Leaderboard/Email Sender — Transactional Email via API
MCP ServerScored via MCP protocol probing: initialize handshake, tools/list conformance, and ping + tool invocation performance.

Email Sender — Transactional Email via API

Email sending API for AI agents. Send transactional emails programmatically — text or HTML body, custom subject, from address, delivery status confirmation and message ID. Powered by Resend. Tools: email_send_message. Use this when your agent needs to send notifications, reports, alerts, or outreach emails. IMPORTANT: Verify recipient with email_verify_address BEFORE sending to avoid bounces. Returns: {id, status, from, to, subject}. No API key required — x402 micropayment $0.003/call on Base L2.

54/100
Operational Score
Score Breakdown
Availability30/30
Conformance10/30
Performance14/40
Key Metrics
Uptime 30d
100.0%
P95 Latency
375.1ms
Conformance
Fail
Trend
Stable
What's Being Tested
Availability
HTTP health check to the service endpoint
Responded with HTTP 401 in 187ms
ConformanceNot tested
MCP initialize handshake + tools/list
Performance
MCP ping + zero-arg tool invocation benchmarking
P95 latency: 375ms, task completion: 0%
Recent Probe Results
TimestampStatusLatencyConformance
Apr 29, 2026success187.9msPass
Apr 28, 2026success218.5msPass
Apr 28, 2026success208.1msPass
Apr 28, 2026success375.1msPass
Apr 28, 2026success173.9msPass
Source Registries
smithery
First Seen
Apr 27, 2026
Last Seen
Apr 29, 2026
Last Probed
Apr 29, 2026