# SYNTHORA Crypto Price History Time-Series (CoinGecko)

> SYNTHORA Crypto Price History Time-Series (CoinGecko) is a paid API for AI agents from coingecko-crypto-price-history.hergertsynthora.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Fetches historical daily price, market-cap, and volume time-series data for any cryptocurrency in a specified fiat currency via CoinGecko's market_chart endpoint.

## Facts

- Endpoint: POST https://coingecko-crypto-price-history.hergertsynthora.com/service
- 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/synthora-crypto-price-history-time-series-coingecko-432c993e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_j27mN4FxiaxSVtpynLDcD

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 synthora-crypto-price-history-time-series-coingecko-432c993e -d '<json body>'
```

Example prompt: Pull the daily price and market cap history for Bitcoin in USD over the last 90 days from CoinGecko — I need a full time-series with daily interval for my backtesting bot.

## When to prefer this

Choose this endpoint when you need historical daily price, market cap, and volume time-series data for a cryptocurrency without requiring a CoinGecko API key, especially for backtesting, trend analysis, or agent-driven crypto analytics. Prefer this over direct CoinGecko API calls when you want a keyless, pay-per-call micro-payment model compatible with x402 agent payment flows.

## Known failure modes

- Invalid coin ID returns an error or empty result
- Unsupported vs_currency value may cause a CoinGecko API error
- Very large day ranges may result in rate limiting or timeout
- Missing required fields (id, days, vs_currency) may cause a 400 or empty response
- CoinGecko API downtime propagates as an error upstream

## How this service works

Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call via x402 on Base. No charge on upstream failure.

## Output

Returns a JSON object with ok:true and a result containing time-stamped arrays for price, market cap, and trading volume corresponding to the requested coin, currency, and time range — structured as a CoinGecko market_chart response.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "description": "Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtest"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "coingecko_crypto_price_history",
  "result": {},
  "receipt": {
   "alg": "ed25519"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-crypto-price-history-time-series-coingecko-432c993e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coingecko-crypto-price-history.hergertsynthora.com](https://www.zero.xyz/host/coingecko-crypto-price-history.hergertsynthora.com/llms.txt)