Send transactional emails and manage customer relationships with full audit trails
Transactional email platform with permission-based campaigns, multi-tenant CRM for contacts, companies, pipelines and deals, domain verification, and complete audit logging. Integrates with AWS SES for delivery.
Try asking Muse: "Send a transactional confirmation email from my verified domain and log the delivery event"
Source: Found in the official MCP Registry (com.commsharbor/commsharbor) · First listed September 24, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 h ago.
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://commsharbor.com/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
CommsHarbor is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://commsharbor.com/mcpResponse time at the last check: 690ms. Worked in 99.5% of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
commsharbor_healthRead deployment health and build. Smoke tests wait for their own commit to appear here instead of racing edge propagation.commsharbor_logoutRevoke the current session. Bootstrap/CSRF must belong to this browser and session. Other product sessions remain active.commsharbor_meRead the current account profile and platform role. `user.id` is the shared-account ID. Organizations are not listed here: they live in the shared account, which does not list them inside products yet — open a workspace by its ID with `GET /api/organizations/{organization_id}`.commsharbor_contextResolve the active organization identity. Read this before a write when you are not certain which tenant is active. Guessing is how data lands in the wrong organization. An organization API key answers `kind: api_key` with its scopes.commsharbor_organization_getOpen an organization by id: name, your role and the CommsHarbor plan. This is how a workspace is opened. Name and role come from the shared account (null with an organization API key, which carries neither); the plan is the organization's global entitlement in CommsHarbor.commsharbor_auditList tenant audit events. Audit records are never rewritten and never carry recipient PII.commsharbor_platform_contextConfirm the caller's platform role. Tenant ownership grants nothing here: platform access is a separate, explicit grant.pricingRead plans, prices and x402 network.commsharbor_email_google_catalogRead authorized Google metadata. This does not prove DNS ownership. Requires the owner's account session; an organization key cannot authorize Google access. Requires an account session in this organization. Reads site metadata only. Google access and refresh tokens remain encrypcommsharbor_email_google_connectStart five-minute Google consent with PKCE. Return an authorization URL. Signing in does not grant this access. Requires the owner's account session; an organization key cannot authorize Google access. Requires an account session in this organization. Reads site metadata only. Gocommsharbor_email_google_resolveResolve website addresses for up to 20 selected Analytics properties. Search Console does not use this route. Requires the owner's account session; an organization key cannot authorize Google access. Requires an account session in this organization. Reads site metadata only. Googcommsharbor_email_google_disconnectRemove this product's saved Google connection and pending consent. Existing email and service resources remain intact. Requires the owner's account session; an organization key cannot authorize Google access. Requires an account session in this organization. Reads site metadata ocommsharbor_email_domain_products_listRead or associate PageAudit and HookPulse with a domain in this organization. Native product access must be enabled. Creates no subscription, project or monitor. The private email backend confirms domain ownership in this organization. Selected native products must already be enacommsharbor_email_domain_products_addRead or associate PageAudit and HookPulse with a domain in this organization. Native product access must be enabled. Creates no subscription, project or monitor. The private email backend confirms domain ownership in this organization. Selected native products must already be enacommsharbor_email_workspace_snapshotRead the current email workspace, DNS progress and recent jobs. The ID must match X-Organization-Id. Membership is checked again for each snapshot and delivered event. Events contain only an opaque change ID. DNS checks run in the private backend, with a 24-hour deadline and a vicommsharbor_email_plansRead receive-only trial mailboxes and paid email packages. The trial shares 1 GB for 7 days and cannot send. Monthly packages add sending only after backend activation.commsharbor_email_workspaceRead the email workspace. We operate the mail server and webmail. Your agent manages the authorized domains and mailboxes through the existing service. Check checkout_live, domain readiness and observed sending capability. A payment or accepted job alone does not prove activationcommsharbor_email_trial_activateStart the free receive-only Trial for 7 days, once per organization: 1 GB shared storage, unlimited mailboxes and no outgoing SMTP or external filter forwarding. No card, renewal or charge. After 7 days, writes without a paid plan answer 402 `email_trial_expired`. Requires a new commsharbor_email_domain_setupFind an existing domain. Use it before a purchase. Return its organization and domain IDs only when this exact caller can open that organization. Otherwise return existing: null. This read creates no charge or job. No guest access. Members can read. Owners, admins and organizatiocommsharbor_email_domain_createRegister a domain and its ownership challenge. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_domain_getRead domain setup, DNS records and observed readiness. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_domain_verifyQueue a check of ownership, DNS and certificates. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_domain_assistanceRequest assisted DNS setup. The durable request waits for operator activation. It does not change DNS or expose a provider credential. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Maicommsharbor_email_mailbox_createCreate a mailbox within the current allowance. Trial mailboxes share 1 GB and cannot send email. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content arecommsharbor_email_mailbox_updateChange mailbox name or quota within the plan. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_mailbox_passwordSet the mailbox password. It is encrypted for the executor and is never returned. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returnedcommsharbor_email_mailbox_suspendSuspend access while preserving mailbox data. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_mailbox_resumeRestore suspended mailbox access. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_alias_createCreate an alias to existing mailboxes in this organization. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_alias_updateChange the alias destinations within this organization. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_alias_suspendSuspend an alias without deleting its configuration. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_alias_resumeRestore a suspended alias without changing its destinations. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_job_getRead one durable job in this organization. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_service_requestRequest an included service with activation on demand. No guest access. Members can read. Owners, admins and organization keys can manage email. The private service credential stays on the server. Mailbox passwords and message content are never returned.commsharbor_email_security_checkCheck whether someone can send email as a domain: SPF, DKIM in common selectors, DMARC, MX, MTA-STS and BIMI, with a 0-100 score and the fixes, most severe first. Public DNS only. Free, no account. Public DNS only, no account and no charge. The same domain is served from memory fcommsharbor_brazil_email_reportRead the monthly Brazil email security report: how many domains of city halls, state and federal government, banks and listed companies reject fake email (DMARC p=reject) and how they end SPF. Totals only, public DNS. Free, no account. Public DNS only, read once a month. The sampget_api_x402_email_checkChecks the email security of a domain for an agent, paid per call: SPF, DKIM, DMARC, MX and a score, with no account. The check of `GET /api/email-check`, sold per call to agents, with no account and without the 30 free checks per day before. A request without payment gets the 40https://commsharbor.com/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use CommsHarbor to help me. It is a free service with an MCP server at https://commsharbor.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (November 13, 2026, 12:30 UTC) the endpoint was working, answering in 690ms. Over the last 7 days it answered 96.6% of health checks. It is checked every 15 minutes.
It was screened on September 24, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 37 tools, including commsharbor_health, commsharbor_logout, commsharbor_me, commsharbor_context. For example, you could ask Muse: "Send a transactional confirmation email from my verified domain and log the delivery event"
This listing was added from public sources (Found in the official MCP Registry (com.commsharbor/commsharbor)). If you build CommsHarbor, claim it to correct the details and get your badge.
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