# Custodians & Multisigs

## [Safe](https://safe.global/)

Safe is an open-source, modular smart account framework that allows developers to create multi-signature wallets, among other applications.

<details>

<summary>Quick Links</summary>

**Plume Safe:** <https://safe.onchainden.com/welcome>

**Docs:** [https://docs.safe.global](https://docs.safe.global/)

</details>

The deployed Safe contracts are available at:

{% tabs %}
{% tab title="Plume Mainnet" %}

<table><thead><tr><th width="273.09375">Contract Name</th><th>Contract Deployment Address</th></tr></thead><tbody><tr><td>CompatibilityFallbackHandler</td><td><a href="https://explorer.plume.org/address/0xfd0732dc9e303f09fcef3a7388ad10a83459ec99">0xfd0732dc9e303f09fcef3a7388ad10a83459ec99</a></td></tr><tr><td>CreateCall</td><td><a href="https://explorer.plume.org/address/0x9b35af71d77eaf8d7e40252370304687390a1a52">0x9b35af71d77eaf8d7e40252370304687390a1a52</a></td></tr><tr><td>MultiSend</td><td><a href="https://explorer.plume.org/address/0x38869bf66a61cf6bdb996a6ae40d5853fd43b526">0x38869bf66a61cf6bdb996a6ae40d5853fd43b526</a></td></tr><tr><td>MultiSendCallOnly</td><td><a href="https://explorer.plume.org/address/0x9641d764fc13c8b624c04430c7356c1c7c8102e2">0x9641d764fc13c8b624c04430c7356c1c7c8102e2</a></td></tr><tr><td>Safe</td><td><a href="https://explorer.plume.org/address/0x41675c099f32341bf84bfc5382af534df5c7461a">0x41675c099f32341bf84bfc5382af534df5c7461a</a></td></tr><tr><td>SafeL2</td><td><a href="https://explorer.plume.org/address/0x29fcb43b46531bca003ddc8fcb67ffe91900c762">0x29fcb43b46531bca003ddc8fcb67ffe91900c762</a></td></tr><tr><td>SafeMigration</td><td><a href="https://explorer.plume.org/address/0x526643f69b81b008f46d95cd5ced5ec0edffdac6">0x526643f69b81b008f46d95cd5ced5ec0edffdac6</a></td></tr><tr><td>SafeProxyFactory</td><td><a href="https://explorer.plume.org/address/0x4e1dcf7ad4e460cfd30791ccc4f9c8a4f820ec67">0x4e1dcf7ad4e460cfd30791ccc4f9c8a4f820ec67</a></td></tr><tr><td>SafeToL2Migration</td><td><a href="https://explorer.plume.org/address/0xff83f6335d8930cbad1c0d439a841f01888d9f69">0xff83f6335d8930cbad1c0d439a841f01888d9f69</a></td></tr><tr><td>SafeToL2Setup</td><td><a href="https://explorer.plume.org/address/0xbd89a1ce4dde368ffab0ec35506eece0b1ffdc54">0xbd89a1ce4dde368ffab0ec35506eece0b1ffdc54</a></td></tr><tr><td>SignMessageLib</td><td><a href="https://explorer.plume.org/address/0xd53cd0ab83d845ac265be939c57f53ad838012c9">0xd53cd0ab83d845ac265be939c57f53ad838012c9</a></td></tr><tr><td>SimulateTxAccessor</td><td><a href="https://explorer.plume.org/address/0x3d4ba2e0884aa488718476ca2fb8efc291a46199">0x3d4ba2e0884aa488718476ca2fb8efc291a46199</a></td></tr></tbody></table>
{% endtab %}

{% tab title="Plume Testnet" %}

<table><thead><tr><th width="273.09375">Contract Name</th><th>Contract Deployment Address</th></tr></thead><tbody><tr><td>CompatibilityFallbackHandler</td><td><a href="https://testnet-explorer.plume.org/address/0xfd0732dc9e303f09fcef3a7388ad10a83459ec99">0xfd0732dc9e303f09fcef3a7388ad10a83459ec99</a></td></tr><tr><td>CreateCall</td><td><a href="https://testnet-explorer.plume.org/address/0x9b35af71d77eaf8d7e40252370304687390a1a52">0x9b35af71d77eaf8d7e40252370304687390a1a52</a></td></tr><tr><td>MultiSend</td><td><a href="https://testnet-explorer.plume.org/address/0x38869bf66a61cf6bdb996a6ae40d5853fd43b526">0x38869bf66a61cf6bdb996a6ae40d5853fd43b526</a></td></tr><tr><td>MultiSendCallOnly</td><td><a href="https://testnet-explorer.plume.org/address/0x9641d764fc13c8b624c04430c7356c1c7c8102e2">0x9641d764fc13c8b624c04430c7356c1c7c8102e2</a></td></tr><tr><td>Safe</td><td><a href="https://testnet-explorer.plume.org/address/0x41675c099f32341bf84bfc5382af534df5c7461a">0x41675c099f32341bf84bfc5382af534df5c7461a</a></td></tr><tr><td>SafeL2</td><td><a href="https://testnet-explorer.plume.org/address/0x29fcb43b46531bca003ddc8fcb67ffe91900c762">0x29fcb43b46531bca003ddc8fcb67ffe91900c762</a></td></tr><tr><td>SafeMigration</td><td><a href="https://testnet-explorer.plume.org/address/0x526643f69b81b008f46d95cd5ced5ec0edffdac6">0x526643f69b81b008f46d95cd5ced5ec0edffdac6</a></td></tr><tr><td>SafeProxyFactory</td><td><a href="https://testnet-explorer.plume.org/address/0x4e1dcf7ad4e460cfd30791ccc4f9c8a4f820ec67">0x4e1dcf7ad4e460cfd30791ccc4f9c8a4f820ec67</a></td></tr><tr><td>SafeToL2Migration</td><td><a href="https://testnet-explorer.plume.org/address/0xff83f6335d8930cbad1c0d439a841f01888d9f69">0xff83f6335d8930cbad1c0d439a841f01888d9f69</a></td></tr><tr><td>SafeToL2Setup</td><td><a href="https://testnet-explorer.plume.org/address/0xbd89a1ce4dde368ffab0ec35506eece0b1ffdc54">0xbd89a1ce4dde368ffab0ec35506eece0b1ffdc54</a></td></tr><tr><td>SignMessageLib</td><td><a href="https://testnet-explorer.plume.org/address/0xd53cd0ab83d845ac265be939c57f53ad838012c9">0xd53cd0ab83d845ac265be939c57f53ad838012c9</a></td></tr><tr><td>SimulateTxAccessor</td><td><a href="https://testnet-explorer.plume.org/address/0x3d4ba2e0884aa488718476ca2fb8efc291a46199">0x3d4ba2e0884aa488718476ca2fb8efc291a46199</a></td></tr></tbody></table>
{% endtab %}
{% endtabs %}

## [Den’s Onchain Custody (Exclusive)](https://docsend.com/view/dzbpj424fpykb945)

Onchain Custody is a more secure alternative to MPC and custody.

Den is providing Plume projects exclusive early access to Onchain Custody to secure their assets sooner. Plume projects will receive:

* Preferential pricing
* Priority support and SLAs
* Direct engineering support
* Optional self-hosted environments

<details>

<summary>Quick Links</summary>

**Docs:** <https://docsend.com/view/dzbpj424fpykb945>

**Learn more:** <https://calendly.com/onchainden/30min>

</details>