MCPEmailsで開発する

curl -s https://mcpemails.com/api/mcp \
  -H "Authorization: Bearer $MCPEMAILS_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "initialize",
    "params": {
      "protocolVersion": "2025-06-18",
      "clientInfo": { "name": "my-agent", "version": "1.0" },
      "capabilities": {}
    }
  }'

curl -s https://mcpemails.com/api/mcp \
  -H "Authorization: Bearer $MCPEMAILS_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -d '{ "jsonrpc": "2.0", "id": 2, "method": "tools/list" }'

curl -s https://mcpemails.com/api/mcp \
  -H "Authorization: Bearer $MCPEMAILS_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 3,
    "method": "tools/call",
    "params": {
      "name": "email_read",
      "arguments": { "action": "list", "inbox": "you@example.com", "unread": true, "limit": 20 }
    }
  }'

{
  "jsonrpc": "2.0",
  "id": 3,
  "result": {
    "content": [{ "type": "text", "text": "{\"messages\":[...],\"total\":42, ...}" }],
    "structuredContent": {
      "messages": [{ "id": "...", "subject": "...", "from": { "name": "...", "email": "..." } }],
      "total": 42,
      "total_is_estimate": false,
      "has_more": true,
      "next_offset": 20
    }
  }
}

HTTP/1.1 403 Forbidden
WWW-Authenticate: Bearer error="insufficient_scope", ...

{
  "jsonrpc": "2.0",
  "id": 4,
  "error": {
    "code": -32004,
    "message": "Insufficient scope: the 'send:email' scope is required to call email_compose.",
    "data": { "error_code": "insufficient_scope", "required_scopes": ["send:email"], ... }
  }
}

HTTP/1.1 429 Too Many Requests
Retry-After: 12

{
  "jsonrpc": "2.0",
  "id": 5,
  "error": {
    "code": -32003,
    "message": "Rate limit exceeded",
    "data": { "error_code": "rate_limit_exceeded", "window": "per_minute", "retry_after": 12, ... }
  }
}

{
  "jsonrpc": "2.0",
  "id": 6,
  "result": {
    "isError": true,
    "content": [{ "type": "text", "text": "Invalid arguments for email_read. The call was rejected before it ran, ..." }],
    "_meta": {
      "com.mcpemails/invalid_arguments": {
        "error_code": "invalid_arguments",
        "retryable": false,
        "errors": [{ "path": "arguments.since", "message": "..." }]
      }
    }
  }
}

curl -s https://mcpemails.com/api/mcp \
  -H "Authorization: Bearer $MCPEMAILS_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 7,
    "method": "tools/call",
    "params": {
      "name": "email_compose",
      "arguments": {
        "action": "send",
        "inbox": "you@example.com",
        "to": ["customer@example.com"],
        "subject": "Your order has shipped",
        "body": "Hi, your order is on its way.",
        "idempotency_key": "order-1042-shipped"
      }
    }
  }'

{
  "idempotency_key": "order-1042-shipped",
  "idempotent_replay": true,
  "status": "succeeded",
  "result": { "message_id": "...", "inbox_id": "...", "status": "sent" },
  "message": "This logical request was already processed. ..."
}

POST /your/webhook HTTP/1.1
Content-Type: application/json
MCPEmails-Event-Id: evt_...
MCPEmails-Event-Type: message.received
MCPEmails-Signature: t=1792843200,v1=5f2b...

{
  "id": "evt_...",
  "type": "message.received",
  "created_at": "2026-10-24T09:20:00.000Z",
  "workspace_id": "...",
  "inbox_id": "...",
  "folder": "INBOX",
  "count": 1,
  "message_ids": ["..."]
}

import crypto from 'node:crypto';

// rawBody: the request body exactly as received, before JSON.parse.
export function verifyMcpemailsSignature(rawBody, header, secret, toleranceSeconds = 300) {
  const parts = Object.fromEntries(
    String(header ?? '').split(',').map((part) => part.trim().split('=')),
  );
  const timestamp = Number(parts.t);
  if (!Number.isFinite(timestamp)) return false;
  if (Math.abs(Date.now() / 1000 - timestamp) > toleranceSeconds) return false;

  const expected = crypto
    .createHmac('sha256', secret)
    .update(`${parts.t}.${rawBody}`)
    .digest();
  const received = Buffer.from(parts.v1 ?? '', 'hex');
  return received.length === expected.length && crypto.timingSafeEqual(received, expected);
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "email_read",
    "arguments": {
      "action": "read",
      "inbox_id": "{{ $json.body.inbox_id }}",
      "message_id": "{{ $json.body.message_ids[0] }}"
    }
  }
}

claude mcp add --transport http mcpemails https://mcpemails.com/api/mcp \
  --header "Authorization: Bearer $MCPEMAILS_KEY"

// node agent.mjs  (Node 18 or later, MCPEMAILS_KEY in the environment)
const ENDPOINT = 'https://mcpemails.com/api/mcp';
let nextId = 1;

async function callTool(name, args) {
  const res = await fetch(ENDPOINT, {
    method: 'POST',
    headers: {
      Authorization: `Bearer ${process.env.MCPEMAILS_KEY}`,
      'Content-Type': 'application/json',
      Accept: 'application/json',
    },
    body: JSON.stringify({ jsonrpc: '2.0', id: nextId++, method: 'tools/call', params: { name, arguments: args } }),
  });
  if (res.status === 429) {
    const wait = Number(res.headers.get('Retry-After') ?? 1);
    await new Promise((resolve) => setTimeout(resolve, wait * 1000));
    return callTool(name, args);
  }
  const reply = await res.json();
  if (reply.error) throw new Error(`${reply.error.code}: ${reply.error.message}`);
  if (reply.result.isError) throw new Error(reply.result.content[0].text);
  return reply.result.structuredContent;
}

const inbox = 'you@example.com';
let offset = 0;
do {
  const page = await callTool('email_read', { action: 'list', inbox, unread: true, limit: 50, offset });
  for (const m of page.messages) console.log(m.id, m.from?.email, m.subject);
  offset = page.has_more ? page.next_offset : null;
} while (offset !== null);

{
  "mcp": {
    "servers": {
      "mcpemails": {
        "url": "https://mcpemails.com/api/mcp",
        "transport": "streamable-http",
        "headers": { "Authorization": "Bearer mcpe_YOUR_KEY_HERE" }
      }
    }
  }
}