Pricing per item
Both use the same peg, 1 USD = 100,000 credits, and bill per item returned.
| Item | RelayX | twitterapi.io |
|---|---|---|
| Tweet | 13 credits ($0.13 / 1K) | 15 credits ($0.15 / 1K) |
| User profile | 15 credits ($0.15 / 1K) | 18 credits ($0.18 / 1K) |
| Follower / following | 3 → 2 → 1 credits, tiered by page fill | 3 → 2 → 1 credits, tiered by page size |
| Follower ID | 2 → 1 → 0.4 credits, tiered | 2 → 1 → 0.45 credits, tiered |
| Per-call minimum | 15 credits, waived on bulk | 15 credits, waived on bulk |
| Credits expire? | No | Recharged credits: no. Bonus credits: valid 30 days |
| Subscription option | No — prepaid credits only | Yes, with recharge bonus and monthly credit return |
Capabilities
| RelayX | twitterapi.io | |
|---|---|---|
| Endpoints | 27 read endpoints (users, tweets, search, lists, communities, Spaces, trends) | 75+ endpoints |
| Write actions (post, like, follow…) | Not available | Yes |
| Real-time streams | Not available | WebSocket and webhooks |
| MCP server for AI assistants | Not yet available | Yes |
| Throughput | 1–20 requests/second, rising with your credit balance | 1,000+ requests/second by default |
| Free trial credits | Yes | $0.1 |
| X developer account needed | No | No |
Which one fits
Pick RelayX if
- Your workload is reads — profiles, timelines, search, followers — and cost per item matters most.
- You run at modest throughput, well within 20 requests per second.
- You want prepaid credits that don't expire, with no subscription.
Pick twitterapi.io if
- You need hundreds of requests per second or more.
- You need write actions, real-time streams, or an MCP server today.
- You need an endpoint RelayX doesn't offer.
Try it in a minute
Create a key in the dashboard, then follow the quickstart. Every response carries an X-Credits-Cost header, so you can measure the real cost of your own calls. See credits in practice for how charges work.
FAQ
Is RelayX cheaper than twitterapi.io?
Per item, yes: RelayX charges 13 credits per tweet and 15 per user profile; twitterapi.io charges 15 per tweet and 18 per profile — at the same 1 USD = 100,000 credits peg. Both charge a 15-credit minimum per call, waived on bulk responses.
When is twitterapi.io the better choice?
If you need high throughput (it states 1,000+ requests per second by default), write actions such as posting or liking, real-time streams over WebSocket or webhooks, or an MCP server today.
Do I need an X developer account for either?
No. Both are called with their own API key in an X-API-Key header.
Sources
twitterapi.io figures are taken from its own pricing page and home page, checked on 2026-09-25. Prices and features change; check their site for the current terms. RelayX is not affiliated with twitterapi.io or with X Corp.