# Sygnum

**Canonical:** https://apis.io/providers/sygnum/  
**Website:** https://www.sygnum.com/  
**APIs profiled:** 10

Sygnum is a regulated digital asset banking group, headquartered in Zurich with a Singapore arm, that received a Swiss FINMA banking and securities dealer licence in August 2019. It provides institutional custody, spot and derivatives trading, staking, tokenisation, Lombard lending and 24/7 instant settlement for banks, asset managers, exchanges and corporates. Its B2B business is delivered through an API layer published at developer.sygnum.com — a catalogue covering Banking, Trading (REST and FIX), Custody, Staking, Wallet, Digital Transfer, Sygnum Protect (off-exchange custody), Sygnum Connect (instant settlement) and Market Data (REST and WebSocket) — served from the api.sygnum.com/b2b gateway and secured with OAuth 2.0 client credentials issued from the bank's Auth0 tenant at auth.sygnum.com. The specifications themselves are downloadable only to authenticated Sygnum clients from the developer portal.

## Kin Score — 53.7 / 100 (developing)

Scored 2026-09-01 under rubric 0.17.2. Trend: flat (+0.0 from 53.7).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 42.7 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 21.1 |
| Developer Ergonomics | 64.3 |
| Commercial Clarity | 52.6 |
| Access Clarity | 52.6 |

Regulatory layer — **Banking & Open Finance**: 74.7 (matched via tags).

## Agent readiness — 41.2 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | served |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | yes |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | served |
| Protected Resource Metadata | no |
| Dynamic Client Registration | yes |
| Agentic Commerce | no |

## APIs (10)

- **Sygnum Banking API** — Real-time account and balance retrieval across fiat, digital assets and traditional securities held at Sygnum, with role-based permissions, exposed to B2B partners as REST.
- **Sygnum Trading API** — Order management and execution for Sygnum's digital asset trading service, offered over both REST and the FIX protocol, with a webhook channel for asynchronous trade events.
- **Sygnum Custody API** — Endpoint set designed for bank clients to fetch account balances held in Sygnum's institutional-grade digital asset custody environment.
- **Sygnum Staking API** — Regulated Ethereum staking for retail and institutional clients — real-time staking, automated rewards, flexible amounts and portfolio tracking — with a webhook channel for stak...
- **Sygnum Wallet API** — Wallet service API covering wallet resources attached to Sygnum staking and digital asset accounts.
- **Sygnum Digital Transfer API** — Digital asset transfer service API for moving assets in and out of Sygnum, with a webhook channel for transfer status events.
- **Sygnum Protect API** — API for Sygnum Protect, the bank's off-exchange custody solution that lets exchanges verify client collateral held at Sygnum without moving it onto the venue.
- **Sygnum Connect API** — API for Sygnum Connect, the bank's 24/7 instant multi-asset settlement network for crypto assets, stablecoins and fiat between member institutions.
- **Sygnum Market Data API** — Market data service exposed as REST plus a streaming WebSocket channel, so partners can stream prices and monitor markets inside their own systems.
- **Sygnum Access Management API** — Client-management surface of the developer portal — create and manage Auth0 clients, attach credentials (public key or certificate with a key identifier and expiry) and scope th...

## Security (3)

- **Sygnum Authentication** — 2 schemes
- **Sygnum Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Sygnum Vulnerability Disclosure** — Hackerone · contact published

## Plans (1)

- **Sygnum Plans Pricing**

## Tags

Company, Banking, Digital Assets, Cryptocurrency, Custody, Trading, Staking, Tokenization, Settlement, Market Data, Financial-Services, Switzerland, Singapore, B2B

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/sygnum/). Scores are computed from the provider's own public artifacts under a published rubric.