# Fnality International

**Canonical:** https://apis.io/providers/fnality-international/  
**Website:** https://fnality.com/  
**APIs profiled:** 0

Fnality International is a London-headquartered financial market infrastructure company that builds and operates distributed-ledger wholesale payment systems settling in tokenised central bank money. Backed by a consortium of 24 global financial institutions — including Banco Santander, BNY, Barclays, BNP Paribas, Citi, Goldman Sachs, State Street and UBS — Fnality launched the Sterling Fnality Payment System (£FnPS) in 2024 as the first regulated DLT-based payment system supervised by the Bank of England, with US Dollar and Euro payment systems in development. The systems run on private Ethereum networks, giving participant banks 24/7 availability, real-time atomic and PvP settlement, programmable money and T+0 cross-border liquidity movement. Fnality Services is the operational and product-delivery arm that licenses software to participants and runs inter-system arrangements. Technical documentation for participants is hosted in a credential-gated Archbee space at docs.fnality.com; Fnality publishes no public developer portal, API reference or machine-readable specification.

## Kin Score — 10.1 / 100 (minimal)

Scored 2026-08-17 under rubric 0.11.0.

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 6.5 |
| Commercial Clarity | 10.5 |

Regulatory layer — **Payments**: 15.6 (matched via tags).

## Agent readiness — 3.2 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Security (1)

- **Fnality International Domain Security** — TLSv1.3 · HSTS

## Plans (1)

- **Fnality International Plans Pricing**

## Tags

Company, Payments, Financial Services, Settlement, Wholesale Banking, Distributed Ledger, Blockchain, Financial Market Infrastructure, Tokenisation, Central Bank Money, Liquidity Management, Capital Markets

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