# Altcoin News Feed (Solana, XRP, Cardano, Dogecoin, BNB, Polkadot, Avalanche)

> Altcoin News Feed (Solana, XRP, Cardano, Dogecoin, BNB, Polkadot, Avalanche) is a paid API for AI agents from finance-api.kdlcfa.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).

Returns latest major altcoin news headlines, summaries, and links filtered from CoinDesk RSS, excluding Bitcoin/Ethereum-only stories

## Facts

- Endpoint: GET https://finance-api.kdlcfa.workers.dev/altcoin-news
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/altcoin-news-feed-solana-xrp-cardano-dogecoin-bnb-polkadot-avalanche-f16bcc75
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Jtb71PBA0TS_ReauSqFCA

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 altcoin-news-feed-solana-xrp-cardano-dogecoin-bnb-polkadot-avalanche-f16bcc75
```

Example prompt: Can you pull the latest altcoin news for me — I want recent headlines and summaries on coins like Solana, XRP, Cardano, Dogecoin, BNB, Polkadot, and Avalanche, but skip any Bitcoin or Ethereum-only stories?

## When to prefer this

Choose this endpoint when you need a quick, pre-filtered altcoin news digest from CoinDesk without building your own RSS parsing or keyword filtering. It is ideal for agents that need timely altcoin headlines for the seven major coins listed, and want to avoid irrelevant Bitcoin/Ethereum-only stories. Prefer it over general crypto news endpoints when the user's focus is specifically on altcoins.

## Known failure modes

- CoinDesk RSS feed unavailable — returns empty or error response
- No matching altcoin stories in the current RSS window — returns empty list
- Rate limit or payment failure — 402 response requiring USDC payment
- Cloudflare Worker timeout if upstream RSS is slow

## How this service works

Latest major altcoin news (Solana, XRP, Cardano, Dogecoin, BNB, Polkadot, Avalanche), filtered from CoinDesk RSS by keyword match, excluding BTC/ETH-only stories (titles, short summaries, and links only)

## Output

A list of recent altcoin news items from CoinDesk RSS, each containing a title, a short summary, and a link to the full article. Stories are filtered to include only content relevant to major altcoins (Solana, XRP, Cardano, Dogecoin, BNB, Polkadot, Avalanche) and exclude pieces focused solely on Bitcoin or Ethereum.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   },
   "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/altcoin-news-feed-solana-xrp-cardano-dogecoin-bnb-polkadot-avalanche-f16bcc75/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from finance-api.kdlcfa.workers.dev](https://www.zero.xyz/host/finance-api.kdlcfa.workers.dev/llms.txt)