The X (Twitter) API for your agent, without a X developer app.

Publish posts with text, images and videos on X (Twitter) from Claude Code, Codex, Cursor, n8n or your own code. Try it free with a sandbox key: no sign-up, no card.

From your agent (MCP)

claude mcp add --transport http wyro https://wyroapi.com/mcp

Post on X (Twitter) "Our agent posts on its own now." and show me the preview.

Without a key the agent creates a free sandbox key by itself. Sandbox posts are simulated and return a public preview link showing how the post would look on X (Twitter).

From your code (REST)

curl -X POST https://wyroapi.com/v1/sandbox

curl -X POST https://wyroapi.com/v1/posts \
  -H "Authorization: Bearer $WYRO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"Our agent posts on its own now.","platforms":["twitter"]}'

The response includes the preview link and the next step for the agent. Errors come with a fix field in English and Spanish.

X (Twitter) requirements

Image or video optional.
Up to 280 characters of text.

Go live

When you are ready, the agent gives you a link: you sign in, authorize your X (Twitter) account, and the same key starts publishing for real. Real accounts get a 7-day trial; then USD 5 per connected account per month.

FAQ

What if the text is longer than 280 characters?

The API returns text_too_long with each network's limit and how to fix it, so the agent can shorten it.

Can I schedule posts on X?

Yes. Send scheduled_at as an ISO 8601 date; in the MCP server, use the programar_para argument.

Do I need to pay for the X API?

No. You pay per connected account; X API access is on us.

Other networks: Instagram · TikTok · Facebook · LinkedIn · Threads · YouTube · Pinterest · Overview · En español