# ReadX Article Lookup

> ReadX Article Lookup is a paid API for AI agents from readx.sh, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Fetches the full content of an X (Twitter) long-form article by its wrapper tweet ID

## Facts

- Endpoint: GET https://readx.sh/api/articles/:id
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/readx-article-lookup-32a06e42
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WIa68NKwrKnfRfEbYQX4R

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-article-lookup-32a06e42
```

Example prompt: Can you pull the full content of that X article with tweet ID 1234567890 from ReadX?

## When to prefer this

Use this endpoint when you need to retrieve the full content of an X (Twitter) long-form article (also known as an X Note or article post) and you have its wrapper tweet ID. Prefer this over scraping X directly since it provides structured JSON output at a low fixed cost of $0.01 USDC per call.

## Known failure modes

- Invalid or non-existent tweet ID returns a 404 or error response
- Tweet ID corresponds to a regular tweet, not a long-form article
- Payment not processed results in 402 Payment Required response
- Rate limiting or quota exceeded on the API
- Network timeout for unavailable or deleted articles

## How this service works

An X article (long-form post) by its wrapper tweet id (public). Example: GET /api/articles/1

## Output

A JSON object containing the full content of the X long-form article associated with the given wrapper tweet ID, including article text, metadata, and related tweet information.

## 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": [
      "id"
     ],
     "properties": {
      "id": {
       "type": "string",
       "minLength": 1,
       "description": "The wrapper tweet id for the article (public lookup)."
      }
     }
    }
   },
   "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-article-lookup-32a06e42/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from readx.sh](https://www.zero.xyz/host/readx.sh/llms.txt)