Copper Institutional Crypto Custody and Settlement API
Copper institutional crypto custody and settlement REST API for asset managers, hedge funds, exchanges, and financial institutions to access secure multi-party computation (MPC) custody for digital assets, execute settlement through ClearLoop off-exchange settlement network, manage staking, and integrate prime brokerage services — enabling institutional-grade crypto asset custody without moving assets off-exchange, reducing counterparty risk through Copper's ClearLoop settlement layer. Enables AI agents to manage asset custody for institutional crypto safekeeping automation, handle ClearLoop settlement for off-exchange crypto settlement automation, access portfolio management for institutional digital asset tracking automation, retrieve transaction history for custody accounting automation, manage staking for proof-of-stake yield automation, handle wallet management for institutional multi-asset wallet automation, access exchange connectivity for trading with custody integration automation, retrieve compliance reporting for institutional audit automation, manage approval workflow for institutional multi-sig authorization automation, and integrate Copper with institutional trading systems, fund administration, and crypto prime brokerage platforms for digital asset management automation.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Institutional crypto custody. FCA, MiCA, FATF. API key + HMAC. UK/EU. Institutional crypto asset data.
⚡ Reliability
Best When
An institutional asset manager, hedge fund, exchange, or financial institution wanting AI agents to manage MPC-secured digital asset custody, execute off-exchange settlement via ClearLoop, and integrate crypto prime brokerage services.
Avoid When
FCA AND INSTITUTIONAL REGULATIONS: Copper is FCA-regulated in UK and operates under institutional crypto regulations; automated retail crypto service assumption creates wrong product fit; automated must understand institutional crypto regulatory requirements per jurisdiction. ENTERPRISE ONBOARDING REQUIRED: Copper institutional custody requires enterprise onboarding with AML/KYC and institutional due diligence; automated API self-service signup assumption creates pending_onboarding state; automated must complete Copper institutional onboarding. CLEARLOOP IS EXCHANGE-SPECIFIC: ClearLoop off-exchange settlement works with specific partner exchanges; automated all-exchange ClearLoop assumption creates exchange_not_connected for non-ClearLoop exchanges; automated must verify target exchange has ClearLoop connectivity. MPC APPROVAL WORKFLOW: Copper MPC custody requires multi-party signing approval; automated single-party instant transaction assumption misses institutional approval workflow requirements; automated must implement multi-approver workflow for custody transactions.
Use Cases
- • Managing institutional digital asset custody with MPC security for asset manager and hedge fund automation agents
- • Executing off-exchange crypto settlement via ClearLoop to reduce counterparty risk for trading desk automation agents
- • Integrating Copper custody with institutional trading platforms for seamless crypto asset management automation agents
- • Managing staking operations for institutional proof-of-stake asset yield optimization automation agents
Not For
- • Retail consumer crypto custody (Copper is institutional-grade, not retail wallet)
- • DeFi protocol integration (Copper is centralized institutional custody, not DeFi protocol)
- • Small-scale crypto holdings (Copper has minimum AUM thresholds for institutional clients)
Interface
Authentication
Copper uses API key + HMAC signature for authentication. REST API with JSON. London, UK HQ. Founded 2018 by Dmitry Tokarev. Products: MPC custody, ClearLoop settlement network, portfolio management, staking, exchange connectivity, prime brokerage. SDKs: None public. FCA registered in UK. Institutional focus. ClearLoop connected to Binance, Kraken, Deribit, and major exchanges. Backed by investors including Dawn Capital. Competes with Fireblocks and BitGo for institutional crypto custody.
Pricing
London UK. FCA regulated. AUM-based custody fees. ClearLoop settlement. Institutional crypto prime brokerage.
Agent Metadata
Known Gotchas
- ⚠ HMAC SIGNATURE ON ALL REQUESTS: Copper API requires HMAC-SHA256 signature using API secret on every request; automated API-key-only assumption creates authentication_invalid; automated must implement HMAC signing with timestamp for all Copper API calls
- ⚠ MPC APPROVAL IS MULTI-PARTY: Copper MPC custody requires configured approval quorum before transaction execution; automated instant single-approver transaction assumption creates awaiting_approval state; automated must understand and implement configured approval workflow
- ⚠ CLEARLOOP EXCHANGE CONNECTIVITY: ClearLoop off-exchange settlement requires both Copper account and connected exchange account at ClearLoop-participating exchanges; automated any-exchange settlement assumption creates exchange_not_connected; automated must verify exchange ClearLoop participation before settlement flow
- ⚠ INSTITUTIONAL ONBOARDING IS GATED: Copper requires institutional due diligence and AML/KYC onboarding; automated API sandbox self-service assumption creates pending_onboarding; automated must complete Copper institutional onboarding before development
- ⚠ WEBHOOK SIGNATURES MUST BE VERIFIED: Copper webhooks include signature for verification; automated unverified webhook assumption creates security vulnerability; automated must verify webhook signatures before processing custody transaction events
Alternatives
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Scores are editorial opinions as of 2026-03-07.