# Mempool

6 endpoints on Mempool. Every one returns the same response shape and has a flat, published price in credits.

Category: [Finance & markets](https://onekey.dev/docs/categories/finance.md) · [Overview page](https://onekey.dev/platforms/mempool)

## Endpoints

| Endpoint | What it does | Cost | Status |
| --- | --- | --- | --- |
| [`address`](https://onekey.dev/docs/api/mempool/address.md) | Address totals (mempool.space). | 1 credit | beta |
| [`difficulty_adjustment`](https://onekey.dev/docs/api/mempool/difficulty_adjustment.md) | Bitcoin difficulty adjustment progress and estimate. | 1 credit | beta |
| [`fees_recommended`](https://onekey.dev/docs/api/mempool/fees_recommended.md) | Recommended fee rates (sat/vB) by urgency. | 1 credit | beta |
| [`prices`](https://onekey.dev/docs/api/mempool/prices.md) | Bitcoin price in major fiat currencies. | 1 credit | beta |
| [`recent_blocks`](https://onekey.dev/docs/api/mempool/recent_blocks.md) | Recent Bitcoin blocks (mempool.space v1 format). | 5 credits | beta |
| [`tx`](https://onekey.dev/docs/api/mempool/tx.md) | Bitcoin transaction summary by txid (mempool.space). | 1 credit | beta |

Every endpoint page has a **Field mapping** section showing which source field becomes which [unified field](https://onekey.dev/docs/schema.md) (fixed schema) or platform-specific `ext.` field.