# Blue Square Group Limited

**Canonical:** https://apis.io/providers/blue-square-group-limited/  
**Website:** https://grvt.io  
**APIs profiled:** 2

Blue Square Group Limited is the corporate entity behind GRVT (pronounced "gravity"), a licensed hybrid crypto derivatives exchange headquartered in Singapore and engineered by Gravity Technologies. GRVT pairs a high-performance central limit order book with self-custody settlement on a zkSync-based Layer 2, and exposes a public Market Data API and an authenticated Trading API over both REST and WebSocket. The APIs cover perpetual futures and spot trading, order management (including bulk orders, TP/SL and trigger orders), positions and margin, sub-account and funding-account summaries, transfers, deposits and withdrawals, and on-chain vault investment and redemption. Authentication combines an API-key login with Ethereum-style ECDSA (secp256k1 / EIP-712) request signing and scoped session keys. First-party Python and JavaScript/TypeScript SDKs plus published agent skills round out the developer surface. Surfaced as a portfolio company of 500 Global and enriched into the API Evangelist network.

## Kin Score — 31.9 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 31.9).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 45.1 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 15.8 |
| Developer Ergonomics | 50.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Securities & Market Data**: 38.3 (matched via tags).

## Agent readiness — 43.2 (agent-ready)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (2)

- **GRVT Market Data API** — Public market-data API for GRVT — instruments, currencies, supported assets, margin rules, mini/full tickers, orderbook levels, trades, trade history, candlesticks, and funding ...
- **GRVT Trading API** — Authenticated trading API for GRVT — create/cancel orders (single, bulk, TP/SL, trigger), open orders and order history, fills, positions and position history, margin management...

## MCP servers (1)

- **Blue Square Group Limited MCP Server**

## Security (3)

- **Blue Square Group Limited Authentication** — apiKey/signature · 2 schemes
- **Blue Square Group Limited Domain Security** — TLSv1.3 · HSTS · DMARC
- **Blue Square Group Limited Vulnerability Disclosure** — Bugcrowd · security.txt · contact published

## Tags

Company, Cryptocurrency, Derivatives Exchange, Trading, Perpetual Futures, Market Data, Blockchain, WebSocket, Financial-Services

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