Post to X from
LangChain, CrewAI & OpenAI Agents SDK

import os, requests
from langchain_core.tools import tool

OPENTWEET = "https://opentweet.io/api/v1/posts"
HEADERS = {"Authorization": f"Bearer {os.environ['OPENTWEET_API_KEY']}"}

@tool
def post_to_x(text: str, scheduled_date: str | None = None,
              publish_now: bool = False) -> str:
    """Create, schedule, or publish a tweet on X (Twitter) via OpenTweet.

    Args:
        text: The tweet body.
        scheduled_date: Optional ISO 8601 time, e.g. "2026-06-01T09:00:00Z".
        publish_now: If True, post immediately. If both are omitted the
                     tweet is saved as a draft for human review (safest default).
    """
    payload: dict = {"text": text}
    if scheduled_date:
        payload["scheduled_date"] = scheduled_date
    elif publish_now:
        payload["publish_now"] = True
    r = requests.post(OPENTWEET, headers=HEADERS, json=payload, timeout=30)
    r.raise_for_status()
    data = r.json()
    return data.get("url") or "Tweet created (draft)."

from langchain.chat_models import init_chat_model
from langgraph.prebuilt import create_react_agent

llm = init_chat_model("anthropic:claude-opus-4-6")  # any LangChain model
agent = create_react_agent(llm, tools=[post_to_x])

agent.invoke({"messages": [
    {"role": "user", "content": "Schedule a tweet for tomorrow 9am UTC announcing v2.0"}
]})

import os, requests
from crewai.tools import tool

@tool("Post to X")
def post_to_x(text: str) -> str:
    """Publish a tweet on X (Twitter) through OpenTweet. Input is the tweet text."""
    r = requests.post(
        "https://opentweet.io/api/v1/posts",
        headers={"Authorization": f"Bearer {os.environ['OPENTWEET_API_KEY']}"},
        json={"text": text, "publish_now": True},
        timeout=30,
    )
    r.raise_for_status()
    return r.json().get("url", "Posted.")

from crewai import Agent, Task, Crew

social = Agent(
    role="Social Media Manager",
    goal="Grow the company's X audience with on-brand posts",
    backstory="You write punchy, valuable tweets and never spam.",
    tools=[post_to_x],
)

Crew(agents=[social], tasks=[
    Task(description="Write and post a launch-day tweet for our new API.",
         agent=social, expected_output="The live tweet URL")
]).kickoff()

import os, requests
from agents import Agent, Runner, function_tool

@function_tool
def post_to_x(text: str) -> str:
    """Post a tweet to X (Twitter) via OpenTweet and return the tweet URL."""
    r = requests.post(
        "https://opentweet.io/api/v1/posts",
        headers={"Authorization": f"Bearer {os.environ['OPENTWEET_API_KEY']}"},
        json={"text": text, "publish_now": True},
        timeout=30,
    )
    r.raise_for_status()
    return r.json().get("url", "Posted.")

agent = Agent(
    name="Social agent",
    instructions="You manage the company's X account. Keep posts on-brand.",
    tools=[post_to_x],
)

Runner.run_sync(agent, "Draft and post a tweet announcing our launch.")