Chronary MCP Server
https://api.chronary.ai/mcp
Remote
v1.0.0
Published by api.chronary.ai — no publish provenance and no public repository, so the publisher could not be verified and the source cannot be independently located.
Calendar API for AI agents — events, availability, scheduling, webhooks, and iCal feeds.
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 3 = 97. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −3 | capability blast radius (moderate) — client exposure if the model is manipulated |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 3
medium Untrusted input can drive an external actionMTC-FLOW-005
Untrusted-input tools ([get_agent, get_calendar, get_booking_page]) co-exist with external-action tools ([respond_to_proposal, resolve_proposal, cancel_proposal, create_webhook, update_webhook, delete_webhook, create_booking_page]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.
Evidence: untrusted [get_agent, get_calendar, get_booking_page] → sinks [respond_to_proposal, resolve_proposal, cancel_proposal, create_webhook, update_webhook, delete_we
Fix: Require confirmation for state-changing/egress actions triggered after processing untrusted content.
Location: flow get_agent → respond_to_proposal
medium Unconstrained URL/host parameter "url" on "create_webhook"MTC-CAP-007
Tool "create_webhook" takes a URL/host parameter "url" with no allowlist/pattern. An outbound-request tool with an unbounded destination enables SSRF and cloud-metadata access (e.g. 169.254.169.254).
Fix: Allowlist destinations or constrain the parameter; block private/link-local addresses server-side.
Location: tool create_webhook · inputSchema.properties.url
medium Unconstrained URL/host parameter "url" on "update_webhook"MTC-CAP-007
Tool "update_webhook" takes a URL/host parameter "url" with no allowlist/pattern. An outbound-request tool with an unbounded destination enables SSRF and cloud-metadata access (e.g. 169.254.169.254).
Fix: Allowlist destinations or constrain the parameter; block private/link-local addresses server-side.
Location: tool update_webhook · inputSchema.properties.url
Tools 54
Each tool and what it can reach — enumerated from the running server.
cancel_proposalnetwork egresscreate_booking_pagenetwork egresscreate_webhooknetwork egressdelete_webhooknetwork egressget_agentingests untrusted inputget_booking_pageingests untrusted inputget_calendaringests untrusted inputresolve_proposalnetwork egressrespond_to_proposalnetwork egressupdate_webhooknetwork egress
Show 44 more tools ↓
accept_termsno sensitive capabilitycancel_connection_linkno sensitive capabilitycancel_eventno sensitive capabilityclear_availability_rulesno sensitive capabilityconfirm_eventno sensitive capabilitycreate_agentno sensitive capabilitycreate_calendarno sensitive capabilitycreate_connection_linkno sensitive capabilitycreate_eventno sensitive capabilitycreate_proposalno sensitive capabilitycreate_scoped_keyno sensitive capabilitydelete_agentno sensitive capabilitydelete_booking_pageno sensitive capabilitydelete_calendarno sensitive capabilitydelete_ical_subscriptionno sensitive capabilityfind_meeting_timeno sensitive capabilityget_audit_logno sensitive capabilityget_availabilityno sensitive capabilityget_availability_rulesno sensitive capabilityget_calendar_contextno sensitive capabilityget_connection_linkno sensitive capabilityget_eventno sensitive capabilityget_ical_subscriptionno sensitive capabilityget_proposalno sensitive capabilityget_usageno sensitive capabilityget_webhookno sensitive capabilitylist_agentsno sensitive capabilitylist_booking_pagesno sensitive capabilitylist_calendarsno sensitive capabilitylist_eventsno sensitive capabilitylist_ical_subscriptionsno sensitive capabilitylist_proposalsno sensitive capabilitylist_scoped_keysno sensitive capabilitylist_webhook_deliveriesno sensitive capabilitylist_webhooksno sensitive capabilityrelease_eventno sensitive capabilityrevoke_scoped_keyno sensitive capabilityset_availability_rulesno sensitive capabilitysubscribe_icalno sensitive capabilitysync_ical_subscriptionno sensitive capabilityupdate_agentno sensitive capabilityupdate_calendarno sensitive capabilityupdate_eventno sensitive capabilityupdate_ical_subscriptionno sensitive capability
Toxic flows 1
Cross-tool combinations that form a data-exfiltration primitive (untrusted input → sensitive source → external sink).
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v1.0.0 latest |
A 97/100 | 3 | 1.12.1 | 2026-07-27 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
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