# ReadX Hashtag Timeline API

> ReadX Hashtag Timeline API is a paid API for AI agents from readx.sh, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-08).

Fetches tweets and timeline data for a given Twitter/X hashtag, paid per call via x402 micropayments

## Facts

- Endpoint: GET https://readx.sh/api/hashtag/%7Btag%7D
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-08
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/readx-hashtag-timeline-api-662d4277
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iAReMnLu5131KAmdXIo-P

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-hashtag-timeline-api-662d4277
```

Example prompt: Can you pull the latest tweets for the hashtag #AI from X/Twitter and show me what people are posting about it?

## When to prefer this

Use this endpoint when you need to retrieve public tweets by hashtag from X/Twitter without managing API keys, and you can pay $0.05 USDC per call via x402 micropayments on Base or Solana. Ideal for agents that need ad-hoc or low-volume hashtag monitoring without a Twitter developer account.

## Known failure modes

- Invalid or missing hashtag returns an error response
- Payment failure or insufficient USDC balance blocks the request
- Hashtag with no recent tweets may return empty data
- Rate limiting or temporary X/Twitter API downtime causes failures
- Malformed tag parameter causes a bad request error

## How this service works

ReadX is a read-only X/Twitter JSON API. Profiles, timelines, tweets, search, lists, followers & following — pay per call with x402 micropayments in USDC on Base or Solana. No API keys.

## Output

A JSON object with a code field (0 for success) and a data field containing tweets and timeline information associated with the specified hashtag, including tweet text, authors, timestamps, and engagement metrics.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "code": 0,
  "data": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/readx-hashtag-timeline-api-662d4277/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)