FlowCastle MCP Server

https://api.flowcastle.ai/api/mcp Remote v0.1.0

Published by api.flowcastle.ai — no publish provenance and no public repository, so the publisher could not be verified and the source cannot be independently located.

Build, edit, and deploy Telegram bots on FlowCastle's hosted visual flow platform.

Trust grade
A
97/100
Last scanned get badge →
Trust
A · 97/100
Adoption risk for you: the threat score, then adjusted down for blast radius, publisher verification and how much the scan could see. Deterministic; every point is auditable.
Capability
Moderate
Blast radius if it went rogue — what the server’s tools could reach. Independent of trust.
Coverage
Live
How much the scan could actually inspect. Shallow coverage is stated, never hidden.
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A Why this grade threat 100 − adoption risk = 97/100

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:

PointsAdoption-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 1

medium Untrusted input can drive an external actionMTC-FLOW-005

Untrusted-input tools ([import_website_knowledge, read_messages]) co-exist with external-action tools ([sync_dialog_contacts, send_message, send_flow_to_contacts]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.

Evidence: untrusted [import_website_knowledge, read_messages] → sinks [sync_dialog_contacts, send_message, send_flow_to_contacts]

Fix: Require confirmation for state-changing/egress actions triggered after processing untrusted content.

Location: flow import_website_knowledge → sync_dialog_contacts

Tools 41

Each tool and what it can reach — enumerated from the running server.

  • import_website_knowledgeingests untrusted input
  • read_messagesingests untrusted input
  • send_flow_to_contactsnetwork egress
  • send_messagenetwork egress
  • sync_dialog_contactsnetwork egress
  • apply_actionsno sensitive capability
  • create_applicationno sensitive capability
  • create_contactno sensitive capability
  • deploy_applicationno sensitive capability
  • execute_telegram_operationno sensitive capability
Show 31 more tools ↓
  • get_action_schemano sensitive capability
  • get_application_contextno sensitive capability
  • get_block_detailsno sensitive capability
  • get_broadcast_analyticsno sensitive capability
  • get_broadcast_detailsno sensitive capability
  • get_contactno sensitive capability
  • get_contact_activityno sensitive capability
  • get_design_guidelinesno sensitive capability
  • get_flow_contextno sensitive capability
  • get_flow_exampleno sensitive capability
  • get_funnel_analyticsno sensitive capability
  • get_module_catalogno sensitive capability
  • get_module_detailsno sensitive capability
  • get_telegram_operationno sensitive capability
  • get_variable_contextno sensitive capability
  • get_website_importno sensitive capability
  • get_workspace_summaryno sensitive capability
  • install_moduleno sensitive capability
  • list_applicationsno sensitive capability
  • list_broadcastsno sensitive capability
  • list_contactsno sensitive capability
  • list_event_contactsno sensitive capability
  • list_telegram_operationsno sensitive capability
  • list_watched_groupsno sensitive capability
  • run_flow_autotestno sensitive capability
  • search_flow_examplesno sensitive capability
  • search_flowsno sensitive capability
  • set_watched_groupsno sensitive capability
  • update_applicationno sensitive capability
  • update_contactno sensitive capability
  • validate_actionsno 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.

VersionScoreFindingsEngineScanned
v0.1.0 latest A 97/100 1 1.13.0 2026-09-06

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.

MCP Trust Score: A · 97/100
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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.

npx mcptrustchecker scan https://api.flowcastle.ai/api/mcp --online

Use the free API → How scoring works

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