The fastest and the most reliable JSON-RPC/WS Ethereum API

Fast, Reliable, Fault-tolerant JSON-RPC/WS Ethereum API 

Scalability

Our API is on top of the large cluster of fast, distributed Ethereum blockchain nodes. You can focus on scaling your products.

Speed

Get a new block as the first.. Send transaction directly to be placed earlier in the order when constructing the block.

Anonymity

No KYC. No user logs. Payments using ETH. Optional email, no newsletters. Username signup option.

0 sec

Get the most recent block 1-5 seconds before other providers

100 st

Send the transaction to be placed earlier in the order when constructing the block

0 x

Get 3-4x more API calls for the same price, or cut up to 91% of current costs

Performance Test 1

VERSUS benchmarking tool compares workload across different node implementations and Web3 providers so you can make data-based decisions. Tests run using the VERSUS tool are 99% reproducible.

				
					$ date 
Fri Jul 23 22:01:29 CEST 2021
$ ethspam | versus --stop-after=100 --concurrency=200 "http://api.zmok.io/mainnet/XXXX"
    "https://mainnet.infura.io/v3/XXX" "https://cloudflare-eth.com"
				
			
				
					0. "http://api.zmok.io/mainnet/XXX"

   Requests:   1048.41 per second
   Timing:     0.1908s avg, 0.0533s min, 1.6509s max
               0.2285s standard deviation

   Percentiles:
     25% in 0.1043s
     50% in 0.1287s
     75% in 0.1396s
     90% in 0.5767s
     95% in 0.6424s
     99% in 1.6509s

   Errors: 0.00%
				
			
				
					1. "https://mainnet.infura.io/v3/XXX"

   Requests:   381.15 per second
   Timing:     0.5247s avg, 0.1797s min, 0.5962s max
               0.1165s standard deviation

   Percentiles:
     25% in 0.5009s
     50% in 0.5799s
     75% in 0.5817s
     90% in 0.5833s
     95% in 0.5843s
     99% in 0.5962s

   Errors: 0.00%
				
			
				
					2. "https://cloudflare-eth.com"

   Requests:   394.13 per second
   Timing:     0.5075s avg, 0.2860s min, 0.9280s max
               0.1162s standard deviation

   Percentiles:
     25% in 0.4319s
     50% in 0.4702s
     75% in 0.5643s
     90% in 0.6910s
     95% in 0.7510s
     99% in 0.9280s

   Errors: 0.00%
				
			

Performance Test 2

BLOCK-SPEED-COMPARISON benchmark of different API providers on how fast they get a new block.

				
					$ date
Tue Oct 19 12:13:25 UTC 2021
$ git clone https://github.com/zmok-io/block-speed-comparison.git 
Cloning into 'block-speed-comparison'...
remote: Enumerating objects: 27, done.
remote: Counting objects: 100% (27/27), done.
remote: Compressing objects: 100% (22/22), done.
remote: Total 27 (delta 12), reused 14 (delta 5), pack-reused 0
Unpacking objects: 100% (27/27), 80.00 KiB | 3.81 MiB/s, done.

$ cd block-speed-comparison/
$ cat README.md
...
$ npm start
				
			
				
					---------------------------------------------------
New block from ZMOK-WS #13448096 -> WINNER
Received block from ZMOK-FR-WS #13448096, LAG time: 0.001 sec
Waiting ...
Received block from ZMOK #13448096, LAG time: 0.358 sec
Received block from ALCHEMY-WS #13448095, LAG blocks: 1
Received block from MORALIS-WS #13448096, LAG time: 1.218 sec
Waiting ...
Received block from ZMOK-FR #13448096, LAG time: 1.273 sec
Received block from MORALIS #13448096, LAG time: 1.28 sec
Received block from INFURA #13448096, LAG time: 1.288 sec
Received block from ALCHEMY #13448095, LAG blocks: 1
Waiting ...
Waiting ...
Waiting ...
Waiting ...
Waiting ...
Waiting ...
Waiting ...
Waiting ...
Waiting ...
Waiting ...
Waiting ...
				
			
				
					------------------------------------------------------
New block from ZMOK-WS #13448097 -> WINNER
Received block from ZMOK-FR-WS #13448097, LAG time: 0.001 sec
Waiting ...
Received block from MORALIS-WS #13448097, LAG time: 0.067 sec
Received block from ZMOK #13448097, LAG time: 0.175 sec
Waiting ...
Received block from ZMOK-FR #13448097, LAG time: 1.07 sec
Received block from MORALIS #13448097, LAG time: 1.075 sec
Received block from INFURA #13448097, LAG time: 1.084 sec
Waiting ...
Waiting ...
Received block from ALCHEMY-WS #13448096, LAG blocks: 1
Received block from ALCHEMY #13448096, LAG blocks: 1
Waiting ...
Received block from INFURA-WS #13448096, LAG blocks: 1
Waiting ...
Received block from INFURA-WS #13448097, LAG time: 5.275 sec
Waiting ...
Waiting ...
Waiting ...
Received block from ALCHEMY-WS #13448097, LAG time: 8.087 sec
Received block from ALCHEMY #13448097, LAG time: 8.142 sec
				
			

PRICING

Built for individuals, small teams, as well as enterprises.

  STANDARD speed nodes SUPER-FAST nodes
Package Free Scaling Massive Enterprise Front-Running
Price 0 USD/mo
or
0 ETH/mo
54 USD/mo
or
0.014 ETH/mo
540 USD/mo
or
0.14 ETH/mo
Custom 900 USD/mo
or
0.24 ETH/mo
API calls 5M/mo 15M/mo 300M/mo Unlimited as core package
API calls Rate limit
10/sec 50/sec 200/sec Unlimited as core package
Priority Support No Yes Yes Yes Yes
Number of Apps
3 Unlimited Unlimited Unlimited Unlimited
 
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ZMOK fast nodes are always for free, but with rate limits. No trial, no credit card, no email needed. If you’re ready to find out how easily you can connect to Ethereum blockchain and benefit from having fast nodes immediately, start your first app now.

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