# Track 3a: Cross-Border - "Gateways"
**URL:** https://talk.harmony.one/t/track-3a-cross-border-gateways/1977
**Category:** Archive
**Created:** [August 10, 2021, 12:50am UTC](https://talk.harmony.one/t/track-3a-cross-border-gateways/1977 "2021-08-10T00:50:36Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@lij](https://talk.harmony.one/u/lij)
#### Post date: [August 10, 2021, 12:50am UTC](https://talk.harmony.one/t/track-3a-cross-border-gateways/1977/1 "2021-08-10T00:50:36Z")
**Cross-Border with Fintech Integrations**
**Track 9 - Gateways. Fiat & credit cards, centralized exchanges**
* * *
Lastly, the third hackathon theme is _Cross-Border_ with fintech and social integrations. The 4 tracks — Gateways, Corporate, Regional, Impacts — emphasize the **real-world value** for business and communities across countries. Toward unbundling of banks, our developers can replicate many centralized services like fiat exchanges, over-the-counters, credit cards, or even corporate finance. Many global business and most decentralized teams are already facing the pain of scaling beyond tens of teammates and countries — dealing with employee payrolls, retirement benefits, medical insurance, and expense compensations. Fortunately, cryptography primitives like auditable privacy will make accounting and tax compliant for business on public blockchains.
Now is also the prime time to innovate on consumer marketplaces and social incentives on blockchain. **Radical markets** mean self-assessed taxation and quadratic stakes; mechanism designs focus on revealing true preferences and multi-round auctions. Both on blockchain can make retail loyalty programs or commerce logistics far more efficient — or even bring social changes in the form of basic income and retrospective funding for public goods. ([more](https://twitter.com/stse/status/1382014706991263746))
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### Author:  [@john\_whitton](https://talk.harmony.one/u/john_whitton)
#### Post date: [August 25, 2021, 2:24am UTC](https://talk.harmony.one/t/track-3a-cross-border-gateways/1977/2 "2021-08-25T02:24:11Z")
#### Track 9: Cross-Border - “Gateways”
In this category, we emphasize the **real-world value** for business and communities across countries. Toward unbundling of banks, our developers can replicate many centralized services like fiat exchanges, over-the-counters, credit cards, or even corporate finance. Many global business and most decentralized teams are already facing the pain of scaling beyond tens of teammates and countries — dealing with employee payrolls, retirement benefits, medical insurance, and expense compensations. Fortunately, cryptography primitives like auditable privacy will make accounting and tax compliant for business on public blockchains.
Now is also the prime time to innovate on consumer marketplaces and social incentives on blockchain. **Radical markets** mean self-assessed taxation and quadratic stakes; mechanism designs focus on revealing true preferences and multi-round auctions. Both on blockchain can make retail loyalty programs or commerce logistics far more efficient — or even bring social changes in the form of basic income and retrospective funding for public goods. ([more](https://twitter.com/stse/status/1382014706991263746))
Strategy: [Harmony + BUSD – payment solutions for cross-border finance #crossfi](https://www.youtube.com/watch?v=0Ztq0nyD6Wk)
Examples: [fiat](https://blog.harmony.one/sushi-and-harmony-announce-full-stack-partnership-with-4m-in-incentives/), [market analysis](https://a16z.com/2020/01/21/every-company-will-be-a-fintech-company/), [vertical saas](https://a16z.com/2020/08/04/fintech-scales-vertical-saas/)
Harmony Developer Guides: [Getting Started](https://docs.harmony.one/home/developers/getting-started), [Harmony Stack and Projects](https://docs.harmony.one/home/developers/harmony-stack), [Deployed Contracts](https://docs.harmony.one/home/developers/list-of-deployed-contracts)
Harmony Hackathon Repository : [Has sample projects and links to hackathon information](https://github.com/harmony-one/hackathon)
## Sources for Ideas
For more information on Harmony’s Ecosystem and projects of interest see [here](https://docs.harmony.one/home/developers/harmony-stack).
**Potential ideas include**
- [Wyre](https://www.sendwyre.com/)
- [Swapzone](https://swapzone.io/)
- [Changelly](https://changelly.com/)
- [switchchain](https://www.switchain.com/)
- [swft](https://www.swft.pro/#/)
- [SimpleSwap](https://simpleswap.io/)
- [simplex](https://www.simplex.com/)
- [transak](https://transak.com/)
### Research and Repositories
### Additional Developer Links
- [Developer Docs](https://dev.harmony.one/)
- [Getting Started](https://docs.harmony.one/home/developers/getting-started)
- [APIs](https://docs.harmony.one/home/developers/api)
- [Dapp Templates and Tutorials](https://docs.harmony.one/home/developers/showcases/dapp-samples-on-harmony)
- [Codebase](https://github.com/harmony-one)
- [Horizon trusted bridge smart contracts](https://github.com/harmony-one/ethhmy-bridge)
**Ready to build? Sign up at this Gitcoin blurb below!** and **Reply to this thread**
> **[buidlbox](https://app.buidlbox.io/)**
>
> Ongoing and upcoming hackathons. Every buidlers gateway into the digital frontier.
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### Author:  [@TheVanquiser](https://talk.harmony.one/u/TheVanquiser)
#### Post date: [August 31, 2021, 4:38am UTC](https://talk.harmony.one/t/track-3a-cross-border-gateways/1977/3 "2021-08-31T04:38:11Z")
yes sir, in my plan i want to use changelly to fiat gateway , but it can’t buy one right now ?
can i use it ? or other fiat gateway ?
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### Author:  [@Jacksteroo](https://talk.harmony.one/u/Jacksteroo)
#### Post date: [August 31, 2021, 4:51am UTC](https://talk.harmony.one/t/track-3a-cross-border-gateways/1977/4 "2021-08-31T04:51:13Z")
@TheVanquiser take a look at a number of Gateways today [Fiat Gateways - Harmony](https://docs.harmony.one/home/general/ecosystem/partners/fiat-gateways) … where would you take ONE from here onwards?
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### Author:  [@TheVanquiser](https://talk.harmony.one/u/TheVanquiser)
#### Post date: [September 8, 2021, 1:30pm UTC](https://talk.harmony.one/t/track-3a-cross-border-gateways/1977/5 "2021-09-08T13:30:43Z")
Okay sir, before you give me this information I want to use changelly but after see this i use `RAMP`for the gateway
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### Author:  [@Jacksteroo](https://talk.harmony.one/u/Jacksteroo)
#### Post date: [November 27, 2021, 11:07am UTC](https://talk.harmony.one/t/track-3a-cross-border-gateways/1977/7 "2021-11-27T11:07:01Z")