# Sequence Markets

**Canonical:** https://apis.io/providers/sequence-markets/  
**Website:** https://sequencemkts.com/  
**APIs profiled:** 1

Sequence Markets is a Y Combinator (Winter 2026) trading operating system for institutional crypto that provides unified execution infrastructure across 12 fragmented digital-asset venues — centralized exchanges (Coinbase, Binance, Kraken, OKX, Bybit, Bitget, Crypto.com, Hyperliquid), DeFi, and prediction markets (Kalshi, Polymarket). It packages one market view into a single trade via a smart order router (SOR), execution graphs, and WASM-compiled algo strategies deployed to multi-region low-latency edges. Developers access it through a Bearer-auth REST API and multiplexed WebSocket streams, a Python SDK, a Rust SDK, an Algo SDK, a `sequence` CLI, and an MCP interface for human, algorithmic, and agent workflows, with a full paper-trading sandbox, smart order routing, and transaction-cost analytics (TCA).

## Kin Score — 43.2 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 43.2).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 45.1 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 73.2 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

Regulatory layer — **Securities & Market Data**: 41.7 (matched via tags).

## Agent readiness — 36.5 (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 | documented |
| Event Surface Described | derived |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

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

## APIs (1)

- **Sequence Markets Trading API** — Bearer-auth REST API and multiplexed WebSocket streaming surface for the Sequence Markets trading OS — credentials & wallets, market data, orders & execution graphs, positions &...

## MCP servers (1)

- **Sequence Markets MCP Server**

## Security (2)

- **Sequence Markets Authentication** — http-bearer · 1 scheme
- **Sequence Markets Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Trading, Cryptocurrency, Digital Assets, Execution, Smart Order Routing, Prediction Markets, Algorithmic Trading, DeFi, Market Data, Fintech, Developer Tools

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