sendblue-api
Send and receive iMessage, SMS, and RCS from application code via the Sendblue HTTP API — text, media, group messages, send styles, reactions, typing indicators, status callbacks, and inbound webhooks.
Profile →npx skills add sickn33/agentic-awesome-skills --skill sendblue-api --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Sendblue API ## Overview Sendblue is a REST API that sends iMessage (blue bubbles), SMS, and RCS from a provisioned phone number. Everything is plain JSON over HTTPS — no SDK is required. The API covers outbound 1:1 and group sends, iMessage effects, reactions, typing indicators, status callbacks, and inbound webhooks. ## When to Use This Skill - Use when writing application code (server, worker, function) that sends Sendblue messages as part of a long-running service. - Use when receiving inbound messages via webhooks. - Use when you need features the CLI does not expose: send styles, reactions, group messages, typing indicators, status callbacks, media uploads, or the contacts API beyond basic CRUD. - Reach for [[sendblue-cli]] instead for shell-context outbound: one-shot scripts, cron jobs, agent hooks, "ping me when X" workflows. ## How It Works ### Step 1: Authenticate ``` https://api.sendblue.com ``` Every request needs two headers: ``` sb-api-key-id: <YOUR_API_KEY_ID> sb-api-secret-key: <YOUR_API_SECRET> Content-Type: application/json ``` Keep both values server-side — never ship them to a browser or mobile client. ### Step 2: Send a message ```bash curl -X POST https://ap
- Overview
- When to Use This Skill
- How It Works
- Step 1: Authenticate
- Step 2: Send a message
- Step 3: Track delivery
- Step 4: Receive inbound
- Core Endpoints
- Examples
- Example 1: Send with media, effects, and a status callback
- Example 2: Group message
- Example 3: React to a message
- Example 4: Inbound webhook payload (receive)
- Best Practices
curl -X POST https://api.sendblue.com/api/send-message \
What does the sendblue-api skill do?
Send and receive iMessage, SMS, and RCS from application code via the Sendblue HTTP API — text, media, group messages, send styles, reactions, typing indicators, status callbacks, and inbound webhooks.
How do I install it?
Run `npx skills add sickn33/agentic-awesome-skills --skill sendblue-api --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From sickn33/agentic-awesome-skills, a repository with 44,414 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.