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Relin MCP Server

by earonesty Your server? Claim it
answering

Relin is answering right now. Last checked 9 min ago. It exposes 53 tools.

Send and receive webhooks, manage customer endpoints, and inspect and retry deliveries.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 90 days of history · worst day 93%
90 days agonow
100.0%
Uptime 24h
91 of 91 checks
53
Tools
read from the server
380 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 22

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 12 October 2026. No other catalogue keeps this.

12 Oct 21 tool descriptions were rewritten archive_source, create_app, create_endpoint and 18 more
12 Oct a tool appeared get_webhook_setup_status

Relin missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

run in your terminal
claude mcp add relin --transport http https://relin.app/mcp
Settings → Connectors → Add custom connector, then paste this address
https://relin.app/mcp
~/.codex/config.toml
[mcp_servers.relin]
url = "https://relin.app/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "relin": {
      "url": "https://relin.app/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "relin": {
      "type": "http",
      "url": "https://relin.app/mcp"
    }
  }
}

Available tools 53

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

portal
check_portal_host
Authenticated tool for refreshing hostname, certificate, and OIDC readiness for a stable portal host.
create_portal_host
Configure a customer webhook portal on a domain the user controls, with their existing OpenID Connect identity provider. Use only when the user asks to set up a portal domain and supplies the application and identity-provider configuration. This creates portal access configuration and may provision a hostname and certificate.
create_portal_session
Create a temporary customer webhook portal link for the specified app and recipient. The link grants access to that customer’s webhook controls; share only with the intended user.
get_portal_settings
Authenticated tool for reading portal branding defaults and host setup for an app.
list_portal_hosts
Authenticated tool for listing stable portal hosts for an app.
endpoint
create_endpoint
Add an HTTPS webhook endpoint for a customer of an outbound app. Configure event subscriptions and retry settings using the requested customer and URL.
delete_endpoint
Disable a customer webhook endpoint so it no longer receives events.
get_endpoint
Read a customer webhook endpoint, its event subscriptions, and delivery settings.
update_endpoint
Change a customer webhook endpoint URL, event subscriptions, signing settings, retry policy, or enabled state. Changes can interrupt or redirect future deliveries.
event
delete_event_type
Archive an outbound event type so customers can no longer select it for new subscriptions.
get_event_detail
Authenticated tool for reading one event with attempts, deliveries, and optional raw payload.
list_event_types
List the event types customers can subscribe to for an outbound app.
replay
replay_event
Authenticated tool for queueing a replay of a single received event.
replay_events
Authenticated tool for queueing replay by source, query, signature status, failed-delivery state, and time window.
replay_message
Send an existing outbound webhook message again. May repeat actions at customer endpoints; use only for the message the user wants replayed.
alert
create_alert_channel
Authenticated tool to create alert channel.
list_alert_channels
Authenticated tool to list alert channels.
api
create_api_key
Authenticated tool to create API key.
list_api_keys
Authenticated tool to list API keys.
app
create_app
Create an outbound webhook application for a product or environment. Use when the user needs a new set of customer webhook endpoints.
get_app
Read an outbound webhook application by its app ID to inspect its configuration.
message
get_message
Read one outbound webhook message and its delivery state using the app and message IDs.
list_message_attempts
Inspect delivery attempts for an outbound webhook message, including returned status and errors. Use this to verify delivery or diagnose failures.
retry
list_retry_jobs
Authenticated tool to list retry jobs.
retry_failed_deliveries
Authenticated tool for queueing immediate retries for failed fanout deliveries.
rotate
rotate_endpoint_secret
Authenticated tool for rotating the signing secret for one endpoint.
rotate_source_token
Authenticated tool for rotating an ingest token and returning the replacement URL once.
upsert
upsert_event_type
Create or update an outbound event type and its description for customer webhook subscriptions.
upsert_recipient
Authenticated tool for creating or updating a recipient.
apps
list_apps
List outbound webhook applications in the connected Relin workspace. Use this to find the app ID before managing customer endpoints or sending events.
archive
archive_source
Delete an incoming webhook source and its stored records, stop intake and delivery, and cancel its queued retries. Use only when the user intends to remove that source.
cancel
cancel_queued_retries
Authenticated tool for cancelling queued retry jobs for a workspace or destination.
delivery
list_delivery_attempts
Authenticated tool for listing fanout delivery attempts with filters.
describe
describe_relin
Explain what Relin does and how agents should use it for webhook intake, delivery, replay, and anomaly review.
destination
create_destination
Authenticated tool for creating an outbound destination and connection with retry policy and optional filters.
destinations
list_destinations
Authenticated tool for listing outbound destinations and retry policy.
endpoints
list_endpoints
List customer webhook endpoints and delivery settings for an outbound app.
ensure
ensure_webhook_setup
Set up incoming webhooks and delivery rules. For Stripe, returns the account authorization link and connection status; after authorization, use get_webhook_setup_status to verify receipt and delivery. Other providers receive an ingest URL for new sources.
messages
list_messages
List outbound webhook messages for an app, optionally filtered by customer or event type. Use this for send history rather than incoming vendor events.
metrics
get_metrics_summary
Authenticated tool for delivery, failure, duplicate, and open-issue rollups.
open
list_open_issues
Authenticated tool for listing open anomaly and delivery issues. Use q for smart lookup by anom_, dst_, evt_, or src_ IDs, or plain text like a status code or error message.
recent
list_recent_events
Authenticated tool for inspecting recent received events, duplicates, and signature status.
recipients
list_recipients
List customers configured to receive outbound webhooks for an app. Use returned customer identifiers for endpoint and message operations.
resolve
resolve_anomalies
Authenticated tool for marking one or more open anomalies resolved by anomaly_id.
revoke
revoke_api_key
Authenticated tool to revoke API key.
save
save_portal_settings
Authenticated tool for saving portal branding defaults for an app.
send
send_message
Send a webhook event from an outbound app to the specified customer. Requires the intended app, recipient, event type, and payload. Delivery can trigger actions at customer endpoints; an accepted message is not proof of delivery.
setup
get_setup_guide
Return concise setup guidance for connecting a webhook source and destination.
slack
get_slack_connect_url
Authenticated tool for returning the dashboard Slack OAuth connect URL and expected redirect URL.
source
create_source
Authenticated tool to create source.
sources
list_sources
Authenticated tool to list sources.
supported
list_supported_webhook_shapes
List the vendor webhook shapes Relin understands for event identity, ordering, and gap checks.
webhook
get_webhook_setup_status
Check a source's provider connection, enabled destinations, recent signature-verified events, and delivery attempts. For Stripe, returns a secure authorization link when needed. Call again after the user connects, without recreating or rotating anything.

Endpoints

URLTransportStateLatencyChecked
https://relin.app/mcp streamable-http answering 308 ms 9 min ago

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Relin — questions

Answers built from our own checks of this server.

What can Relin do?
It exposes 53 tools, read directly from the server on our last check. Among them: archive_source, cancel_queued_retries, check_portal_host, create_alert_channel, create_api_key, create_app and 47 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
What is Relin mostly used for?
Its tools cluster around portal, endpoint and replay. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Relin working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 380 ms. The bar chart above shows every period we have measured.
Is Relin still maintained?
The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.
How do I connect Relin?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Relin need an API key?
No. Relin completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 53 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Relin?
It answers our handshake in 380 ms on average, which is faster than 35% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.