Agent Skills that teach Claude how to send WhatsApp, SMS, OTP, and email through SendAPI — with the right channel, the correct verification flow, and bulk-send guardrails built in.
The Skill is the know-how; the SendAPI MCP server is the tools. This plugin installs both — the skill and a connection to the hosted MCP server — in one step.
/plugin marketplace add SendAPI-co/sendapi-skills
/plugin install sendapiThen set your API key in the environment so the MCP server can authenticate:
export SENDAPI_API_KEY=sk_live_xxxx # from https://sendapi.co/dashboardNow just ask:
"Send an SMS to +1 555 000 0000 letting them know their order shipped."
| Skill | What it teaches |
|---|---|
sendapi |
Choosing a channel (SMS / WhatsApp / email / OTP), the required fields for each, the send_otp → check_otp verify flow, bulk-send confirmation guardrails, and acting on error codes. |
The plugin's .mcp.json registers the hosted SendAPI MCP server
(https://sendapi.co/mcp), so Claude gets real tools — send_sms, send_whatsapp, send_email,
send_otp, check_otp, and more — alongside the know-how.
Copy the skill folder into your skills directory:
mkdir -p ~/.claude/skills/sendapi
cp -r skills/sendapi/SKILL.md skills/sendapi/references ~/.claude/skills/sendapi/For a single project, place it at .claude/skills/sendapi/ instead. The skill works on its own
through the REST API (https://sendapi.co/v1) when the MCP server isn't connected — set
SENDAPI_API_KEY in the environment.
- A SendAPI API key — free from the dashboard.
- Claude Code or Claude Desktop.
MIT — see LICENSE.