# Quantinuum Systems (H-Series)

**Canonical:** https://apis.io/apis/quantinuum/systems/  
**Provider:** Quantinuum — https://apis.io/providers/quantinuum/  
**Documentation:** https://docs.quantinuum.com/systems/

Quantinuum Systems (H-Series) is one of 9 APIs that [Quantinuum](https://apis.io/providers/quantinuum/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Quantum Computing, Trapped Ion, QIR, OpenQASM, and H-Series. The published artifact set on APIs.io includes API documentation.

The Quantinuum Systems API exposes the H-Series trapped-ion (QCCD) quantum computers — System Model H1, System Model H2, and the next-generation Helios — for circuit submission. Direct communication with system endpoints occurs via QIR (Quantum Intermediate Representation) or OpenQASM 2.0 payloads, typically brokered through Nexus. The H-Series supports all-to-all qubit connectivity, mid-circuit measurement and reset, parameterized two-qubit operations, and conditional logic.

## Machine-readable artifacts (5)

- **Documentation** — https://docs.quantinuum.com/systems/
- **Documentation** — https://docs.quantinuum.com/systems/user_guide/hardware_user_guide/access.html
- **Data** — https://github.com/Quantinuum/quantinuum-hardware-specifications
- **Data** — https://github.com/Quantinuum/quantinuum-hardware-quantum-volume
- **Data** — https://github.com/Quantinuum/quantinuum-hardware-h2-benchmark

## Other Quantinuum APIs (8)

- [Quantinuum Nexus](https://apis.io/apis/quantinuum/nexus/)
- [TKET](https://apis.io/apis/quantinuum/tket/)
- [InQuanto](https://apis.io/apis/quantinuum/inquanto/)
- [lambeq](https://apis.io/apis/quantinuum/lambeq/)
- [Guppy](https://apis.io/apis/quantinuum/guppy/)
- [Selene](https://apis.io/apis/quantinuum/selene/)
- [Quantum Origin](https://apis.io/apis/quantinuum/quantum-origin/)
- [Qermit](https://apis.io/apis/quantinuum/qermit/)

## Tags

Quantum Computing, Trapped Ion, QIR, OpenQASM, H-Series

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/quantinuum/systems/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/quantinuum/.