Teach your agent Unitpost, in seconds.
One command. Claude Code, Cursor, Codex, Copilot, Gemini, Windsurf, and 60+ more.
Open source · docs only, no secrets
# Auto-detects your agents and installs the Unitpost skill
npx skills add unitpostcom/skills --skill unitpost
# …or globally, for every project
npx skills add unitpostcom/skills --skill unitpost -gWhat it teaches
Everything the agent needs to get it right
Docs the agent loads on demand. Correct API calls from the first try.
The API surface
IDs, request shapes, OpenAPI. Real endpoints, not invented ones.
Scopes & auth
How to auth, and which capability each call needs.
Send-safety rules
Confirm before send. Verified domains only.
MCP or REST
When to use MCP tools versus raw REST calls.
Pairs with the MCP server
The skill teaches the agent how to think about Unitpost; the MCP server gives it the tools to act. Install both.
Works with your agent
One skill, every coding agent
The CLI detects your agents and writes the skill in. No per-agent setup.
Questions
Common questions
What is the Unitpost agent Skill?
It's documentation packaged so a coding agent can load it on demand — our API shape, the prefixed ID scheme, capability scopes, pagination, error codes, SDK usage, and send-safety rules. It isn't a dependency you import or a service you call. The point is that the agent writes correct integration code the first time instead of inventing endpoints that don't exist.
How do I install the Unitpost skill in my coding agent?
Run npx skills add unitpostcom/skills --skill unitpost in your project, or add -g to install it once for every project. The skills CLI auto-detects which agents you have and writes the skill into each one's skills directory, so Claude Code, Cursor, Codex, Copilot, Gemini, Windsurf, and 60-plus others pick it up without per-tool configuration.
What's the difference between the Skill and the MCP server?
The Skill is knowledge; the MCP server is capability. The Skill teaches an agent how Unitpost works so it can write correct code against our REST API and SDKs. The MCP server gives an agent live tools it can actually call — send a message, verify a domain, build a segment. They're complementary, and installing both is the intended setup.
Does installing the skill give an agent access to my account?
No. The skill is documentation only and contains no secrets or credentials — you supply an API key at runtime, exactly as you would for your own code. It also can't widen what a key is allowed to do: capability scopes, the verified-domain sending gate, suppression, and rate limits are enforced server-side no matter what the agent has read.
Is the Unitpost skill open source?
Yes. It lives publicly at github.com/unitpostcom/skills, so you can read exactly what your agent is being told about us before installing it, pin a version, or fork it to add your own conventions. It's free and needs no Unitpost account to read — you only need one when you actually want to send.
Teach your agent to send email right
Free and open. Install next to MCP. Sending starts on the free plan.