# OneTick (OneMarketData)

**Canonical:** https://apis.io/providers/onetick/  
**Website:** https://www.onetick.com/  
**APIs profiled:** 5

OneTick, from OneMarketData, is an enterprise tick database and analytics platform for capital markets, capturing, storing, and analyzing trade, quote, and order-book time series at scale for quant research, transaction cost analysis, and trade surveillance. OneTick Cloud sells historical and reference market data covering 200+ global equities, options, and futures venues (history back to 1993, corporate actions, symbol cross-reference) delivered on demand through an OAuth2-secured REST WebAPI, a pandas-like Python API (onetick-py), a directed-graph Python API, SQL querying, and file delivery, with a self-serve trial registration. The detailed REST endpoint reference sits behind the cloud dashboard login. OneMarketData merged with KX in September 2025 under TA Associates ownership.

## Kin Score — 37.2 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 37.2).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 0.0 |
| Governance | 18.2 |
| Contract Governance | 18.2 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 54.8 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

Regulatory layer — **Securities & Market Data**: 58.3 (matched via tags).

## Agent readiness — 8.5 (agent-aware)

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

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (5)

- **OneTick Cloud REST API (WebAPI)** — HTTPS REST access to OneTick Cloud market data and analytics queries, authenticated with an OAuth2 client-credentials Bearer token issued by the OneTick Keycloak realm (https://...
- **OneTick Python API - onetick-py (pandas-style)** — A pandas-like Python API for querying tick-by-tick market data in OneTick, published on PyPI as onetick-py with openly browsable documentation. Against OneTick Cloud it executes...
- **OneTick Python API - Directed Graph** — The lower-level directed-graph-style Python query API for OneTick, composing event-processor graphs against tick series, with openly browsable documentation and worked examples ...
- **OneTick SQL API** — SQL querying over OneTick tick and reference data, documented openly and runnable against OneTick Cloud (including via otp.SqlQuery in onetick-py over the WebAPI transport).
- **OneTick Point-in-Time TCA API** — Cloud API for extracting adjusted and unadjusted point-in-time quotes and trades at nanosecond precision across 200+ venues for transaction cost analysis, packaged for Python in...

## Security (2)

- **Onetick Authentication** — oauth2/openIdConnect · 2 schemes
- **Onetick Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC

## Tags

Financial, Market Data, Tick Data, Historical Data, Trading, Analytics, Surveillance, Time Series, Equities, Options

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