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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "sendly": {
      "type": "http",
      "url": "https://app.sendly.now/api/mcp",
      "headers": {
        "Authorization": "Bearer ${SENDLY_TOKEN}"
      }
    }
  }
}

claude mcp add --transport http sendly https://app.sendly.now/api/mcp --header "Authorization: Bearer ${SENDLY_TOKEN}"

[mcp_servers.sendly]
url = "https://app.sendly.now/api/mcp"
bearer_token_env_var = "SENDLY_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "sendly": {
      "type": "remote",
      "url": "https://app.sendly.now/api/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:SENDLY_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "sendly": {
      "type": "http",
      "url": "https://app.sendly.now/api/mcp",
      "headers": {
        "Authorization": "Bearer ${SENDLY_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=sendly&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vYXBwLnNlbmRseS5ub3cvYXBpL21jcCIsImhlYWRlcnMiOnsiQXV0aG9yaXphdGlvbiI6IkJlYXJlciAke1NFTkRMWV9UT0tFTn0ifX0%3D"
}

{
  "servers": {
    "sendly": {
      "type": "http",
      "url": "https://app.sendly.now/api/mcp",
      "headers": {
        "Authorization": "Bearer ${SENDLY_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "sendly": {
      "httpUrl": "https://app.sendly.now/api/mcp",
      "headers": {
        "Authorization": "Bearer ${SENDLY_TOKEN}"
      }
    }
  }
}

extensions:
  "sendly":
    enabled: true
    name: "sendly"
    type: streamable_http
    uri: "https://app.sendly.now/api/mcp"
    headers:
      "Authorization": "Bearer ${SENDLY_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${SENDLY_TOKEN}. The registry never accepts secret values.

Quality 83 / 100good

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorization83 · weight 15

pass
auth.prmProtected Resource Metadata (RFC 9728) published
pass
auth.as_metadataauthorization server metadata reachable
warn
auth.cimdonly Dynamic Client Registration, deprecated in 2026-07-28 in favour of CIMD
n/a
auth.secret_in_urlno templated URL

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

Tool list unknown · checked 2026-10-19 10:20 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 79 / 100

no-repository

provenance55

liveness97

freshness85

hygiene80

+dns-namespace +website +reachable +uptime-94% ~updated-39d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://app.sendly.now/api/mcp` streamable-http	oauth2 AS: https://app.sendly.now/api/auth	yes	94%	353 ms	–	2026-10-19

Tools (0)

No tools observed. Tools appear once a credential-free probe can list them.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "now.sendly/sendly",
  "title": "Sendly",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://app.sendly.now/api/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "description": "Optional. `Bearer sk_…` connects a headless agent with one Sendly secret key, and the key's own scopes become the agent's permissions. Omit it entirely and the server answers 401 with an RFC 9728 challenge, which is how an interactive client discovers the OAuth 2.1 + PKCE flow and registers itself. Sending-only `pk_…` keys are refused."
        }
      ]
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://docs.sendly.now/guides/mcp",
  "description": "Send email, manage contacts, campaigns and workflows, and diagnose deliverability in Sendly."
}