# Liminal

> Institutional grade digital asset custody and wallet infrastructure built by experts

Liminal is a digital asset custody and wallet infrastructure provider. It serves exchanges, Web3 platforms, hedge funds, family offices, and other institutions with secure key management and compliance tools.

Liminal is a digital asset custody and wallet infrastructure company serving institutions that manage cryptocurrency holdings. It provides secure storage, transaction automation, and compliance monitoring for exchanges, Web3 platforms, hedge funds, family offices, market makers, and private equity and venture capital firms. The platform is built around multi-party computation and multi-signature technology to protect private keys and reduce operational risk.

The company addresses the operational and security challenges institutions face when handling digital assets at scale, such as manual key management processes and fragmented compliance workflows. Its infrastructure combines self-custody and managed custody options, letting organizations choose the level of control they retain over their keys. Custody offerings include account segregation, regular reserve checks, and published attestations, while the platform is licensed and regulated for the services it provides.

Core offerings include wallet infrastructure for building custody applications, managed institutional custody, institutional staking for cold wallet assets, and a whitelabel solution that lets partners offer branded custody services on top of Liminal's backend. Additional features cover transaction automation, firewall based transaction controls, and compliance checks, supported by developer APIs. The platform is used by crypto exchanges, brokerages, Web3 companies, and traditional financial institutions seeking regulated digital asset infrastructure.

- Type: Company
- Sector: Custody and Wallets
- Status: Active
- Founded: 2021-01-01
- Profile: https://thegrid.id/profiles/liminal

## Products

- [Liminal Wallet Infrastructure](https://thegrid.id/profiles/liminal): Liminal Wallet Infrastructure is an embedded wallet platform that lets institutions provision and manage hot and cold wallets through an API rather than building custody technology in-house. It secures private keys using multi-party computation and multi-signature schemes, and automates asset transfers based on configurable policies and thresholds. Businesses use it to embed wallet functionality into their own applications while maintaining transaction screening and compliance controls across multiple blockchain networks. (Embedded Wallet, Live, Main Product)
- [Liminal Digital Asset Custody](https://thegrid.id/profiles/liminal): Liminal Digital Asset Custody is a custodian service that holds and safeguards institutional digital assets through segregated accounts and hardware security modules. It combines multi-party computation and hardware-based key protection with insurance coverage and proof-of-reserve reporting to protect client holdings. Exchanges, funds, and other institutions use the service to store assets across multiple blockchain networks under a compliance-oriented custody framework. (Custodian, Live)
- [Liminal Institutional Staking](https://thegrid.id/profiles/liminal): Liminal Institutional Staking is a staking and validation service that lets institutions stake digital assets directly from their cold wallets without moving funds to a separate platform. It manages validator selection and operations through validator partnerships while tracking rewards from a unified dashboard. Institutions use it to earn staking yield across multiple proof-of-stake networks while retaining custody-level control and policy management over their holdings. (Staking & Validation Services, Live)
- [Liminal Firewall](https://thegrid.id/profiles/liminal): Liminal Firewall is a transaction compliance monitoring tool that screens outgoing and incoming transactions against configurable, rule-based policies before they reach a signer. It assesses transaction risk based on factors such as amount and destination, flags anomalies, and enforces transfer and withdrawal limits. It integrates with third-party compliance providers to support travel rule and know-your-transaction checks, giving institutions automated approval workflows across multiple blockchain networks. (Onchain Compliance and Investigations, Live)
- [Liminal Whitelabel Solution](https://thegrid.id/profiles/liminal): Liminal Whitelabel Solution is a custody infrastructure platform that lets exchanges and other virtual asset businesses launch branded wallet and custody applications built on Liminal's backend. It provides APIs and MPC and multi-signature security so clients can either hand custody of hot and cold wallets to Liminal or retain independent control of private keys. Web3 platforms and virtual asset service providers use it to bring a custom-branded custody product to market without building the underlying infrastructure themselves. (Blockchain-as-a-Service (BaaS), Live)
- [Liminal HSM Vault](https://thegrid.id/profiles/liminal): Liminal HSM Vault is a custody product combining multi-party computation and hardware security modules to provide cold storage for digital assets held by regulated institutions such as banks. It secures private keys within dedicated hardware while distributing signing authority across a hybrid MPC framework, reducing single points of failure. Banks and similarly regulated institutions use it to hold digital assets under stricter hardware-backed key protection than standard wallet infrastructure. (Custodian, Live)
- [Liminal Express](https://thegrid.id/profiles/liminal): Liminal Express is a developer API suite that provides RESTful endpoints for building custom wallet and custody infrastructure on top of Liminal's platform. It exposes wallet creation, transaction management, and security functions programmatically, allowing developers to embed MPC and multi-signature protected wallets into their own applications. Developers building institutional or Web3 products use it to integrate secure key management without building custody infrastructure from scratch. (Developer Tooling, Live)

## Links

- [Main](https://www.liminalcustody.com)
- [Documentation](https://docs.lmnl.app/docs/liminal-overview)
- [Blog](https://www.liminalcustody.com/blog)
- [Privacy policy](https://www.liminalcustody.com/privacy-policy)
- [Terms of Service](https://www.liminalcustody.com/terms-of-use)
- [LinkedIn](https://linkedin.com/company/liminalcustody)
- [Twitter / X](https://x.com/liminalcustody)
- [Instagram](https://instagram.com/liminalhq)
- [YouTube](https://www.youtube.com/@LiminalCustody)

## Legal

This data is provided under two licensing models.

Model 1 - open data. The open data core is licensed under the Open Database License (ODbL) — a copyleft/share-alike license allowing free use, modification, and sharing for any purpose. Attribution is required: include "Powered by The Grid" linking to https://thegrid.id wherever the data is used. Derivative databases must be shared under ODbL terms. Trademarks, logos, and brand names (marked "Special TPIP") are not covered by the ODbL. For ML/AI use: training datasets that substantially extract ODbL data are Derivative Databases and must be shared under ODbL if publicly used; models must be attributed in documentation.

Model 2 - commercial licenses. The Grid Data Service (TGDS) is also available as a commercial license. See [Web Services Terms](https://about.thegrid.id/legal/web-services-terms) for commercial use that is not covered by the open data service.

The following applies to both licensing models.
- All data is provided AS IS with no guarantees of accuracy.
- The Grid does not provide investment, legal, or tax advice, and
- a project's presence in The Grid's data does not imply endorsement.


- [Data Licensing & Disclaimers](https://about.thegrid.id/legal/data-licensing-and-disclaimers): Licensing models and disclaimers
- [Open Data (ODbL)](https://about.thegrid.id/legal/open-data): Open Database License terms and scope for The Grid's open data service.
- [Attribution Guidelines](https://about.thegrid.id/legal/open-data-attribution-guidelines): How to attribute The Grid's data when using the open data service.
- [Web Services Terms](https://about.thegrid.id/legal/web-services-terms): commercial Terms for using data services.
- [All Legal Documents](https://about.thegrid.id/legal): Full index of terms, policies, and disclosures

## Optional

- [TGS Field Descriptions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-field-descriptions.md): Schema field definitions for The Grid's data model
- [TGS JSON Structure](https://github.com/The-Grid-Data/workspace-public/blob/main/references/tgs-json-structure.md): Data model structure and relationships
- [Product Type Definitions](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-definitions.md): Definitions for each product type
- [Product Type Classification](https://github.com/The-Grid-Data/workspace-public/blob/main/references/product-type-classification.md): Guide for classifying products into types
- [Grid MCP Guide](https://github.com/The-Grid-Data/workspace-public/blob/main/grid-search/skills/grid-query/references/grid-mcp-guide.md): How to query The Grid programmatically via MCP