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FlowCastle

REMOTE · API.FLOWCASTLE.AI · SCANNED AUG 3

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

+9 this week 68 Trust /100

Recent critical change

Authorization (29 Jul 2026). See the changelog before you install this server.

Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →

Endpoint Security63
Transport & Reachability100
Schema Quality & AI Usability67
  • AI-judged instruction clarity (excellent).Pass
  • Context-footprint check failed: tool/resource definitions use about 4284 tokens (~204/item across 21 items; 21 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
  • Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

remote · api.flowcastle.ai

# add to Claude Code
claude mcp add --transport http ai-flowcastle-flowcastle https://api.flowcastle.ai/api/mcp
# ~/.codex/config.toml
[mcp_servers.ai-flowcastle-flowcastle]
url = "https://api.flowcastle.ai/api/mcp"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ai-flowcastle-flowcastle": {
      "type": "remote",
      "url": "https://api.flowcastle.ai/api/mcp",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add ai-flowcastle-flowcastle --url https://api.flowcastle.ai/api/mcp --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  ai-flowcastle-flowcastle:
    url: "https://api.flowcastle.ai/api/mcp"
// mcp.json
{
  "mcpServers": {
    "ai-flowcastle-flowcastle": {
      "type": "http",
      "url": "https://api.flowcastle.ai/api/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 3 Aug 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

  • 1 Aug 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

  • 31 Jul 26 +1
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 30 Jul 26 0
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 29 Jul 26 +5
    • Authorization: unverified → fail critical
    • Tool “apply_actions” rewrote its description, which is the text the model reads security
    • Tool “create_application” rewrote its description, which is the text the model reads security
    • Tool “get_action_schema” rewrote its description, which is the text the model reads security
    • Tool “get_application_context” rewrote its description, which is the text the model reads security
    • Tool “get_block_details” rewrote its description, which is the text the model reads security
    • Tool “get_broadcast_analytics” rewrote its description, which is the text the model reads security
    • Tool “get_broadcast_details” rewrote its description, which is the text the model reads security
    • Tool “get_design_guidelines” rewrote its description, which is the text the model reads security
    • Tool “get_flow_context” rewrote its description, which is the text the model reads security
    • Tool “get_flow_example” rewrote its description, which is the text the model reads security
    • Tool “get_module_catalog” rewrote its description, which is the text the model reads security
    • Tool “get_module_details” rewrote its description, which is the text the model reads security
    • Tool “get_variable_context” rewrote its description, which is the text the model reads security
    • Tool “get_workspace_summary” rewrote its description, which is the text the model reads security
    • Tool “install_module” rewrote its description, which is the text the model reads security
    • Tool “list_applications” rewrote its description, which is the text the model reads security
    • Tool “list_broadcasts” rewrote its description, which is the text the model reads security
    • Tool “search_flow_examples” rewrote its description, which is the text the model reads security
    • Tool “send_message” rewrote its description, which is the text the model reads security
    • Tool “update_application” rewrote its description, which is the text the model reads security
    • Tool “validate_actions” rewrote its description, which is the text the model reads security
    • Tool “apply_actions” is now declared destructive security
    • Schema quality: pass → fail functional
    • Tool coverage: 0% → 100% functional
    • Schema quality: good → excellent functional
    • “apply_actions” reworded the description of “actions” cosmetic
    • “apply_actions” reworded the description of “applicationId” cosmetic
    • “apply_actions” reworded the description of “conversationId” cosmetic
    • “apply_actions” reworded the description of “flowId” cosmetic
    • “create_application” reworded the description of “name” cosmetic
    • “create_application” reworded the description of “preferredLanguage” cosmetic
    • “create_application” reworded the description of “skipDefaultFlows” cosmetic
    • “get_application_context” reworded the description of “applicationId” cosmetic
    • “get_block_details” reworded the description of “applicationId” cosmetic
    • “get_block_details” reworded the description of “blockId” cosmetic
    • “get_block_details” reworded the description of “flowId” cosmetic
    • “get_broadcast_analytics” reworded the description of “applicationId” cosmetic
    • “get_broadcast_analytics” reworded the description of “broadcastId” cosmetic
    • “get_broadcast_analytics” reworded the description of “endDate” cosmetic
    • “get_broadcast_analytics” reworded the description of “startDate” cosmetic
    • “get_broadcast_details” reworded the description of “applicationId” cosmetic
    • “get_broadcast_details” reworded the description of “broadcastId” cosmetic
    • “get_flow_context” reworded the description of “applicationId” cosmetic
    • “get_flow_context” reworded the description of “flowId” cosmetic
    • “get_flow_example” reworded the description of “id” cosmetic
    • “get_flow_example” reworded the description of “includeSchemaExample” cosmetic
    • “get_module_catalog” reworded the description of “applicationId” cosmetic
    • “get_module_details” reworded the description of “applicationId” cosmetic
    • “get_module_details” reworded the description of “moduleKey” cosmetic
    • “get_module_details” reworded the description of “moduleVersion” cosmetic
    • “get_variable_context” reworded the description of “applicationId” cosmetic
    • “get_variable_context” reworded the description of “includeValues” cosmetic
    • “get_variable_context” reworded the description of “limit” cosmetic
    • “get_variable_context” reworded the description of “query” cosmetic
    • “get_variable_context” reworded the description of “scope” cosmetic
    • “get_workspace_summary” reworded the description of “applicationId” cosmetic
    • “get_workspace_summary” reworded the description of “flowId” cosmetic
    • “install_module” reworded the description of “applicationId” cosmetic
    • “install_module” reworded the description of “moduleKey” cosmetic
    • “install_module” reworded the description of “moduleVersion” cosmetic
    • “list_broadcasts” reworded the description of “applicationId” cosmetic
    • “list_broadcasts” reworded the description of “botId” cosmetic
    • “list_broadcasts” reworded the description of “isRecurring” cosmetic
    • “list_broadcasts” reworded the description of “limit” cosmetic
    • “list_broadcasts” reworded the description of “page” cosmetic
    • “list_broadcasts” reworded the description of “status” cosmetic
    • “search_flow_examples” reworded the description of “limit” cosmetic
    • “search_flow_examples” reworded the description of “query” cosmetic
    • “search_flow_examples” reworded the description of “tags” cosmetic
    • “send_message” reworded the description of “applicationId” cosmetic
    • “send_message” reworded the description of “botId” cosmetic
    • “send_message” reworded the description of “contactId” cosmetic
    • “send_message” reworded the description of “platformId” cosmetic
    • “send_message” reworded the description of “text” cosmetic
    • “update_application” reworded the description of “applicationId” cosmetic
    • “update_application” reworded the description of “defaultLanguage” cosmetic
    • “update_application” reworded the description of “incomingMessageBehavior” cosmetic
    • “update_application” reworded the description of “incomingMessageFlowId” cosmetic
    • “update_application” reworded the description of “isActive” cosmetic
    • “validate_actions” reworded the description of “actions” cosmetic
    • “validate_actions” reworded the description of “applicationId” cosmetic
    • “validate_actions” reworded the description of “conversationId” cosmetic
    • “validate_actions” reworded the description of “flowId” cosmetic
    • “update_application” reworded the description of “name” cosmetic
  • 28 Jul 26 +1
    • Schema quality: 57 → 65 functional
    • New tool “send_message” functional
  • 27 Jul 26 0
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 26 Jul 26 59

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Probed https://api.flowcastle.ai/api/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_256_GCM_SHA384 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=api.flowcastle.ai CN=YR2,O=Let's Encrypt,C=US 15 Jun 2026 13 Sept 2026 RSA 2048 SHA256-RSA 657004b09efcce44abed69023adff461686
SANs: api.flowcastle.ai, flowcastle.ai, www.flowcastle.ai
CN=YR2,O=Let's Encrypt,C=US (CA) CN=Root YR,O=ISRG,C=US 3 Sept 2025 2 Sept 2028 RSA 2048 SHA256-RSA 4ebd24947e24d394802d84a52fd5b319
CN=Root YR,O=ISRG,C=US (CA) CN=ISRG Root X1,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 RSA 4096 SHA256-RSA f24b6d17f9d9ad7cb1c9fea78782699f
DNSSEC insecure

Validation of api.flowcastle.ai. Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
ai. present 3799 8 Verified
flowcastle.ai. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=15724800; includeSubDomains
Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://api.flowcastle.ai/api/mcp Verified 200
http (plaintext) http://api.flowcastle.ai/api/mcp HTTPS enforced 308 https://api.flowcastle.ai/api/mcp
MCP tools — 21 exposed · ~4,284 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens
apply_actions ~443

Validate and apply a batch of flow-builder actions — the single write path for editing flows, blocks, variables, broadcasts, sequences, and folders. Call this directly; a separate validate_actions call beforehand is unnecessary. DESTRUCTIVE: the batch may include delete_block, delete_link, delete_flow, and delete_variable. Confirm with the user before applying deletions. IRREVERSIBLE SIDE EFFECTS: run_operation starts a real operation run, which may send broadcasts to real contacts and write application variables. It cannot be undone or recalled, is not idempotent, and is available only through this tool — confirm with the user before applying a batch containing one, and never blindly retry a timed-out call that did. Validation always runs first and an invalid batch applies nothing. Execution is NOT atomic, however: if an action fails mid-batch, the actions before it stay applied and execution stops — re-read state with get_flow_context before retrying rather than blindly resending the batch. Not idempotent — resending a batch of create_* actions creates duplicates. Read get_action_schema for the action contract and get_design_guidelines before any structural edit. Returns { success, changes, errors, warnings, actionId } plus an idRemap mapping placeholder ids to the real ids that were created.

NameTypeReqDescription
actionsarrayyesOrdered batch of at least one action, applied in array order. An invalid batch is rejected up front and applies nothing, but execution itself is NOT atomic: if an action fails mid-batch, execution st…
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
conversationIdstringOptional id used to group the resulting audit records under one editing session.
flowIdstringDefault flow id for actions in the batch that do not carry their own. Optional when every action targets an explicit flow.

No output schema declared.

No examples provided.

create_application ~177

Create a new application (workspace) owned by the caller. Requires a personal API key (usr_...) — application-scoped keys cannot create applications. Seeds default flows unless skipDefaultFlows is true. Creates persistent state and is NOT idempotent: calling it twice creates two applications. Returns the new application id, which you then pass as applicationId to the other tools.

NameTypeReqDescription
namestringDisplay name for the new application. Defaults to a localized "My First Application" when omitted or blank.
preferredLanguagestringLanguage for the seeded default flows and the default name. Only "en", "ru", and "es" are supported — any other value silently falls back to "en".
skipDefaultFlowsbooleanSet true to create an empty application with no seeded starter flows. Defaults to false.

No output schema declared.

No examples provided.

get_action_schema ~105

Return the action-authoring contract: every supported action kind with its required fields, the placeholder ids for referencing entities created earlier in the same batch, the `{{var|...}}` / `{{sysvar|...}}` / `{{out|...}}` reference syntax, and the creatable block types. Read-only, takes no arguments, and needs no API key. Read this before drafting any apply_actions batch — it is the schema those actions are validated against.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_application_context ~142

Return the full application-level automation context in one read-only call: every flow (with folders), connected bots, variables, sequences, and operations. This is the broad orientation call — prefer get_workspace_summary when you only need names and counts, since this response grows with workspace size. Operation graphs are hidden flows and appear only in the operations list, never in flows.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…

No output schema declared.

No examples provided.

get_block_details ~191

Return the complete contents of one block: block data, action configs, HTTP request bodies, custom-code files, triggers, menu payloads, and media paths. Read-only. This is the heaviest read in the API — call get_flow_context first to find the block you need rather than walking a flow block by block. Always read a block before updating it, since update_block replaces the fields you send.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
blockIdstringyesRequired. Block id, as listed by get_flow_context for that flow.
flowIdstringyesRequired. Id of the flow that owns the block.

No output schema declared.

No examples provided.

get_broadcast_analytics ~219

Return engagement analytics for a broadcast: delivery breakdown by status plus per-message-block sent and clicked counts for its flow, over an optional date window. Read-only. Sent counts reflect messages attempted, not confirmed deliveries.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
broadcastIdstringyesRequired. Broadcast id, as returned by list_broadcasts.
endDatestringEnd of the reporting window, same format as startDate. Defaults to now.
startDatestringStart of the reporting window, as a date string parsable by Date (ISO 8601 such as "2026-07-01" or "2026-07-01T00:00:00Z" is safest). Defaults to the broadcast's creation time.

No output schema declared.

No examples provided.

get_broadcast_details ~143

Return full details for a single broadcast: status, schedule, recurrence rule, linked flow, and delivery breakdown by status. Read-only. Call list_broadcasts first to find the broadcastId. For per-message-block engagement stats use get_broadcast_analytics instead.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
broadcastIdstringyesRequired. Broadcast id, as returned by list_broadcasts.

No output schema declared.

No examples provided.

get_design_guidelines ~93

Return the flow-design rules that validation does NOT enforce: when to split a branch into its own flow, how navigation and menus must be wired, and worked examples. Read-only, takes no arguments, and needs no API key. Read this before any structural edit (new blocks, new branches, new flows) — a batch can pass validate_actions and still be badly structured, and these rules are what catch that.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_flow_context ~158

Return one flow's graph topology: its blocks, how they link, and a short summary per block. Read-only. Deliberately omits block data and action configs to stay cheap — once you know which block matters, call get_block_details for its full contents. This is the normal first step before editing an existing flow.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
flowIdstringyesRequired. Flow id, as returned by get_workspace_summary or get_application_context.

No output schema declared.

No examples provided.

get_flow_example ~105

Return one reusable flow example by id, optionally with a complete action batch you can adapt and pass to apply_actions. Read-only, needs no API key. Call search_flow_examples first to find the id.

NameTypeReqDescription
idstringyesRequired. Example id exactly as returned by search_flow_examples.
includeSchemaExamplebooleanSet true to include the full action-batch example — much larger, but it is the part you adapt for apply_actions. Defaults to false.

No output schema declared.

No examples provided.

get_module_catalog ~152

Return a compact index of both installed and available marketplace modules, with each module's key, versions, description, actions, and triggers. Read-only. Start here when you need a capability the core action kinds do not cover; then call get_module_details for the exact input fields of one module, and install_module to add it. Returns a summary only — action input fields and setup requirements come from get_module_details.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…

No output schema declared.

No examples provided.

get_module_details ~228

Return everything needed to use one module: action input fields and their types, trigger configuration, manual setup fields (credentials an operator must fill in the dashboard), and references to already-installed actions. Read-only. Call get_module_catalog first to obtain moduleKey, and call this again after install_module to read the installed action references you need when drafting actions. An unknown moduleKey does not raise — the response carries an `error` string plus `availableModules` listing valid keys and versions.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
moduleKeystringyesRequired. The module's stable key exactly as returned by get_module_catalog (not its display name).
moduleVersionstringPin a specific version. Omit to resolve the installed version when the module is installed, falling back to the marketplace entry for that key.

No output schema declared.

No examples provided.

get_variable_context ~272

Search variable definitions by scope and keyword. Read-only. Returns { variables, total, returned, truncated } — compare returned against total to detect a cut-off result set and re-call with a higher limit. Values are withheld unless includeValues is true; variables marked secret stay redacted either way. Use the returned ids in `{{var|<id>}}` references.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
includeValuesbooleanSet true to include stored values, each previewed to 500 characters. Defaults to false — leave it off unless you need the data, since values may hold personal data. Secret variables remain redacted r…
limitnumberMaximum variables to return. Defaults to 30; values above 50 are clamped to 50.
querystringCase-insensitive substring filter matched against the variable name, full path, description, type, and scope. Omit to list without filtering.
scopestringRestrict to one variable scope. Defaults to "all".

No output schema declared.

No examples provided.

get_workspace_summary ~166

Return a compact application, flow, sequence, operation, and bot summary — the cheapest way to orient in a workspace. Read-only, no side effects. Deliberately omits variables and full flow graphs: use get_variable_context for variables, get_flow_context for a flow's topology, and get_application_context when you need flows, bots, and variables together.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
flowIdstringNarrow the summary to one flow. Omit to summarize every flow in the application.

No output schema declared.

No examples provided.

install_module ~218

Install an exact marketplace module version into an application and create any missing installed-template actions. Requires the manage_automation permission. Call get_module_catalog first to select the module and version, then get_module_details after installation to inspect setup requirements and installed action references. Safe to re-run: installing a version that is already installed only fills in missing template actions rather than duplicating them. Modules with manual setup fields still need an operator to enter credentials in the dashboard before their actions will run.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
moduleKeystringyesRequired. The module's stable key from get_module_catalog.
moduleVersionstringyesRequired — the exact version string to install, as listed by get_module_catalog. There is no implicit "latest"; pick a concrete version.

No output schema declared.

No examples provided.

list_applications ~90

List the applications this API key can access, with the caller role and the permissions it grants. Start here when using a personal API key (usr_...): every other tool needs an explicit applicationId, which this tool supplies. Read-only, takes no arguments. Returns an array of { id, name, role, permissions }; an empty array means the key is valid but belongs to no application yet.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

list_broadcasts ~217

List broadcasts in the application with status, schedule, and delivery counts. Read-only. Filters combine as AND. Note that delivery counts report messages attempted, not confirmed deliveries. Use get_broadcast_details for one broadcast's full breakdown.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
botIdstringOnly broadcasts belonging to this bot. Omit for all bots in the application.
isRecurringbooleanTrue for recurring broadcasts only, false for one-off only. Omit for both.
limitnumberBroadcasts per page, between 1 and 100.
pagenumber1-based page number. Defaults to 1.
statusstringOnly broadcasts in this lifecycle state. Omit for all states.

No output schema declared.

No examples provided.

search_flow_examples ~173

Search the library of reusable flow examples covering common business cases (lead capture, onboarding, payments, reminders). Read-only, needs no API key. Returns compact matches — id, title, summary, tags — with no flow body; pass an id to get_flow_example for the full example. Calling it with no arguments returns the top examples, and a query matching nothing returns an empty list rather than an error.

NameTypeReqDescription
limitnumberMaximum examples to return, between 1 and 8. Values outside that range are rejected.
querystringFree-text keyword matched against example titles, summaries, and tags. Omit to browse without filtering.
tagsarrayArray of tag strings to filter by, e.g. ["payments","onboarding"]. Combined with query when both are given.

No output schema declared.

No examples provided.

send_message ~449

Send a plain-text message to ONE contact right now, outside any flow. For reaching many contacts use a broadcast instead. Target the contact with contactId (globally unique — preferred), or with platformId (the platform-side id, e.g. the Telegram user id). platformId is NOT globally unique: it is unique only per bot, so the same Telegram user talking to two of your bots is two contacts sharing one platformId. Pass botId alongside it whenever the application has more than one bot; without botId the call succeeds only if exactly one contact in the application matches, and otherwise fails listing the candidate bots. `{{var|name}}` placeholders in the text resolve against that contact's variable context. Requires the manage_broadcasts permission. Delivery is asynchronous: a successful response means the bot accepted the send, not that the platform delivered it. Unsubscribed contacts are rejected. NOT idempotent and not reversible — each call sends another message to a real person, and a sent message cannot be recalled. Confirm the recipient and text with the user before calling, and never retry a timed-out call blindly.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
botIdstringBot to send from. Required in practice when targeting by platformId in a multi-bot application; without it the call succeeds only if exactly one contact matches, and otherwise fails listing the candi…
contactIdstringPreferred way to target the recipient: the globally unique FlowCastle contact id. Supply either this or platformId.
platformIdstringPlatform-side user id (e.g. the Telegram user id). NOT globally unique — unique only per bot — so pass botId alongside it when the application has more than one bot.
textstringyesRequired. Plain-text message body, must be non-empty. `{{var|name}}` placeholders resolve against the recipient's variable context.

No output schema declared.

No examples provided.

update_application ~269

Update application-level settings (name, active state, default language, incoming-message behavior). Requires the manage_settings permission in that application. Only the fields you pass are changed; omitted fields keep their current value, so the call is idempotent. Returns the updated application.

NameTypeReqDescription
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
defaultLanguagestringDefault language for new flows. Only "en", "ru", and "es" are supported; any other value falls back to "en".
incomingMessageBehaviorstringWhat happens to an inbound message that matches no trigger: LIVE_CHAT routes it to a human operator, EXECUTE_FLOW runs the flow named by incomingMessageFlowId.
incomingMessageFlowIdstringFlow to run for unmatched inbound messages. Required in practice when incomingMessageBehavior is EXECUTE_FLOW.
isActivebooleanSet false to deactivate the application — its bots stop responding. Omit to leave unchanged.
namestringNew display name. Omit to leave unchanged.

No output schema declared.

No examples provided.

validate_actions ~274

Dry-run validation of a proposed batch of flow-builder actions. Mutates nothing and is safe to repeat. OPTIONAL: apply_actions runs this exact validation itself and applies nothing when invalid, so calling validate_actions first is redundant — use it only to check a draft you do not intend to apply yet. Returns the same errors and warnings apply_actions would report. Note that passing validation does not mean the design is sound; structural rules live in get_design_guidelines.

NameTypeReqDescription
actionsarrayyesOrdered batch of at least one action, applied in array order. An invalid batch is rejected up front and applies nothing, but execution itself is NOT atomic: if an action fails mid-batch, execution st…
applicationIdstringApplication (workspace) id. Optional: an application-scoped key (app_...) defaults to its own application, but a personal key (usr_...) has no default and omitting it fails with MCP_APPLICATION_REQUI…
conversationIdstringOptional id used to group the resulting audit records under one editing session.
flowIdstringDefault flow id for actions in the batch that do not carry their own. Optional when every action targets an explicit flow.

No output schema declared.

No examples provided.