MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Automation & workflows

Mailrith Email Marketing

Manage Subscribers, Broadcasts, Sequences, Automations, and reporting in Mailrith.

Checks passed
15 / 22

0 failed · 7 not measured

Median response
1069 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
55

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
103
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
402

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 1074 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name mailrith.

  • Pass
    Lists tools

    tools/list returned 55 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 1069 ms over 2 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 1073 ms over 2 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    2 of 2 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Pass
    Stable tool list

    No tool was removed and no required parameter was added in the last 30 days.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    114 of 114 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-04T17:45:28.369886Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using Mailrith Email Marketing

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http mailrith-email-marketing https://api.mailrith.com/mcp

Capabilities

Tools 55

analytics_create_report

Runs from compact rollups. Ranges through 31 days complete inline; longer ranges are queued. Results expire after 24 hours and never exceed 100 rows. Effect: workspace-change. Retry with the same idempotency_key. Permission: analytics:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
analytics_get_report

Returns one unexpired bounded analytics report by identifier. Permission: analytics:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
automations_create

Creates an automation in the authenticated workspace. Effect: workspace-change. Retry with the same idempotency_key. Permission: automations:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
automations_get

Returns one automation from the authenticated workspace. Permission: automations:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
automations_list

Returns automations in the authenticated workspace. Permission: automations:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
automations_preflight

Checks the saved Automation definition and email delivery prerequisite without running any action. Permission: automations:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
automations_preview_journey

Shows the bounded path a selected Subscriber would take through the current saved conditions without running actions or writing history. Permissions: subscribers:read, automations:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
automations_send_test

Sends up to five selected saved Automation email steps to one explicit test address. This does not start the Automation or run other actions. Effect: external-email. Retry with the same idempotency_key. Permissions: live_actions:write, subscribers:read, automations:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
automations_update

Updates an existing draft or paused Automation. Before changing a running Automation, read it by ID, retain its status in the current task only, pause it, apply the update, and use bounded direct item reads until is_updating is false. Run preflight, return it to running only if it was running before and preflight passes, and verify the final status. If the update fails before changing the Automation, restore its prior running status when preflight passes. If readiness or the prior status cannot be restored, leave it paused and immediately report the failure; never activate an Automation that was not already running. Effect: workspace-change. Retry after reading the current resource state. Permission: automations:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
automations_update_status

Starts, pauses, or returns one Automation to draft without changing its definition. Effect: external-email. Retry after reading the current resource state. Permissions: live_actions:write, automations:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_cancel

Requests cancellation for delivery work that has not reached the provider. Provider-accepted emails cannot be recalled. Repeat the same request with the same idempotency key when the response is lost. Effect: external-email. Retry with the same idempotency_key. Permissions: live_actions:write, broadcasts:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_create

Creates a broadcast draft in the authenticated workspace. Effect: workspace-change. Retry with the same idempotency_key. Permission: broadcasts:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_get

Returns a broadcast draft, scheduled send, active send, or completed send. Permission: broadcasts:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_get_send_progress

Returns bounded delivery progress, current rates, timing, outcome counts, and pause state. Poll until terminal is true; use 5 to 10 second intervals while progress changes and back off to 30 seconds when unchanged. Permission: broadcasts:read. Polling: wait at least 2 seconds, use exponential backoff up to 30 seconds, stop at a terminal state, and stop after 15 minutes. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_list

Returns broadcast drafts, scheduled sends, active sends, and completed sends. Permission: broadcasts:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_preflight

Optionally checks the current Subscriber estimate, provider capacity, sender setup, event tracking, and blocking issues. This diagnostic is not required before starting a durable send. Permission: broadcasts:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_schedule

Schedules a draft for future delivery, or changes the delivery time of an existing scheduled Broadcast. This uses Mailrith's durable scheduled-send path and does not start delivery immediately. Effect: external-email. Retry after reading the current resource state. Permissions: live_actions:write, broadcasts:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_send

Immediately creates durable preparation for a broadcast draft or scheduled send. Mailrith calculates the exact Subscriber total and checks provider readiness in the background before delivery. A 202 response means the durable send was accepted, not that provider delivery is complete. Reuse the same idempotency key if the response is lost. Effect: external-email. Retry with the same idempotency_key. Permissions: live_actions:write, broadcasts:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_send_test

Sends a test message from an existing Broadcast that has a sender. Provide a saved Subscriber ID for personalization; use subscribers_list to find one when needed. The recipient may be any test inbox and does not have to match the saved Subscriber. Effect: external-email. Retry with the same idempotency_key. Permissions: live_actions:write, subscribers:read, broadcasts:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_unschedule

Returns a scheduled Broadcast to draft state before delivery starts. Effect: workspace-change. Retry after reading the current resource state. Permissions: live_actions:write, broadcasts:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
broadcasts_update

Updates an existing Broadcast draft. Scheduled, running, completed, and failed Broadcasts cannot be changed here. Before changing a scheduled Broadcast, read it by ID and retain its scheduled_at in the current task only. If the saved time is no longer safely in the future, ask the user for a new time before unscheduling. Otherwise unschedule it, apply the update, reschedule it for the same time, and verify both status and scheduled_at. If the update fails after unscheduling, restore the unchanged Broadcast to the same future time when possible. If the schedule cannot be restored, leave it as a Draft and immediately report that it will not send; never choose a replacement time without the user. Effect: workspace-change. Retry after reading the current resource state. Permission: broadcasts:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
custom_fields_get

Returns one custom field from the authenticated workspace, including its exact ready-to-use email personalization token. Permission: custom_fields:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
custom_fields_list

Returns a bounded page of custom fields in the authenticated workspace, including each field's exact ready-to-use email personalization token. Permission: custom_fields:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
discovery_get_capabilities

Returns the current workspace context, discovery URLs, shared request conventions, supported webhook events, and public resource operations available to the authenticated bearer credential. Permission: none. API reference: https://mailrith.com/developers/api-reference.

Discovered
email_templates_create

Creates a reusable email template scoped to the authenticated workspace. Effect: workspace-change. Retry with the same idempotency_key. Permission: email_templates:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
email_templates_get

Returns a reusable email template linked to the authenticated workspace. Permission: email_templates:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
email_templates_list

Returns reusable email templates linked to the authenticated workspace. Permission: email_templates:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
email_templates_preview

Renders one template using a saved Subscriber's name, email, and custom fields without sending or saving anything. Permissions: subscribers:read, email_templates:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
email_templates_update

Updates the content or enabled state of an existing email template. Effect: workspace-change. Retry after reading the current resource state. Permission: email_templates:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
segments_get

Returns one saved segment from the authenticated workspace. Permission: segments:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
segments_list

Returns saved segments from the authenticated workspace. Permission: segments:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
segments_preview

Returns subscriber counts for an unsaved segment definition. Include `current_segment_id` when previewing edits to an existing segment so circular segment references are rejected before saving. Permission: segments:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
sender_identities_get

Returns one enabled sender name, address, and provider type by stable identifier. Provider credentials and configuration are never returned. Permission: workspace:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
sender_identities_list

Returns a bounded page of enabled sender names, addresses, and provider types that can be selected for Broadcasts and Sequences. Provider credentials and configuration are never returned. Permission: workspace:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
sequences_create

Creates a sequence in the authenticated workspace. Effect: workspace-change. Retry with the same idempotency_key. Permission: sequences:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
sequences_get

Returns one sequence from the authenticated workspace. Permission: sequences:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
sequences_list

Returns sequences in the authenticated workspace. Permission: sequences:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
sequences_preflight

Checks the saved Sequence, its published emails, and its sender without changing data or sending email. Permission: sequences:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
sequences_preview_journey

Returns the bounded saved email timeline and shows which messages a selected Subscriber is eligible to receive, without enrolling the Subscriber or sending email. Permissions: subscribers:read, sequences:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
sequences_send_test

Sends up to five selected saved Sequence emails to one explicit test address. This does not enroll a Subscriber, start the Sequence, or write delivery activity. Effect: external-email. Retry with the same idempotency_key. Permissions: live_actions:write, subscribers:read, sequences:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
sequences_update

Updates an existing paused Sequence. Before changing a running Sequence, read it by ID, retain its status in the current task only, pause it, apply the update, and use bounded direct item reads until is_updating is false. Run preflight, return it to running only if it was running before and preflight passes, and verify the final status. If the update fails before changing the Sequence, restore its prior running status when preflight passes. If readiness or the prior status cannot be restored, leave it paused and immediately report the failure; never activate a Sequence that was not already running. Effect: workspace-change. Retry after reading the current resource state. Permission: sequences:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
sequences_update_status

Starts or pauses one Sequence without changing its content or delivery settings. Effect: external-email. Retry after reading the current resource state. Permissions: live_actions:write, sequences:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
subscribers_add_tag

Adds the selected Tag to a Subscriber. If the Subscriber already has the Tag, the API returns the Subscriber unchanged. Effect: external-email. Retry after reading the current resource state. Permissions: live_actions:write, subscribers:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
subscribers_add_to_sequence

Adds the selected subscriber to the selected sequence. If the subscriber is already in the sequence, the API returns the subscriber unchanged. Effect: external-email. Retry after reading the current resource state. Permissions: live_actions:write, subscribers:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
subscribers_get

Returns one Subscriber by its stable identifier from the authenticated workspace. Permission: subscribers:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
subscribers_list

Returns subscribers in the authenticated workspace, sorted from newest to oldest. Permission: subscribers:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
subscribers_remove_from_sequence

Removes the selected subscriber from the selected sequence. If the subscriber is not in the sequence, the API returns the subscriber unchanged. Effect: subscriber-change. Retry after reading the current resource state. Permissions: live_actions:write, subscribers:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
subscribers_remove_tag

Removes the selected tag from a subscriber. If the subscriber does not have the tag, the API returns the subscriber unchanged. Effect: external-email. Retry after reading the current resource state. Permissions: live_actions:write, subscribers:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
subscribers_update

Updates profile fields, status, custom fields, tags, or sequence assignments for one subscriber. Fields omitted from the request stay unchanged. Blank optional custom field values also leave saved values unchanged, and filled-in invalid values are rejected. Effect: subscriber-change. Retry after reading the current resource state. Permission: subscribers:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
subscribers_update_status

Changes the delivery status for one Subscriber without changing profile, targeting, or Sequence enrollment fields. Making a Subscriber Active requires consent_evidence; its collected_at value must include the correct UTC offset and must not be later than Mailrith's server time. Effect: external-email. Retry after reading the current resource state. Permissions: live_actions:write, subscribers:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
subscribers_upsert

Creates a new subscriber when the email does not exist in the workspace. If the email already exists, the API updates the existing subscriber unless create_only is true. Effect: external-email. Retry with the same idempotency_key. Permissions: live_actions:write, subscribers:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
tags_create

Creates a new tag in the authenticated workspace. The GDPR consent tag names can be created and applied like other tags when you need to apply consent collected outside Mailrith. Tag-level double opt-in fields are no longer accepted; configure double opt-in on forms and landing pages instead. Effect: workspace-change. Retry with the same idempotency_key. Permission: tags:write. API reference: https://mailrith.com/developers/api-reference.

Discovered
tags_get

Returns one Tag from the authenticated workspace. Permission: tags:read. API reference: https://mailrith.com/developers/api-reference.

Discovered
tags_list

Returns tags in the authenticated workspace. Permission: tags:read. Pagination: use bounded pages and returned cursors. API reference: https://mailrith.com/developers/api-reference.

Discovered
workspace_get

Returns the authenticated workspace profile and mailing context used by broadcasts, sequences, automations, forms, and magic links. Permission: workspace:read. API reference: https://mailrith.com/developers/api-reference.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected1074 ms55
Connected1063 ms55