinkl-commerceB9/10signed certobserved
xyz.gembook/gembookB9/10signed certobserved
xyz.loadbay/loadbayB9/10signed certobserved
xyz.spocal/sportsB9/10signed certobserved
xyz.urbanplayground/eventsB9/10signed certobserved
ai.searchshop.www/la-luerB9/10signed certobserved
ai.switchapp/switchB9/10signed certobserved
ai.teenadhd/libraryB9/10signed certobserved
ai.teenanxiety/libraryB9/10signed certobserved
ai.teenpsychiatry/libraryB9/10signed certobserved
ai.teentherapy/libraryB9/10signed certobserved
ai.tensorfeed/mcp-serverB9/10signed certobserved
ai.tensorfeed/mcp-serverB9/10signed certobserved
ai.tokenarcade/tokenarcadeB9/10signed certobserved
ai.tunnelmind/scryB9/10signed certobserved
ai.unulu/unuluB9/10signed certobserved
app.flaim/mcpB9/10signed certobserved
co.callendar/mcpB9/10signed certobserved
co.clutch/mcpB9/10signed certobserved
co.haveny/california-hoa-lawB9/10signed certobserved
co.heyspark.mcp/serverB9/10signed certobserved
co.tempguru/event-staffingB9/10signed certobserved
co.truemarkets/marketdataB9/10signed certobserved

Recently improved

ServerGrade change
no grade improvements observed yet (needs ≥2 observation cycles)

Common failure modes (aggregate — no server named)

What most-often keeps a server from being discoverable/callable. We never name C/D servers; we publish the pattern so builders can fix it.

CriterionServers failing
C7 Returns real content (anti-ghost)1304 server(s)
C5 Safety annotation presence1249 server(s)
C3 Tool object validity1089 server(s)
C4 Description sufficiency / selectability1084 server(s)
C2 Tool listability1082 server(s)
C1 Protocol handshake conformance1046 server(s)
C8 Machine-discoverable identity1046 server(s)
C10 Honest error behavior982 server(s)
C6 Liveness & latency268 server(s)
C9 Token efficiency111 server(s)

Observations are time-limited (certs expire in 14 days; liveness decays). Verify any cert offline with the issuer pubkey (302a300506032b6570032100...). Public-registry data, honestly observed. Delisting honored. Generated 2026-06-18T19:05:33.065Z.