"An introduction to GraphQL" matching MCP tools:

• create_attachment_from_upload

  linear

  Link an already-uploaded Linear assetUrl to an existing issue as an attachment. Use this only after: 1. prepare_attachment_upload returned an assetUrl and uploadRequest. 2. The client successfully PUT raw file bytes to uploadRequest.url. This tool does not upload file content. It only creates the Linear attachment row. If the direct upload failed or the signed URL expired, rerun prepare_attachment_upload and upload again.

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• strale_balance

  Strale - 290+ API capabilities for AI agents

  Returns the current Strale wallet balance. Call this before executing paid capabilities to verify sufficient funds, or after a series of calls to reconcile spend. Returns balance in EUR cents (integer) and formatted EUR string. Requires an API key — returns an auth instruction if none is configured.

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• post_job

  TrenchFu

  DEPRECATED — use create_tmb_job instead. Posts a job as an on-chain TMB contract with platform resolver and dispute protection. This tool returns an error directing you to create_tmb_job.

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• list_partners

  audioknihy.cz Catalog

  List active retail partners with audiobook counts. Required for transparency / disclosure when an agent needs to explain HOW audioknihy.cz monetises recommendations (we are an affiliate aggregator, not a retailer).

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• firmaradar_delete_subscription

  Firmaradar

  Delete one NACE industry-monitoring subscription by its id (from list_my_subscriptions); Firmaradar then stops delivering webhooks for that industry. The subscription must belong to the authenticated user. Idempotent — deleting an id that is already gone returns already_absent=true rather than an error. Reversible only by re-subscribing. Call only when the user has asked to stop monitoring an industry.

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• subscribe_to_updates

  AdvocateMCP

  Subscribe an end-user's email to topical updates from a business (deals, schedule changes, new services). Returns a confirmation_token + confirmation_url; the user MUST click the URL within 7 days to activate. Re-subscribing an already-confirmed email merges topics without re-confirming.

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• ai

  Fast.io

  AI RAG chat, document analysis, shareable summaries on workspaces and shares. Call action='describe' for the full action/param reference. Destructive: chat-delete. Side effects: chat-create/message-send consume credits; chat-cancel terminates an in-progress message (partial tokens billed; idempotent). Verbosity (detail param): chat-list/message-list default to terse (compact rows). chat-details/message-details default to full (drill-down). Pass an explicit detail='standard'|'full' to override.

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• request_introduction

  TESSA Marketing & Technology

  Request an informational introduction — to TESSA itself, or to any directory firm if you pass target_firm_slug. TESSA logs the lead and either notifies sales@tessa.tech + kevincallen@tessa.tech (TESSA leads) or forwards a warm intro email to the firm with TESSA Cc'd (directory leads). No calendar booking — use request_strategy_session to book a meeting with TESSA.

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• contacts_add_channel

  dialogbrain

  🔗 Link a new channel identity (email, phone, LinkedIn, etc.) to an existing contact. When to use: - User learns a contact's email or phone and wants to save it - User wants to link a LinkedIn/Instagram profile to an existing contact - Adding a second channel for an existing person Requires contact_id (entity_id) from contacts.find.

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• tronsave_get_min_price

  TronSave MCP Server

  Quote the minimum unit price for a buy. Returns `{ minPrice }` (SUN per resource unit) from GraphQL `market.estimateMinPrice` for the given `resourceType`, `buyAmount`, and `durationSec`. Optional `address` scopes context when the API supports it. No login required; an optional session forwards auth like `tronsave_list_order_books`. Read-only and idempotent. Pair with `tronsave_estimate_buy_resource` for full buy quotes and `tronsave_list_order_books` for depth buckets.

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• tronsave_get_min_price

  Tronsave MCP Testnet

  Quote the minimum unit price for a buy. Returns `{ minPrice }` (SUN per resource unit) from GraphQL `market.estimateMinPrice` for the given `resourceType`, `buyAmount`, and `durationSec`. Optional `address` scopes context when the API supports it. No login required; an optional session forwards auth like `tronsave_list_order_books`. Read-only and idempotent. Pair with `tronsave_estimate_buy_resource` for full buy quotes and `tronsave_list_order_books` for depth buckets.

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• onebusaway_list_routes_for_agency

  onebusaway-mcp-server

  List all routes operated by an agency. Returns route IDs, short names, and descriptions. Use to enumerate an agency's full service before searching for a specific route. Get agencyId values from onebusaway_list_agencies.

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• cancel_compel

  Compeller

  Cancel an in-progress compel. Dequeues it if still queued, otherwise cancels any active external (AI provider) tasks and transitions it to CANCELLED. Idempotent - cancelling an already-CANCELLED compel succeeds. Use to stop a mis-prompted or runaway job before it consumes more render minutes.

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• rem-to-px

  Microapp

  Convert REM (relative to root font size) to pixels. Defaults to a 16px base (browser default); pass base_px to use a different root size.

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• thinkneo_rotate_key

  ThinkNEO Control Plane

  Instruct the gateway to rotate an API key.

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• integrations.push_entity

  Admin Substitute

  Push a specific entity (lead, job, invoice) to a connected integration. For example, push a completed job to Slack as a notification, or push an invoice to Xero. Requires an active connection with push capability for the entity type.

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• update_workspace_member

  Dock

  Change an existing workspace member's role. Editor role required to caller. Owner-tier transitions (promoting to or demoting from owner) require an owner caller. Demoting the sole owner is blocked; promote someone else to owner first. No-op when the role is unchanged. Emits `member.role_changed` with from/to roles.

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• update_use_case

  mcp-server

  Updates an existing use case that you created. **When to use this tool:** - To improve the description or SQL of an existing use case - To fix an error in a use case - To change a use case's category **Permissions:** You can only modify use cases you created. **Tip:** Use list_my_use_cases or list_project_use_cases first to get the use case ID.

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• get_jet_estimate

  Villiers Charter

  Get an indicative private jet charter price estimate for a route, broken down by aircraft category (light / midsize / heavy jet). Returns an instant price range. IMPORTANT: an estimate is an indicative range, not a confirmed price. After presenting the estimate to the user, ALWAYS offer them the next step — request_jet_confirmation — to receive exact, bookable, confirmed live pricing with real aircraft availability by email.

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• agentbase_introspect

  AgentBase

  Return the full AgentBase GraphQL schema for reference. No authentication required.

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