Ray notifications

io.github.gege-mnPublished by GitHub account gege-mnv0.1.0Updated Oct 24, 2026

Send email, push, Slack, Discord, Telegram and webhook notifications and manage templates with Ray.

VerifiedStreamable HTTPWeb executableProductivity & WorkflowCommunication & Collaboration

Overview

AI-generated overview

Ray's notification delivery MCP server: lets an assistant send email, push, Slack, Discord, Telegram and webhook notifications and manage templates, delivery, a

What you can do
Check the API key's workspace and scopes, and read plan, subscription and monthly quota usage against the limit.
When to use it
Use it when you want an assistant to send or test notifications through Ray, manage message templates, inspect delivery status and click stats, or set up outbound event webhooks.
Requirements
A Ray account and API key (ck_live_...) with read scope, plus write scope for sending and changes; at least one channel configured in the dashboard. Connect to the hosted endpoint with an Authorization bearer header, or run the npm package locally with Node.js 18+ and RAY_API_KEY. Network access to Ray.
Before you install
The key grants access to your Ray workspace; keep it out of version control. Write-scope tools send real notifications and test sends through the provider, create, publish, archive and delete templates, and create or delete webhooks. Webhook creation returns a signing secret once, and rotating it invalidates the old one immediately. Sends count against the monthly quota.

Installation

In SourceWeft

  1. Open Ray notifications in the dashboard and add it to a workspace.
  2. Connect Authorization token credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.gege-mn%2Fray-mcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "ray-notifications": {
      "type": "http",
      "url": "https://ray-api.gege.mn/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

README

Ray MCP server

[npm] [CI] [MIT]

MCP server for Ray, the notification delivery API. It lets Claude, Cursor, VS Code, Windsurf, Codex, Zed and any other MCP client send notifications and manage templates, delivery webhooks and usage in your Ray workspace.

Ray here is the multi-tenant notification API from gege.mn (email via Amazon SES or SMTP, Firebase push, Slack, Discord, Telegram, SMS via Twilio or sendsms.mn, generic webhooks and an in-app feed). It is not the Ray distributed computing framework.

Hosted or local?

Ray runs an MCP server for you. There are two ways to connect, with the same tools:

Hosted (recommended)Local (this package)
What runsNothing on your machinenpx -y @gege-mn/ray-mcp, a stdio process
Endpointhttps://ray-api.gege.mn/mcp (Streamable HTTP)Bridges to the hosted endpoint
AuthAuthorization: Bearer <key> headerRAY_API_KEY environment variable
Use it whenYour client supports remote servers with custom headersYour client only runs stdio servers (e.g. Claude Desktop config file), or you prefer env vars over headers

This package is a thin bridge: it connects to the hosted endpoint with your key and mirrors its tool list, descriptions and instructions, so new tools appear without upgrading the package. All validation, scopes, rate limits and quota are enforced by Ray's API.

1. Get an API key

  1. Sign in at ray.gege.mn and open API keys.
  2. Create a key. It starts with ck_live_ and is shown only once.
    • read scope: status, templates, usage, docs.
    • write scope: also needed to send, create or change templates, and manage webhooks.
  3. Configure at least one channel in the dashboard under Channels. Channel credentials can't be created through the API or MCP.

The examples below use ck_live_... as a placeholder. Keep real keys out of version control.

2. Add Ray to your client

Claude Code

Hosted:

bash
claude mcp add --transport http ray https://ray-api.gege.mn/mcp --header "Authorization: Bearer $RAY_API_KEY"

Local:

bash
claude mcp add ray --env RAY_API_KEY=ck_live_... -- npx -y @gege-mn/ray-mcp

Add --scope user to make it available in every project. Check the connection with claude mcp get ray.

Claude Desktop

Edit claude_desktop_config.json (Settings → Developer → Edit Config; macOS ~/Library/Application Support/Claude/claude_desktop_config.json, Windows %APPDATA%\Claude\claude_desktop_config.json), then fully restart Claude Desktop:

json
{  "mcpServers": {    "ray": {      "command": "npx",      "args": ["-y", "@gege-mn/ray-mcp"],      "env": { "RAY_API_KEY": "ck_live_..." }    }  }}

Cursor

.cursor/mcp.json in a project, or ~/.cursor/mcp.json for all projects.

Hosted:

json
{  "mcpServers": {    "ray": {      "url": "https://ray-api.gege.mn/mcp",      "headers": { "Authorization": "Bearer ck_live_..." }    }  }}

Local:

json
{  "mcpServers": {    "ray": {      "command": "npx",      "args": ["-y", "@gege-mn/ray-mcp"],      "env": { "RAY_API_KEY": "ck_live_..." }    }  }}

Cursor can read the key from your environment instead: "Authorization": "Bearer ${env:RAY_API_KEY}".

VS Code (GitHub Copilot)

VS Code's mcp.json (.vscode/mcp.json in a workspace, or MCP: Open User Configuration) uses a top-level servers key and can prompt for the key so it isn't stored in the file:

json
{  "inputs": [    { "id": "ray-api-key", "type": "promptString", "description": "Ray API key (ck_live_...)", "password": true }  ],  "servers": {    "ray": {      "type": "http",      "url": "https://ray-api.gege.mn/mcp",      "headers": { "Authorization": "Bearer ${input:ray-api-key}" }    }  }}

Local variant: replace the server entry with { "type": "stdio", "command": "npx", "args": ["-y", "@gege-mn/ray-mcp"], "env": { "RAY_API_KEY": "${input:ray-api-key}" } }.

Windsurf

~/.codeium/windsurf/mcp_config.json (Windsurf calls the URL field serverUrl and supports ${env:VAR}):

json
{  "mcpServers": {    "ray": {      "serverUrl": "https://ray-api.gege.mn/mcp",      "headers": { "Authorization": "Bearer ${env:RAY_API_KEY}" }    }  }}

Local: use the same command / args / env entry as in the Cursor example.

Codex

~/.codex/config.toml, local:

toml
[mcp_servers.ray]command = "npx"args = ["-y", "@gege-mn/ray-mcp"]env = { RAY_API_KEY = "ck_live_..." }

Hosted, reading the key from your shell environment:

toml
[mcp_servers.ray]url = "https://ray-api.gege.mn/mcp"bearer_token_env_var = "RAY_API_KEY"

Or from the CLI: codex mcp add ray --env RAY_API_KEY=ck_live_... -- npx -y @gege-mn/ray-mcp.

Zed

In Zed's settings.json:

json
{  "context_servers": {    "ray": {      "url": "https://ray-api.gege.mn/mcp",      "headers": { "Authorization": "Bearer ck_live_..." }    }  }}

Local: "ray": { "command": "npx", "args": ["-y", "@gege-mn/ray-mcp"], "env": { "RAY_API_KEY": "ck_live_..." } }.

Any other client

Any client that runs stdio servers:

json
{  "mcpServers": {    "ray": {      "command": "npx",      "args": ["-y", "@gege-mn/ray-mcp"],      "env": { "RAY_API_KEY": "ck_live_..." }    }  }}

Any client that supports Streamable HTTP: URL https://ray-api.gege.mn/mcp, header Authorization: Bearer ck_live_....

Environment variables (local package)

VariableRequiredDefaultDescription
RAY_API_KEYyesRay API key (ck_live_...). Whitespace, quotes and a Bearer prefix are stripped.
RAY_MCP_URLnohttps://ray-api.gege.mn/mcpHosted endpoint to bridge to. Only change it for staging or local development.

CLI flags: --help, --version. Requires Node.js 18 or newer.

Tools

The tool list comes from the hosted server, so it can grow over time; your client shows the authoritative descriptions and input schemas. Current tools:

ToolWhat it does
whoamiShows the workspace, key id and scopes of the API key in use.
get_usagePlan, subscription status and this month's usage against the quota.
list_channelsConfigured channels with their ids and the recipient shape each accepts. Call first.
send_notificationSends a notification (single, fan-out, multi-channel or feed-only). Needs write.
get_send_statusDelivery status of a send, with per-recipient rows.
list_templatesLists message templates.
get_templateOne template with its published version and draft.
create_templateCreates a template, optionally publishing it. Needs write.
update_template_draftReplaces a template's draft. Needs write.
publish_templatePublishes a template's draft as the live version. Needs write.
archive_templateArchives a template. Needs write.
unarchive_templateRestores an archived template. Needs write.
test_send_templateSends a real test of a published template to one recipient. Needs write.
list_feed_notificationsReads one end user's in-app notification feed.
get_click_statsEmail link click counts for a send or campaign.
list_webhooksLists outbound event webhooks and their delivery health.
get_webhookOne outbound webhook.
create_webhookCreates an outbound webhook; returns its signing secret once. Needs write.
update_webhookChanges a webhook or rotates its secret. Needs write.
delete_webhookDeletes a webhook. Needs write.
read_docsReads Ray's documentation as markdown.

Read-only tools are annotated readOnlyHint; archive and delete tools are annotated destructiveHint, so clients can ask before running them.

Example prompts

  • "Send a test email to me through Ray."
  • "Which Ray channels do I have, and what recipient does each one need?"
  • "Create and publish a welcome email template in Ray with a firstName param, then test-send it to me."
  • "Did send snd_... get delivered? Show me any failures."
  • "How many notifications have we sent this month, and how much quota is left?"
  • "Set up a Ray webhook to https://example.com/hooks/ray for failed deliveries."

Troubleshooting

The local package always starts, even when something is wrong, and explains the problem through MCP instead of crashing. Diagnostics go to stderr (your client's MCP log); stdout carries only MCP messages.

  • Only a setup_help tool is listed. The server can't load Ray's tools. Its description says why. Without RAY_API_KEY every tool call returns setup steps. If the endpoint was unreachable, call setup_help after fixing the cause: it retries, and on success the client is told the tool list changed. If your client doesn't refresh, reload the server.
  • "Ray rejected the API key (HTTP 401)". The key is wrong, revoked, or was pasted incompletely. Create a new key at ray.gege.mn, update the config and restart the client.
  • "write scope required" or HTTP 403. The key is read-only, or your plan doesn't include the feature (webhooks need Pro or higher). Use a key with the write scope.
  • HTTP 402 / quota. The workspace used its monthly quota. Check with get_usage.
  • HTTP 429. Rate limited; the error says how many seconds to wait. See rate limits.
  • "Could not reach Ray's MCP endpoint (ECONNREFUSED / ENOTFOUND / ...)". Network, proxy or firewall problem, or a wrong RAY_MCP_URL.
  • npx not found or old Node. Install Node.js 18+ and make sure npx is on the PATH your client uses. On macOS GUI apps may not see shell PATH changes; use an absolute path to npx if needed.
  • Check the server by hand: RAY_API_KEY=ck_live_... npx -y @gege-mn/ray-mcp should log connected to https://ray-api.gege.mn/mcp on stderr, then wait for input (Ctrl+C to exit). Or inspect it with npx @modelcontextprotocol/inspector npx -y @gege-mn/ray-mcp.

Related

Development

bash
pnpm installpnpm typecheckpnpm test        # vitest: bridge end to end against an in-process fake Ray endpointpnpm build       # tsup -> dist/index.jspnpm smoke       # the built binary over real stdioRAY_MCP_URL=http://localhost:8787/mcp RAY_API_KEY=ck_live_... node dist/index.js

Releasing: bump the version in package.json, server.json (both version fields) and src/version.ts, update CHANGELOG.md, then publish a GitHub release tagged vX.Y.Z. The publish workflow ships to npm and the MCP Registry. To publish by hand instead: pnpm publish --access public, then run the MCP Registry workflow (a personal mcp-publisher login github can't publish under the gege-mn namespace).

License

MIT © gege.mn

Source: README.md at commit ebdfa1b

Tools

21

whoami

Who am I

Identify the API key this connection uses (GET /me): `tenantId` (the workspace), `apiKeyId` and `scopes`. Write tools need the `write` scope; call this to check before attempting them.

Takes no parameters.

get_usage

Get plan and usage

The workspace's plan, subscription status and this calendar month's usage against the monthly quota (GET /billing/subscription). `used`/`remaining` are null on unmetered plans. On a hard-capped plan, sends beyond the quota fail with HTTP 402 quota_exceeded.

Takes no parameters.

list_channels

List channels

List the delivery channels configured in this workspace (GET /channels). Call this FIRST before sending: each entry's `id` is the `channelConfigId` for send_notification and test_send_template, `kind` is the channel type (ses_email, smtp_email, fcm_push, slack_webhook, discord_webhook, telegram_bot, twilio_sms, sendsms_mn, generic_webhook), `templateKind` is the template channelKind it accepts, and `recipientSchema` is the exact JSON Schema of the `recipient` it expects. Channels and their provider credentials are set up in the Ray dashboard, not through this API; if the list is empty, ask the user to add one there.

Takes no parameters.

send_notification

Send notification

Send a notification (POST /send; needs a `write`-scoped key). Returns `{ sendId }` with HTTP 202: delivery is asynchronous, so check the outcome with get_send_status. Use exactly one mode: 1. Single: `channelConfigId` + `recipient`. 2. Fan-out: `channelConfigId` + `targets` (1-1000 `{ recipient, externalUserId? }`), one channel, one sendId. 3. Multi-channel: `deliveries` (1-10, each with its own `channelConfigId`, `recipient` and `templateId` or `content`) for ONE person over several channels; add `feed` + `externalUserId` for a single in-app feed entry. 4. Feed-only: `feed` (with `title`) + `externalUserId` and no channel: an in-app notification only. In modes 1-2 give exactly one of `templateId` (a published template, plus `params`) or inline `content`; in mode 3 that choice is made per delivery. Get channel ids and each recipient shape from list_channels first. Pass `idempotencyKey` whenever a retry must not deliver twice.

ParametersfeedparamscontenttargetslogTitleprioritynotBeforerecipientcampaignIddeliveriesshowInFeedtemplateId+5 more

get_send_status

Get send status

Delivery status of a send (GET /sends/{id}): `aggregate` counts per status over the whole send (pending, claimed, delivered, failed_retryable, failed_terminal, suppressed) plus one page of per-recipient delivery rows including provider errors. Right after sending, rows are usually `pending`; check again after a few seconds. Feed-only sends have no rows. For more rows, pass the returned `nextCursor` as `cursor`.

ParameterslimitcursorsendIdrequired

list_templates

List templates

List message templates (GET /templates): id, name, folder, channelKind, and `publishedVersionId` (null = never published, so it cannot be sent by templateId yet). Archived templates are hidden unless `includeArchived` is true. Use get_template for content and required params.

ParametersfolderincludeArchived

get_template

Get template

Get one template with its published version and its current draft (GET /templates/{id}): content, logTitle/logDescription, `requiredParams` a send must supply, and paramOverrides. Read this before update_template_draft, which needs the full body.

ParameterstemplateIdrequired

create_template

Create template

Create a template (POST /templates; write scope). `channelKind` is permanent and must match the channels you'll send through (list_channels `templateKind`). It is saved as an unpublished draft unless `publish: true`; sending by templateId needs a published version (publish_template). Names are unique per workspace including archived templates: a collision returns 409, so unarchive_template the old one instead. Returns `{ id, requiredParams }`. Designed (drag-and-drop) email templates can only be made in the dashboard.

ParametersnamerequiredfoldercontentrequiredpublishlogTitlerequiredchannelKindrequiredlogDescriptionrequiredparamOverrides

update_template_draft

Update template draft

Replace a template's draft (PATCH /templates/{id}; write scope). This is a full replacement, not a partial patch: pass content, logTitle, logDescription and paramOverrides as they should end up (get_template first). `name`, `folder` and `channelKind` are required for validation but not changed (channelKind must equal the original). Live sends keep using the published version until you publish, either with `publish: true` here or publish_template. Fails on archived templates.

ParametersnamerequiredfoldercontentrequiredpublishlogTitlerequiredtemplateIdrequiredchannelKindrequiredlogDescriptionrequiredparamOverrides

publish_template

Publish template

Publish a template's current draft as its new live version (POST /templates/{id}/publish; write scope). Sends by templateId use it immediately. Fails if there is no draft or the template is archived.

ParameterstemplateIdrequired

archive_template

Archive template

Archive a template (POST /templates/{id}/archive; write scope). Sends that reference it fail until it is restored with unarchive_template; its name stays reserved meanwhile. Confirm with the user first if it may be in production use.

ParameterstemplateIdrequired

unarchive_template

Unarchive template

Restore an archived template (POST /templates/{id}/unarchive; write scope). This is how to reclaim a name held by an archived template instead of creating a new one.

ParameterstemplateIdrequired

test_send_template

Test-send template

Send a real test of a template's PUBLISHED version to one recipient (POST /templates/{id}/test-send; write scope). It goes through the provider for real, so use a recipient the user controls. Test sends don't count toward the monthly quota (a small daily allowance applies instead) and never appear in feeds. Returns `{ sendId }` for get_send_status.

ParametersparamsrecipientrequiredtemplateIdrequiredchannelConfigIdrequired

list_feed_notifications

List feed notifications

Read one end user's in-app notification feed (GET /notifications): the entries created by sends with `feed` or `showInFeed`. This is what an in-app inbox would show, not delivery status (use get_send_status for that). Paginate by passing `nextCursor` back as `cursor`.

ParametersafterlimitbeforecursortemplateIdexternalUserIdrequiredchannelConfigId

get_click_stats

Get click stats

Email link click counts grouped by destination URL (GET /clicks) for a `sendId`, a `campaignId`, or both (at least one is required). Only links from email sends made with `trackClicks: true` are counted.

ParameterssendIdcampaignId

list_webhooks

List webhooks

List the workspace's outbound event webhooks (GET /tenant-webhooks): url, subscribed events, enabled flag and delivery health (consecutiveFailures, lastError). Signing secrets are never returned.

ParametersincludeArchived

get_webhook

Get webhook

Get one outbound webhook (GET /tenant-webhooks/{id}) including its delivery health (consecutiveFailures, lastDeliveryAt, lastFailureAt, lastError).

ParameterswebhookIdrequired

create_webhook

Create webhook

Create an outbound webhook that Ray POSTs signed event payloads to (POST /tenant-webhooks; write scope; Pro plan or higher, otherwise 403). The URL must be public HTTPS. The response contains the signing `secret` exactly once: show it to the user to store (e.g. as an env var), since it can't be read again, only rotated with update_webhook. Read the `webhooks` docs page for the signature scheme.

Parametersurlrequirednamerequiredeventsrequired

update_webhook

Update webhook

Change a webhook (PATCH /tenant-webhooks/{id}; write scope). Only the fields you pass change; pass at least one. `rotateSecret: true` issues a new signing secret, returned once in the response, and the old secret stops verifying immediately, so the receiving service must be updated at the same time.

ParametersurlnameeventsenabledwebhookIdrequiredrotateSecret

delete_webhook

Delete webhook

Delete (archive) a webhook so it receives no more events (DELETE /tenant-webhooks/{id}; write scope). It cannot be restored through the API; confirm with the user first.

ParameterswebhookIdrequired

read_docs

Read Ray docs

Read Ray's documentation as markdown. With no `slug` it returns the index (llms.txt) listing every page; then pass a page slug, i.e. the path after /docs/ without `.md`, such as `sending`, `templates`, `idempotency`, `errors`, `rate-limits`, `webhooks`, `status-and-feeds` or `channels/telegram`. Use it for anything the tool descriptions don't cover.

Parametersslug

Version history

1
  1. v0.1.0LatestSep 16, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts