Close study · not a fake MCP listing
SKILL.md — Resend
Real skill file for agents. When to use / when not is inside the document. This is not a fake MCP listing.
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--- name: resend description: Operate Resend as an agent using public APIs, CLIs, and docs. Twin Score agent 94. --- # Resend skill Resend is a transactional email API with React-email ergonomics and a calm dashboard. Humans inspect deliveries. Agents send mail. Documentation is the product, which is why the agent Twin Score sits next to Stripe. We do not confuse a pretty dashboard with a complete ESP for marketers — this is transactional email for builders. Twin Score on this directory is 85 for humans and 94 for agents, using the public rubric (interface, onboarding, human docs, collaboration, support, pricing fairness, accessibility, reliability versus API quality, MCP or tool surface, CLI, structured docs, machine auth, quotas, determinism, and skill packaging). Resend is sold by Resend, founded 2023, headquartered in San Francisco, USA. Pricing in public materials: Free developer tier; Pro and usage on email volume. Machine capabilities we record: API excellent, MCP none, CLI none, docs excellent, auth API keys. This page is editorial, not a star rating scraped from users. ## When to use Use this skill when a user asks to integrate, script, or evaluate Resend (Resend). ## When not to use Do not claim an MCP server exists unless the capability matrix says so (current MCP level: none). Do not invent user-count ratings. ## Capability matrix | Surface | Level | |---|---| | API | excellent | | MCP | none | | CLI | none | | Docs | excellent | | Auth | API keys | | Webhooks | strong | | SDKs | node, python, http | ## Auth API keys ## Pricing (public) Free developer tier; Pro and usage on email volume. ## Official site https://resend.com ## Twin Score Human 85. Agent 94. Updated 2026-08-01. Rubric: https://buildsomethingagentswant.com/scorecard ## Alternatives - sendgrid - postmark