# Recommended Bitcoin Fee Rates Right Now

> Recommended Bitcoin Fee Rates Right Now is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-01).

Returns current recommended Bitcoin transaction fee rates (sat/vByte) for different confirmation speed tiers

## Facts

- Endpoint: POST https://twin.unykorn.org/btc-fees?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/recommended-bitcoin-fee-rates-right-now-d928de35
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2og0Ob2PLE4Fcascr-kNx

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 recommended-bitcoin-fee-rates-right-now-d928de35 -d '<json body>'
```

Example prompt: What are the current recommended Bitcoin fee rates right now — I need to know how many sats per vByte to use for a fast, medium, and slow confirmation?

## When to prefer this

Choose this endpoint when you need a real-time, pay-per-call Bitcoin fee rate lookup with x402 micropayment billing and an auditable receipt. It suits agents that need current sat/vByte recommendations on demand without maintaining a mempool node themselves. Prefer alternatives (free public mempool APIs) if cost per call matters more than the receipt/audit trail or x402 integration.

## Known failure modes

- Bitcoin node or mempool data source temporarily unavailable — returns error or stale data
- Payment not processed correctly — 402 response if x402 payment header is missing or invalid
- Rate limiting or quota exceeded on the underlying fee data provider
- Network timeout if Bitcoin mempool query takes too long

## How this service works

Recommended Bitcoin fee rates right now — Genesis402 / UnyKorn Operator Network

## Output

A JSON response containing recommended Bitcoin fee rates (likely tiered by confirmation speed such as next block, ~30 min, and economy), along with a receipt object including a transaction hash, USD amount charged, and a receipt ID for auditing the pay-per-call charge.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "params": {
   "type": "object",
   "properties": {}
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "type": "btc-fees",
  "receipt": {
   "tx_hash": "0x<64hex>",
   "amount_usd": 0.002,
   "receipt_id": "g402-<16hex>"
  },
  "generated_at": "<iso8601>"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/recommended-bitcoin-fee-rates-right-now-d928de35/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from twin.unykorn.org](https://www.zero.xyz/host/twin.unykorn.org/llms.txt)