> For the complete documentation index, see [llms.txt](https://ura-labs-1.gitbook.io/ura-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ura-labs-1.gitbook.io/ura-documentation/welcome-to-ura.md).

# Welcome to Ura

Privacy onboarding and shared transaction-capacity infrastructure for Midnight.

Ura Labs is building shared transaction-capacity and privacy-onboarding infrastructure for Midnight.

The Privacy Bridge and Capacity Protocol are one infrastructure layer:

* The **Privacy Bridge** brings verified assets and execution requests into Midnight.
* The **Capacity Protocol** supplies, allocates and accounts for the DUST capacity required to execute private transactions.
* The **Relay Club** is the provider-facing participation layer.
* The **warm relayer** is one execution component, not the complete protocol.

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th><th data-hidden data-card-cover data-type="image">Cover image</th></tr></thead><tbody><tr><td><strong>01</strong></td><td><strong>Privacy Bridge</strong></td><td>Follow the Mithril-gated Cardano-to-Midnight flow.</td><td><a href="/ura-documentation/privacy-bridge.md">Privacy Bridge</a></td><td><a href="https://1748825992-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FINAVQvcBCGwClq336pmc%2Fuploads%2FZCTgSHeDn0q4MUCjY6kz%2FScherm%C2%ADafbeelding%202026-08-27%20om%2002.04.58.png?alt=media&amp;token=b48fc892-8b26-4d95-9a85-4ed22f7dbabc">Scherm­afbeelding 2026-08-27 om 02.04.58.png</a></td></tr><tr><td><strong>02</strong></td><td><strong>Capacity Protocol</strong></td><td>Understand how Model A supplies Model B execution.</td><td><a href="/ura-documentation/capacity-protocol.md">Capacity Protocol</a></td><td><a href="https://1748825992-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FINAVQvcBCGwClq336pmc%2Fuploads%2F6so5DmC9RvweYNKu3Xnp%2FScherm%C2%ADafbeelding%202026-08-27%20om%2002.05.43.png?alt=media&amp;token=cebf5d20-a6ca-4140-8b4c-49bc4e27bb83">Scherm­afbeelding 2026-08-27 om 02.05.43.png</a></td></tr><tr><td><strong>03</strong></td><td><strong>Developer Integration</strong></td><td>Review the bounded sponsorship lifecycle and readiness.</td><td><a href="/ura-documentation/developer-integration.md">Developer Integration</a></td><td><a href="https://1748825992-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FINAVQvcBCGwClq336pmc%2Fuploads%2FWntzSD3DwLQMQD1Xgw9j%2FScherm%C2%ADafbeelding%202026-08-27%20om%2002.06.50.png?alt=media&amp;token=86171810-9dd6-4982-9e7b-6c7392107e56">Scherm­afbeelding 2026-08-27 om 02.06.50.png</a></td></tr><tr><td><strong>04</strong></td><td><strong>Evidence &#x26; Status</strong></td><td>Separate proven results, blockers and future work.</td><td><a href="/ura-documentation/evidence-and-status.md">Evidence &amp; Status</a></td><td></td></tr></tbody></table>

## Current public status

| Capability                             | Status                               | Evidence boundary                                            |
| -------------------------------------- | ------------------------------------ | ------------------------------------------------------------ |
| ADA/tADA Cardano → Midnight shielding  | Proven on Preprod                    | Full deposit-to-claim state machine exercised                |
| Mithril certification gate             | Proven on Preprod                    | Cardano-side evidence is required before Midnight submission |
| Bounded Model A external-receiver path | Proven in controlled Preprod testing | One bounded redesignation and receiver-side DUST observation |
| Bounded Model B sponsored execution    | Proven on Preprod                    | One live sponsored spend plus operator reconciliation        |
| Generalized wallet provider onboarding | Wallet-blocked                       | A supported wallet signing flow is still required            |
| Faster Mithril timing target           | Pending retest                       | Not a current SLA or measured result                         |
| ETH, XRP, SOL and BNB routes           | Planned                              | Not currently supported                                      |

{% hint style="warning" %}
Ura is Preprod infrastructure. It is not presented as audited, production-ready or mainnet infrastructure.
{% endhint %}

## Explore

* [Open the Ura Preprod application](https://preprod.ura.finance/)
* [View Relay Club](https://relayclub.ura.finance/)
* [Watch the short Ura demo](https://youtu.be/MqykGwrJlYM)
* [Read Security & Trust](/ura-documentation/security-and-trust.md)


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