# clonecho Price Attestation Oracle

> clonecho Price Attestation Oracle is a paid API for AI agents from clonecho.builda.company, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Returns a cryptographically-attested live price for a crypto or FX asset from a named source with a timestamp, acting as a data oracle.

## Facts

- Endpoint: POST https://clonecho.builda.company/x402/price-attest
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/clonecho-price-attestation-oracle-5f0aeab1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QKcADNVbV3al1gV-cYHhu

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 clonecho-price-attestation-oracle-5f0aeab1 -d '<json body>'
```

Example prompt: Can you get me an attested, timestamped price for bitcoin in USD right now — I need the source name and timestamp included so I can use it as a verified price record?

## When to prefer this

Choose this endpoint when you need a price with provenance — not just a raw number but an attested record that includes the source name and timestamp, useful for auditing, DeFi integrations, dispute resolution, or any context where you need to prove what the price was at a specific moment. Prefer it over generic price APIs when attestation and verifiability matter.

## Known failure modes

- Unsupported asset symbol returns an error or empty result
- Unsupported vs currency returns an error
- Missing required query parameters (?asset= or ?vs=) returns a 400-style error
- Upstream price source unavailable causes a fetch failure
- Network timeout if the named source is slow to respond

## How this service works

PRICE ATTESTATION: attest a live crypto or FX price (?asset=bitcoin&vs=usd) from a named source with timestamp — a data oracle. Returns JSON.

## Output

A JSON object containing the attested current price of the requested asset (e.g. bitcoin) denominated in the specified quote currency (e.g. usd), along with the named data source and a precise timestamp of when the price was fetched — suitable for use as a verifiable price record or oracle data point.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clonecho-price-attestation-oracle-5f0aeab1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from clonecho.builda.company](https://www.zero.xyz/host/clonecho.builda.company/llms.txt)