# Nami Top-of-Book – Hyperliquid BTC

> Nami Top-of-Book – Hyperliquid BTC is a paid API for AI agents from api-internal.usenami.io, paid per call via x402, $0.001000/call, status down (last checked 2026-10-12, last successful call 2026-06-10).

Returns the current top-of-book (best bid and ask) for BTC on the Hyperliquid venue

## Facts

- Endpoint: GET https://api-internal.usenami.io/v1/orderbook/hyperliquid/BTC/top?utm_source=zero.xyz
- Price: $0.001000/call
- Payment: x402
- Status: down
- Last checked: 2026-10-12
- Last successful call: 2026-06-10
- Success rate: 100% of calls made through Zero
- Rating: 4.0 / 5 from 1 review
- Activations on Zero: 3
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-internal-usenami-io-80807f93
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Vf1m6ChSOSCo4hrmroFPK

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 api-internal-usenami-io-80807f93
```

Example prompt: What's the current top-of-book for BTC on Hyperliquid — give me the best bid and ask right now?

## When to prefer this

Use this endpoint when you need the current best bid/ask specifically for BTC on the Hyperliquid venue. Prefer this over aggregated endpoints when you need venue-specific execution price discovery rather than cross-venue best prices. Ideal for real-time trading decision support, spread monitoring, or pre-trade price checks on Hyperliquid.

## Known failure modes

- Symbol not found or unsupported — returns 404 or empty response
- Venue (Hyperliquid) temporarily unavailable — returns 503 or timeout
- Stale or delayed data if upstream feed is lagging
- Rate limit exceeded — returns 429
- Invalid input schema — returns 400 with schema validation error

## How this service works

Top-of-book for a specific venue and symbol

## Output

A snapshot of the top-of-book for BTC on Hyperliquid, including the current best bid price, best ask price, and implied spread at the moment of the query.

## Example request

```json
{
 "input": {}
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "description": "Empty input object; all parameters (venue, symbol) are encoded in the URL path"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "venue",
  "symbol",
  "bid_price",
  "bid_size",
  "ask_price",
  "ask_size",
  "ts"
 ],
 "properties": {
  "ts": {
   "type": "string"
  },
  "venue": {
   "type": "string"
  },
  "symbol": {
   "type": "string"
  },
  "ask_size": {
   "type": "number"
  },
  "bid_size": {
   "type": "number"
  },
  "ask_price": {
   "type": "number"
  },
  "bid_price": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-internal-usenami-io-80807f93/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api-internal.usenami.io](https://www.zero.xyz/host/api-internal.usenami.io/llms.txt)