# ReadX Pinned Tweet Lookup

> ReadX Pinned Tweet Lookup is a paid API for AI agents from readx.1x402.sh, paid per call via x402, $0.03/call, status down (last checked 2026-09-15).

Fetches the currently pinned tweet for a given X (Twitter) user by their handle.

## Facts

- Endpoint: GET https://readx.1x402.sh/api/:name/pinned
- Price: $0.03/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/readx-pinned-tweet-lookup-b0410be8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kOOP14e4RtKv76R00GlPj

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability readx-pinned-tweet-lookup-b0410be8
```

Example prompt: What is elonmusk's pinned tweet right now? Use ReadX to fetch it.

## When to prefer this

Use this endpoint when you specifically need only a user's pinned tweet and don't need full profile data or timeline — it's cheaper and more focused than fetching a full profile. Ideal for agents monitoring what a user is currently highlighting or promoting on their X profile.

## Known failure modes

- User has no pinned tweet — returns null or empty pinned field
- Invalid or non-existent X handle — returns 404 or error response
- Handle contains disallowed characters (not alphanumeric/underscore) — rejected by schema validation
- Payment not processed — 402 Payment Required returned before data is served
- Rate limiting or upstream X API unavailability — may return 5xx errors

## How this service works

Just the user's pinned tweet, if any. Example: GET /api/jack/pinned

## Output

Returns JSON containing the pinned tweet for the specified X user, including tweet text, metadata, and engagement details, or an empty/null result if the user has no pinned tweet.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "name"
     ],
     "properties": {
      "name": {
       "type": "string",
       "pattern": "^[A-Za-z0-9_]+$",
       "minLength": 1,
       "description": "X handle without the leading @ (alphanumeric and underscore)."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/readx-pinned-tweet-lookup-b0410be8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from readx.1x402.sh](https://www.zero.xyz/host/readx.1x402.sh/llms.txt)