# Hergert Synthora Crypto News Feed

> Hergert Synthora Crypto News Feed is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Fetches aggregated cryptocurrency news headlines with sentiment scores from major crypto media sources, optionally filtered by asset ticker

## Facts

- Endpoint: POST https://api.hergertsynthora.com/v1/cryptonews
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hergert-synthora-crypto-news-feed-d1973cd1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0H4By_c1k7O4R079XV_f3

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 hergert-synthora-crypto-news-feed-d1973cd1 -d '<json body>'
```

Example prompt: Pull the latest 15 Bitcoin headlines from across CoinDesk, CoinTelegraph, and Decrypt and tell me the overall sentiment score right now.

## When to prefer this

Choose this endpoint when you need aggregated, multi-source crypto news headlines with pre-computed sentiment scores for a specific asset or the broad market. It is preferable to scraping individual news sites manually, and it consolidates CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, and Bitcoin Magazine into a single call. Best suited for real-time trading context, market monitoring, or briefing generation where sentiment polarity matters.

## Known failure modes

- Invalid or unrecognized asset ticker returns empty results or error
- Limit value outside 1-50 range rejected with validation error
- Upstream news source unavailable causes partial or empty results
- Payment failure (x402) prevents access to the endpoint
- Stale data if upstream sources are delayed or rate-limited

## How this service works

SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish.very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed.

## Output

A JSON object containing a list of headlines (up to the requested limit), each with a title, source name, article URL, publication timestamp, and per-article sentiment label (e.g. very_bullish, bearish). Also includes an overall numeric sentiment score, an overall sentiment label, the asset filter applied, the number of results returned, the list of sources queried, and a generated_at timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "asset": {
   "type": "string",
   "description": "Optional ticker to filter headlines, e.g. BTC, ETH, SOL"
  },
  "limit": {
   "type": "integer",
   "maximum": 50,
   "minimum": 1,
   "description": "Max headlines to return (default 10)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hergert-synthora-crypto-news-feed-d1973cd1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hergertsynthora.com](https://www.zero.xyz/host/api.hergertsynthora.com/llms.txt)