X/Twitter data API for profiles, search, timelines & monitors
Stable REST endpoints for search, analytics, and AI pipelines — plus account monitors that push signed webhooks when KOLs post. Skip the $5,000/mo official stream — alerts from $19/mo.
- 1,000 free API calls / month
- Profile, search & timeline REST API
- Monitors + webhooks from $19/mo — not $5k stream
Look up a public account — id, bio, followers, verification.
/api/demo/profile?username=elonmusk
curl -H "Authorization: Bearer xflux_YOUR_KEY" \ https://www.xfluxapi.com/api/v1/users/elonmusk
{
"ready": true,
"next": "Pick a sample below, then run a live demo request."
}Public demo · cached ~5 min · no signup · full API after free registration
Popular X/Twitter signals
Free live digests by topic — who posted what, key themes, and accounts to monitor.
AI & LLM
Model releases, agent products, safety news, and research from leading AI voices.
Crypto & Bitcoin
Bitcoin, Ethereum, and crypto market chatter from founders and on-chain analysts.
Trading & Markets
Market-moving posts from traders, macro accounts, and live search for active investors.
Startups & Founders
Founder posts, product launches, and startup discourse from builders you follow.
Twitter / X API
API tier changes, deprecations, and developer workarounds from the X dev community.
Webhooks & Integrations
Webhook signing, retry logic, and event-driven patterns from backend engineers.
Machine Learning
Paper releases, training runs, and ML engineering discourse from researchers and practitioners.
Forex & FX
Dollar strength, rate decisions, and FX positioning talk from macro and FX traders.
One API for read access — plus monitors that push to you
REST endpoints for on-demand pulls. Account monitors with optional webhooks when you do not want to poll yourself.
Profiles & users
Lookup public profiles by @username — id, bio, followers, verification.
Use for: CRM enrichment, author cards, verification checks
Timelines
Fetch recent tweets from any public account timeline.
Use for: Feed widgets, backtests, content archives
Search
Search public posts by keyword, hashtag, or from:username.
Use for: Brand monitoring, trend research, RAG ingestion
Tweet lookup
Retrieve a single tweet by ID for enrichment or moderation pipelines.
Use for: Link unfurling, moderation, fact-check tools
Account monitors
Background polling for new tweets — no cron jobs or scraping scripts.
Use for: KOL tracking, competitor watches, alert rules
Signed webhooks
HTTP POST to your URL when a monitor detects a new tweet. HMAC verified.
Use for: Slack bots, trading signals, real-time AI agents
Three ways teams use XFlux
Start with the REST API for one-off reads. Add monitors when you need ongoing coverage. Upgrade to webhooks when you want push instead of poll.
Pull data on demand
Call REST endpoints from your app, script, or data pipeline — profiles, search, timelines, tweet lookup.
- Enrich a CRM with @handles
- Backfill tweets for sentiment
- Power a search UI
Watch accounts in the background
Create monitors in the Dashboard. XFlux polls for new tweets so you do not need cron jobs or scrapers.
- Track KOL accounts
- Watch competitor launches
- Alert on brand mentions
Get pushed via webhook
On Starter plans and above, new monitor hits POST signed JSON to your HTTPS endpoint — build real-time alerts.
- Slack / Discord bots
- Trading signal pipelines
- Auto-summarize new posts
Scene-specific guides: Trading alerts · AI research · Crypto alerts · vs official X API pricing
Pull with REST — or get pushed when accounts post
Use the read API in your app, bot, or data pipeline. Add monitors when you need account-level alerts — a practical alternative to the official $5,000/mo filtered stream, from $19/mo.
REST API — on-demand reads
Bearer token auth. Normalized JSON. 1,000 free calls per month.
# Profile lookup curl https://www.xfluxapi.com/api/v1/users/elonmusk \ -H "Authorization: Bearer xflux_YOUR_KEY" # Search recent posts curl "https://www.xfluxapi.com/api/v1/search?q=from:elonmusk&limit=10" \ -H "Authorization: Bearer xflux_YOUR_KEY" # User timeline curl "https://www.xfluxapi.com/api/v1/users/elonmusk/tweets?limit=10" \ -H "Authorization: Bearer xflux_YOUR_KEY"Quickstart guide
Monitors — webhook on new tweets
Watch @accounts in the Dashboard. Starter plans POST signed JSON to your HTTPS URL when a new tweet is detected — no polling code on your side.
POST https://your-app.com/webhooks/xflux
X-XFlux-Event: monitor.hit
X-XFlux-Signature: sha256=...
{
"event": "monitor.hit",
"monitor": { "targetUsername": "elonmusk" },
"tweet": { "id": "...", "text": "..." }
}Typical workflow
- ① Register
Create a free account and copy your API key from the Dashboard — under 60 seconds.
- ② Integrate
Call REST for profiles, search, and timelines — or add a monitor for accounts you want to watch continuously.
- ③ Automate
On paid plans, route monitor hits to your webhook for Slack alerts, trading bots, or AI summarization pipelines.
Built for the jobs you actually have
Whether you need on-demand reads, always-on KOL watches, or MCP for AI agents, XFlux combines API and monitors — without enterprise pricing or approval delays.
Catch KOL posts before the market moves
You follow influential accounts but can't sit on X all day — and most API tools only let you pull data on demand.
- Monitor @accounts on a schedule — no cron jobs to maintain
- Keyword filters for Fed, flow, or ticker-specific hits
- Signed webhooks into Make, Slack, or your bot (paid)
Unlike the official filtered stream ($5,000+/mo), you watch accounts you pick from $19.
Aggregate AI lab & researcher timelines
You need OpenAI, Anthropic, DeepMind, and researcher posts in one pipeline — without official API friction.
- Poll timelines and search via REST or MCP
- Batch @handles into a research digest
- 1,000 free API calls/month to prototype
Unlike scrapers, you get stable JSON, quotas, and an MCP server for Claude/Cursor.
Alert when crypto KOLs mention tokens
Memecoin and trading accounts move markets in minutes — manual refresh is too slow.
- Monitor KOLs with token/keyword filters
- Webhook hits to Telegram, Discord, or your bot
- Browse live crypto digests and Smart Money accounts
Unlike enterprise listening suites, setup is self-serve and priced for builders.
Give Claude or Cursor live X data
Agents need profiles, search, and your monitor hits without you pasting screenshots.
- Official MCP Registry package via npx
- Compact summaries for agent context windows
- Read-only monitor list and hits with your API key
Unlike posting-focused MCP servers, XFlux is built for research and monitoring.
Embed X data in your product without enterprise sales
You want profile lookup or search inside your app, not a months-long developer portal application.
- Drop-in REST API with clear quotas per plan
- Scale from free tier to 4M calls/month
- Self-serve docs and API keys
Unlike the official Basic tier at $100+/mo, paid plans start at $19.
Track competitors, founders, and industry voices
Enterprise social listening is overkill; wiring your own monitors eats engineering time.
- Watch multiple public accounts per plan
- Dashboard timeline of every new hit
- Webhook into Slack, Discord, or your backend
Unlike listening suites priced for enterprises, XFlux is built for builders.
Turn account activity into real-time signals
You need a reliable trigger when a specific account posts — not a manual refresh or fragile scraper.
- Poll intervals from 1s (paid) to 5 min (Free)
- HMAC-signed webhook payloads for verification
- One monitor on Free — scale to 50 on Scale
Unlike DIY scripts, polling runs in our infrastructure.
Start free, ship fast, upgrade when traction hits
You're validating an idea and don't want a credit card or sales call before the first API call.
- Free tier: 1,000 API calls + 1 monitor
- Instant signup — API key in under 60 seconds
- Upgrade only when usage grows
Unlike platforms that gate access behind approval, you start building today.
Why developers choose XFlux
Official X API pricing and approval can slow you down. XFlux is built for teams that need read access and monitors without the enterprise overhead.
Full breakdown: Pricing vs official X API · Trading alerts · AI research · Crypto alerts
Up and running in 3 steps
From signup to your first API call in minutes.
Create a free account
Sign up in under a minute. No credit card, no approval wait.
Copy your API key
Your key is ready instantly in the dashboard. Use it in the Authorization header.
Make your first call
Fetch a profile, search tweets, or add an account monitor — follow the quickstart.
What XFlux ships today
Read endpoints, account monitors, and MCP for AI agents are live now. Posting and DM automation are on the roadmap.
Read API
Fetch user profiles, timelines, tweet lookup, and search results via REST endpoints.
Account Monitors
Poll public accounts on a schedule. View hits in the Dashboard; paid plans can POST signed webhooks to your URL.
Auto Posting
Coming soonSchedule tweets, batch post, and manage content with template variables.
DM Automation
Coming soonSend bulk DMs for outreach and notifications.
Usage Dashboard
View API usage, monthly quota, and monitor task status from one dashboard.
MCP for AI agents
Official MCP Registry + npm: npx @xflux/xflux-mcp-server. Use XFlux from Claude Desktop and Cursor with your API key.
Simple, transparent pricing
Start free, scale as you grow
Free
$0