As Polkadot’s largest and most cost efficient infrastructure provider, this proposal will support OnFinality’s free public API services for the Polkadex community. Since our inception in November 2020 we have a long track record focussing on three key areas; performance/reliability, providing more value from our Ultimate API service, and cost optimisation.

## Service Details

In the last 5 months (2023-07-01 and 2023-11-31) our Polkadex API service has:

- Served a total of 312 million (311,972,614) responses
- Accumulated over 5,000 GB of data egress 
- The highest daily total was 22 million responses (21,902,488)  in a single 24 hour period
- Our rolling 7 day average at the end of this period was over 2 million responses each day
- All time totals for Polkadex is 1,114 million (1,144,478,333) since March, 2022

Recently, Polkadex’s rolling average has increased to 5 million per day. As such, we are proposing a larger service in Q1 & Q2 2024 to manage the increased load.

At the end of this period the 90 day uptime for Polkadex was 99.96%. You can always see live data of our API service on our public status page.

## Costings

We are using a fixed price to allow us to bill in advance and to simplify the administration of this proposal, as well as provide cost clarity to both parties. This proposal includes combined running costs for our infrastructure for Polkadex for all of Q1 and Q2 2024. By paying 6 months up-front we will apply a 15% discount to our services.

The total combined running cost is USD $5,610. This is all inclusive of capital and operating expenses, administration time from OnFinality DevOps, onboarding costs, backup costs, and all other monitoring and right-sizing by our team.

[Full proposal can be found here](https://docs.google.com/document/d/18KTjA4nDmGqtOLHvfyy066x5GhadtUoGwpjb80zSOcI/edit?usp=sharing)

- **Problem Statement:** Providing free public API services for the Polkadex community by OnFinality.
- **Significance:** Supporting Polkadex's increased API service demand with a 90-day uptime of 99.96%.
- **Proposed Solution:** Offering a larger service in Q1 & Q2 2024 with a 15% discount for 6 months upfront payment.
- **Expected Outcomes:** Total combined running cost of USD $5,610 inclusive of all expenses for improved service delivery.

#74 High Performance Public Infrastructure (Q1 & Q2, 2024)