<p>I've listed some public feerate APIs by block explorers and payment processors below. Purposefully leaving out APIs from wallets, since they don't advertise their APIs. I leave out Bitcoin Core's <code>estimatesmartfee</code> RPC, which I don't consider public (<em>as in reachable over the web by everyone</em>).</p>

<p>The list is sorted lexicographically. Disclosure: This Q&amp;A is based on a <a href="https://b10c.me/A-list-of-public-feerate-estimator-APIs/" rel="nofollow noreferrer">blog post</a> by me.</p>

<hr>

<h3>bitcoiner.live API</h3>

<p>URL: <a href="https://bitcoiner.live/api/fees/estimates/latest" rel="nofollow noreferrer">https://bitcoiner.live/api/fees/estimates/latest</a><br>
Note: Estimates for confirmation in 1/2, 1, 2, 3, 6, 12 and 24 hours.<br>
Unit: <code>sat/vByte</code>  </p>

<hr>

<h3>Bitgo API</h3>

<p>URL: <a href="https://www.bitgo.com/api/v2/btc/tx/fee" rel="nofollow noreferrer">https://www.bitgo.com/api/v2/btc/tx/fee</a><br>
Note: Estimates for different block targets based on current mempool.<br>
Unit: <code>sat/kB</code></p>

<hr>

<h3>Bitpay Insight API</h3>

<p>URL: <a href="https://insight.bitpay.com/api/utils/estimatefee?nbBlocks=2,4,6" rel="nofollow noreferrer">https://insight.bitpay.com/api/utils/estimatefee?nbBlocks=2,4,6</a><br>
Note: Estimates for different block targets based on <code>nbBlocks</code> parameter.<br>
Unit: <code>BTC/kB</code></p>

<hr>

<h3>Blockchain.info API</h3>

<p>URL: <a href="https://api.blockchain.info/mempool/fees" rel="nofollow noreferrer">https://api.blockchain.info/mempool/fees</a><br>
Note: Estimates for a <em>regular</em> and <em>priority</em> feerate are provided.<br>
Unit: <code>sat/Byte</code></p>

<hr>

<h3>Blockchair API</h3>

<p>URL: <a href="https://api.blockchair.com/bitcoin/stats" rel="nofollow noreferrer">https://api.blockchair.com/bitcoin/stats</a><br>
Note: A single estimate for a feerate is provided.<br>
Unit: <code>sat/Byte</code></p>

<hr>

<h3>BlockCypher API</h3>

<p>URL: <a href="https://api.blockcypher.com/v1/btc/main" rel="nofollow noreferrer">https://api.blockcypher.com/v1/btc/main</a><br>
Note: Estimates for a <em>high</em>, <em>medium</em> and <em>low</em> feerate are provided.<br>
Unit: <strong><code>sat/kB</code></strong></p>

<hr>

<h3>Blockstream.info API</h3>

<p>URL: <a href="https://blockstream.info/api/fee-estimates" rel="nofollow noreferrer">https://blockstream.info/api/fee-estimates</a><br>
Note: Estimates for confirmation in 2, 3, 4, 6, 10, 20, 144, 504 and 1008 blocks.<br>
Unit: <code>sat/vByte</code></p>

<hr>

<h3>BTC.com API</h3>

<p>URL: <a href="https://btc.com/service/fees/distribution" rel="nofollow noreferrer">https://btc.com/service/fees/distribution</a><br>
Note: A single estimate for a 'one block' feerate is provided.<br>
Unit: <code>sat/vByte</code></p>

<hr>

<h3>earn.com API</h3>

<p>URL: <a href="https://bitcoinfees.earn.com/api/v1/fees/recommended" rel="nofollow noreferrer">https://bitcoinfees.earn.com/api/v1/fees/recommended</a><br>
Note: Estimates for the fastest confirmation, a confirmation in half an hour and a hour are provided.<br>
Unit: <code>sat/vByte</code></p>

CC BY-SA 4.0
2019-07-30T18:47:46.940Z
2019-07-30T18:47:46.940Z
0xb10c
<p>Some company's, block explorers and payment processors offer a public API for feerate estimations. Is there a list of publicly available feerate estimation APIs?</p>

CC BY-SA 4.0
2019-08-02T14:40:50.797Z
You seem to have asked this question so that you could promote your own blog post/content.
Lenwood
CC BY-SA 4.0
2019-08-02T14:54:37.167Z
I've created this question to share my knowledge about this topic with the community. [This is encouraged by the StackExchange platform](https://stackoverflow.blog/2011/07/01/its-ok-to-ask-and-answer-your-own-questions/). While I disclose that the answer is based on other content by me, there there is no need to open / read it to find the answer to the question.
0xb10c
<transaction-fees><api><fee-estimation>
What feerate estimation APIs are there?
0xb10c
# What feerate estimation APIs are there?

(Asked by: username_0 on 2019-07-30)

Some company's, block explorers and payment processors offer a public API for feerate estimations. Is there a list of publicly available feerate estimation APIs?

**Tags:** transaction-fees, api, fee-estimation

> **Comments:**
> **username_1**: You seem to have asked this question so that you could promote your own blog post/content.  
> **username_0**: I've created this question to share my knowledge about this topic with the community. [This is encouraged by the StackExchange platform](https://stackoverflow.blog/2011/07/01/its-ok-to-ask-and-answer-your-own-questions/). While I disclose that the answer is based on other content by me, there there is no need to open / read it to find the answer to the question.  

---

## 1 answers

### Answer by username_0 on 2019-07-30. Score: 4 | Accepted answer

I've listed some public feerate APIs by block explorers and payment processors below. Purposefully leaving out APIs from wallets, since they don't advertise their APIs. I leave out Bitcoin Core's `estimatesmartfee` RPC, which I don't consider public (*as in reachable over the web by everyone*).

The list is sorted lexicographically. Disclosure: This Q&A is based on a [blog post](https://b10c.me/A-list-of-public-feerate-estimator-APIs/) by me.

---

### bitcoiner.live API

URL: <https://bitcoiner.live/api/fees/estimates/latest>  
Note: Estimates for confirmation in 1/2, 1, 2, 3, 6, 12 and 24 hours.  
Unit: `sat/vByte`

---

### Bitgo API

URL: <https://www.bitgo.com/api/v2/btc/tx/fee>  
Note: Estimates for different block targets based on current mempool.  
Unit: `sat/kB`

---

### Bitpay Insight API

URL: <https://insight.bitpay.com/api/utils/estimatefee?nbBlocks=2,4,6>  
Note: Estimates for different block targets based on `nbBlocks` parameter.  
Unit: `BTC/kB`

---

### Blockchain.info API

URL: <https://api.blockchain.info/mempool/fees>  
Note: Estimates for a *regular* and *priority* feerate are provided.  
Unit: `sat/Byte`

---

### Blockchair API

URL: <https://api.blockchair.com/bitcoin/stats>  
Note: A single estimate for a feerate is provided.  
Unit: `sat/Byte`

---

### BlockCypher API

URL: <https://api.blockcypher.com/v1/btc/main>  
Note: Estimates for a *high*, *medium* and *low* feerate are provided.  
Unit: **`sat/kB`**

---

### Blockstream.info API

URL: <https://blockstream.info/api/fee-estimates>  
Note: Estimates for confirmation in 2, 3, 4, 6, 10, 20, 144, 504 and 1008 blocks.  
Unit: `sat/vByte`

---

### BTC.com API

URL: <https://btc.com/service/fees/distribution>  
Note: A single estimate for a 'one block' feerate is provided.  
Unit: `sat/vByte`

---

### earn.com API

URL: <https://bitcoinfees.earn.com/api/v1/fees/recommended>  
Note: Estimates for the fastest confirmation, a confirmation in half an hour and a hour are provided.  
Unit: `sat/vByte`


---

