# Black Friday is here – Get Up to 60% OFF UniSat API Yearly Plans!

<figure><img src="/files/qk1EGjO5fuXG5apaK3Ea" alt=""><figcaption></figcaption></figure>

👉 <https://unisat.io/open-api>

⏳ Nov 28, 08:00 → Dec 23, 08:00 (UTC)

🚨 New Feature: UniSat API now supports sub-1 sat/vB mode!

* Broadcast sub-1 sat/vB transaction
* Query up to 500 sub-1 sat/vB UTXOs per request
* Inscribing with custom sub-1 sat/vB fees

🔗 <https://github.com/unisat-wallet/unisat-dev-docs/blob/master/open-api/release-notes/2025-11-28-btc-v29-upgrade.md>

💡 Why Choose UniSat API?

* Proven Performance: 2+ years stable | 11B+ requests served | 500+ RPS capability
* Advanced Query Support: Ordinals, Runes, Alkanes & more – full history, balance, UTXO & On-chain data
* Flexible Plans: Specialist → Enterprise → Pay-as-you-go, all on sale


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.unisat.io/misc/events/api-events/black-friday-is-here-get-up-to-60-off-unisat-api-yearly-plans.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.