"Developing a Bulk Email System" matching MCP tools:

• discovery_signup_verify

  Disco

  Complete Disco signup using an email verification code. Call this after discovery_signup returns {"status": "verification_required"}. The user receives a 6-digit code by email — pass it here along with the same email address used in discovery_signup. Returns an API key on success. Args: email: Email address used in the discovery_signup call. code: 6-digit verification code from the email.

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• request_api_key

  Nefesh — Real-Time Human State Awareness for AI

  Request a free Nefesh API key. No existing API key needed for this call. IMPORTANT: You MUST ask the user for their real email address before calling this tool. Do NOT invent, guess, or generate an email address. The user will receive a verification link they must click to activate the key. Without clicking that link, no API key will be issued. Disposable or temporary email services are blocked. Example prompt to the user: "What is your email address? You will receive a verification link to activate your free API key." Flow: call this with the user's real email, then poll check_api_key_status every 10 seconds until status is 'ready'. Free tier: 1,000 calls/month, all signal types, 10 req/min. No credit card.

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• discovery_login_verify

  Disco

  Complete login and receive a new API key. Call this after discovery_login returns {"status": "verification_required"}. The user receives a 6-digit code by email — pass it here along with the same email address. Returns a new API key on success. Args: email: Email address used in the discovery_login call. code: 6-digit verification code from the email.

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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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• resend_verification

  Unphurl

  Resend the email verification link for an existing Unphurl account. Use this when a user signed up but their verification link expired (links are valid for 24 hours) and they need a new one. The user's API key won't work until their email is verified. For security, the response is always the same regardless of whether the email exists, is already verified, or was rate limited. This prevents account enumeration. Rate limited to 3 requests per email per hour. This tool does not require an API key.

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• discovery_signup

  Disco

  Create a Disco account and get an API key. Provide an email address to start the signup flow. If email verification is required, returns {"status": "verification_required"} — the user will receive a 6-digit code by email, then call discovery_signup_verify to complete signup and receive the API key. The free tier (10 credits/month, unlimited public runs) is active immediately. No authentication required. Returns 409 if the email is already registered. Args: email: Email address for the new account. name: Display name (optional — defaults to email local part).

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• setup_account

  Hatchable

  Associate an email and handle with your account. Step 1: Call with just email — sends a 6-digit verification code. Step 2: Call with email + code + handle — verifies and completes setup. This lets you log in to the console and sets your permanent @handle.

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• share_workspace

  Dock

  Invite a human (by email) to a workspace at a specified role. If the email already belongs to a Dock user they're added immediately and a notification email is sent; if not, a 7-day invite token is minted that auto-accepts on magic-link sign-in. Editor role required on the workspace. Emits `member.joined` (existing user) or `member.invited` (new user). Use update_workspace_member to change a role afterwards, remove_workspace_member to revoke.

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• discovery_login

  Disco

  Get a new API key for an existing Disco account. Sends a 6-digit verification code to the email address. Call discovery_login_verify with the code to receive a new API key. Use this when you need an API key for an account that already exists (e.g. the key was lost or this is a new agent session). Returns 404 if no account exists with this email — use discovery_signup instead. Args: email: Email address of the existing account.

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• todo

  Fast.io

  Todo checklists scoped to workspaces and shares: list, create, update, toggle, delete, bulk-toggle, filter, summary. Call action='describe' for the full action/param reference. Destructive: delete.

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• execute_integration

  mcp

  Execute an integration action — e.g., send an email via Resend, create a payment via Mollie. The system resolves vault credentials server-side so you never handle API keys directly. The integration must be configured first via setup_integration (not needed for built-in integrations). Call get_integration_schema first to get the exact endpoint name and required input fields.

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• chieflab_send_approved_email

  ChiefLab

  [chieflab_* alias of chiefmo_send_approved_email] Send an approved launch email through the email sending rail (current adapter: resend). USE WHEN the user has approved an email publishAction from chiefmo_launch_product and you need to fire the send. Strict approval gate (same shape as chiefmo_publish_approved_post). `from` MUST be on a domain verified at the adapter (resend.com) — check chieflab_list_email_senders first. Single recipient or short list (≤50). Money/external-system action — once sent cannot be unsent.

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• get_email

  gmail

  Retrieve the complete content of a specific email using its ID from search_email. Use this to read the full email body (text or HTML), see all recipients (to, cc, bcc), and access the complete headers. This is necessary after search_email since search only returns snippets, not the actual email content.

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• auth_start

  Chia Health MCP

  Start a patient session by providing their contact information. Sends a 6-digit verification code to the patient's email. Returns a session_id (NOT a token). The session_id is used with auth_verify_otp to prove email ownership and get a bearer token. The code is in the email subject line: 'Chia Health: Your code is XXXXXX'. If you have access to the patient's email (e.g. Gmail MCP), search for this subject. No authentication required. Call this when the patient is ready to proceed with their medical intake — after browsing medications and checking eligibility.

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• tables_list

  runik-ai

  List all available tables in the business system

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• auth_start

  Chia Health MCP Server

  Start a patient session by providing their contact information. Sends a 6-digit verification code to the patient's email. Returns a session_id (NOT a token). The session_id is used with auth_verify_otp to prove email ownership and get a bearer token. The code is in the email subject line: 'Chia Health: Your code is XXXXXX'. If you have access to the patient's email (e.g. Gmail MCP), search for this subject. No authentication required. Call this when the patient is ready to proceed with their medical intake — after browsing medications and checking eligibility.

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• draft_email

  gmail

  Create a new email draft saved to the Drafts folder. Use this when composing an email to review or send later. The draft can be sent using send_draft. Plain text is automatically formatted with markdown. Optionally provide HTML for rich formatting.

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• calculate_inverter_size

  VoltPlan Wiring Diagrams

  Calculate the recommended inverter size for running AC loads from a DC battery system. Accounts for continuous power, startup surge power (motors typically surge 2-3x), and includes a 25% headroom for the continuous rating. Returns the recommended inverter wattage and the DC current draw at system voltage.

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• chieflab_send_approved_email

  ChiefLab

  [chieflab_* alias of chiefmo_send_approved_email] Send an approved launch email through the email sending rail (current adapter: resend). USE WHEN the user has approved an email publishAction from chiefmo_launch_product and you need to fire the send. Strict approval gate (same shape as chiefmo_publish_approved_post). `from` MUST be on a domain verified at the adapter (resend.com) — check chieflab_list_email_senders first. Single recipient or short list (≤50). Money/external-system action — once sent cannot be unsent.

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• validate_pix_key

  LatAm Business Tools

  Validates a Brazilian PIX key — the instant payment identifier used by Brazil's central bank payment system (Banco Central do Brasil). Supports all 4 PIX key types: CPF (11 digits), CNPJ (14 digits), email address, phone number (+55 format), and EVP (random UUID key). Returns { valid: boolean, type: 'cpf'|'cnpj'|'email'|'phone'|'evp', key: string } or { valid: false, reason: string }. Use when processing PIX transfers, validating payment recipients, or building Brazilian payment flows in AI agents.

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