X API alternative for AI agents

Chirpie vs X API

X's own first-party developer API, formerly the Twitter API

Chirpie lets an AI agent post to X without building on the X API itself. Calling X directly means per-request billing, token refresh, your own scheduler and thread chaining. Chirpie wraps the posting side of the X API, adds Bluesky, LinkedIn, Threads, Mastodon, Instagram, Facebook and Telegram, and works from Claude, ChatGPT or any MCP client.

50 free posts a month with the API and MCP server. Read the docs

Chirpie and X API, side by side

X API column checked on 28 September 2026; the bracketed numbers are its sources.

Feature comparison between Chirpie and X API
CapabilityChirpieX API
Platforms8 live: X, Bluesky, LinkedIn, Threads, Mastodon, Instagram, Facebook, Telegram. Coming soon: Pinterest, TikTok, YouTube, Google Business Profile, and LinkedIn Pages.X only
1,000 posts without linksCovered by the plan quota$15 in usage[1]
1,000 posts with a URLPlan + $0.25 per X link post$200 in usage[1]
Link posts on your own X keysNothing added by Chirpie$0.200 each, billed by X[1]
Reading post metricsIncluded in plan analytics$0.005 per post read, $0.001 per owned read[1]
SchedulingYesNo schedule field on POST /2/tweets[2]
Access tokensRefreshed for youTwo hours; refresh with offline.access[4]
Rate limitsHandled for youx-rate-limit headers you track[5]
Official SDKs and CLITypeScript SDK, CLIXDK (TypeScript, Python), xurl CLI[6]
MCP serverHosted, posts to every live platformHosted X MCP, through xurl and your own X app[7]
ThreadsOne call; rolled back if a part failsOne request per post, each replying to the last[3]
Endpoint coveragePosting, deletion, replies, post metricsAll of X API v2; some endpoints Enterprise only[9]

How Chirpie and X API differ

This page compares building on X's first-party API with posting through Chirpie, which itself calls that API. Going direct is a reasonable choice for an X-only product, and X now ships its own SDKs, CLI and MCP server. What you take on is per-request billing, two-hour tokens to refresh, your own scheduler, your own metrics store, and reply chaining for threads. What you give up by using Chirpie is every X endpoint Chirpie does not wrap, which is most of them.[6][7][1][4]

Choose X API if

  • You need endpoints a posting layer does not wrap: full-archive search, filtered stream, direct messages, lists, bookmarks, Community Notes or the Activity API.[9]
  • Your product reads your own X data: owned reads cost $0.001 each, so an X-only analytics or inbox tool pays very little going direct.[1]
  • You want X's own tooling: official TypeScript and Python SDKs (XDK) and the xurl CLI, with no community wrapper in between.[6]
  • You post a little, without links: with no minimum spend, 300 plain posts are $4.50 of usage.[1]
  • You have an Enterprise agreement with X, which lifts restrictions that self-serve access carries.[8]

Visit X API

Choose Chirpie if

  • You post to more than X. One Chirpie call reaches X, Bluesky, LinkedIn, Threads, Mastodon, Instagram, Facebook and Telegram, with the same request shape. How it works
  • You need posts to go out later. Chirpie's scheduler publishes due posts every five minutes, with a guard against publishing any post twice; the X API has no scheduling of its own. How it works
  • You do not want to run token refresh. Chirpie refreshes each account's token and tells you when a connection needs the owner to sign in again. How it works
  • Your threads must not end up half-posted. Chirpie publishes a thread in one call and deletes the parts already live if a later part fails. How it works

What Chirpie and X API cost at 1, 3 and 10 accounts

Each row prices the cheapest paid plan on each side that covers that many connected accounts, from X API's published prices on 28 September 2026.

Monthly cost of Chirpie versus X API by number of connected accounts
AccountsChirpieX API
1
$9/mo
Agent: 300 posts/mo, 1 account
Free plan also covers 1 account, at 50 posts/mo.
$4.50 in usage
Pay-per-use: 300 posts without links
The same 300 posts with a URL would be $60 in usage.
3
$19/mo
Starter: 1,000 posts/mo, 3 accounts
$15 in usage
Pay-per-use: 1,000 posts without links
X only. Two accounts on other networks mean two more integrations.
10
$49/mo
Pro: 5,000 posts/mo, 10 accounts
$75 in usage
Pay-per-use: 5,000 posts without links
The same 5,000 posts with a URL would be $1,000 in usage.
  • X sells self-serve access pay-per-use, with no subscription and no minimum spend: $0.015 per post, $0.200 per post with a URL, $0.005 per post read, and $0.001 per read of your own resources. Credits are bought up front.[1]
  • Existing Basic and Pro subscribers kept their plans when pay-per-use launched and can opt in to it.[8]
  • Chirpie includes posts without links in the plan quota and passes X's URL charge on as $0.25 per X link post on paid plans. X accounts connected with your own X API keys carry no Chirpie surcharge; X bills your developer account directly.[1]

Posting one update with X API and with Chirpie

X API (direct)[2]

typescript
// POST https://api.x.com/2/tweets. You own the OAuth refresh loop.
const accessToken = await refreshIfExpired(stored); // you write this

const res = await fetch("https://api.x.com/2/tweets", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${accessToken}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ text: "Shipped: our new changelog is live." }),
});

// A thread is one request per post, each replying to the previous id.
// Rate limits arrive as response headers you track yourself.

Chirpie (SDK)

typescript
import { ChirpieClient } from "@chirpie/sdk";

const chirpie = new ChirpieClient({ apiKey: process.env.CHIRPIE_API_KEY! });

// One call. Chirpie handles OAuth, token refresh, and per-platform formatting.
const post = await chirpie.createPost({
  account_id: "acct_your_account_id",
  text: "Shipped: our new changelog is live.",
});

console.log(post.id, post.status);

Chirpie and X API: common questions

Can Claude post to X through Chirpie?

Yes. Add Chirpie from the Claude Connectors Directory, sign in, connect your X account, and ask Claude to post or schedule. Chirpie calls the X API for you, so there is no X developer app to register unless you choose to bring your own keys.

How much does the X API cost?

X's published pay-per-use rates are $0.015 per post created, $0.200 per post containing a URL, $0.005 per post read, and $0.001 per read of your own resources, with no subscription and no minimum spend; you buy credits up front. The URL rate is the line people miss: a thousand link posts is $200.

Does Chirpie charge extra for posting links to X?

Yes. X charges $0.200 for each post with a URL, so Chirpie meters X link posts at $0.25 each on paid plans instead of raising every plan price. Free-plan accounts cannot post links to X. Connect an X account with your own X API keys and the surcharge does not apply; X bills you directly.

Is going through Chirpie cheaper than calling the X API directly?

For posts with links, roughly even: X charges $0.200 either way and Chirpie's per-post charge covers that plus everything around it. For plain posts at volume, direct can be cheaper, since $0.015 a post has no monthly floor. The bigger difference is what you do not build: scheduling, token refresh, metrics storage and thread chaining.

Does X have its own MCP server?

Yes. X documents a hosted MCP server that you reach through its xurl tool with your own X developer app, alongside a docs MCP server and an open-source reference server. It covers X only. Chirpie's hosted server at chirpie.ai/mcp posts to every platform you connect and needs no X developer app.

Sources

Facts checked on . Vendors change pricing, so check the source before deciding. Spotted something out of date? Tell us and we will correct it.

  1. [1]X API pricing: https://docs.x.com/x-api/getting-started/pricing (checked 28 September 2026)
  2. [2]X API: create a post: https://docs.x.com/x-api/posts/creation-of-a-post (checked 28 September 2026)
  3. [3]X API: replies and threads: https://docs.x.com/x-api/posts/manage-tweets/integrate (checked 28 September 2026)
  4. [4]X OAuth 2.0 authorization code: https://docs.x.com/fundamentals/authentication/oauth-2-0/authorization-code (checked 28 September 2026)
  5. [5]X API rate limits: https://docs.x.com/x-api/fundamentals/rate-limits (checked 28 September 2026)
  6. [6]X tools and libraries (XDK, xurl): https://docs.x.com/tools-and-libraries (checked 28 September 2026)
  7. [7]X MCP server: https://docs.x.com/tools/mcp (checked 28 September 2026)
  8. [8]X developer changelog: https://docs.x.com/changelog (checked 28 September 2026)
  9. [9]X API v2 endpoint index: https://docs.x.com/x-api/llms.txt (checked 28 September 2026)

Try Chirpie in a minute

One API key, one MCP link, 8 live platforms, and a listing in the Claude Connectors Directory. 50 free posts a month, no credit card.

@chirpie/sdk@chirpie/mcpchirpie CLI