# Rigetti Computing

**Canonical:** https://apis.io/providers/rigetti/  
**Website:** https://www.rigetti.com  
**APIs profiled:** 11

Rigetti Computing (Nasdaq, RGTI) is a Berkeley, California-based quantum computing company building superconducting quantum processors and the full-stack software needed to program and operate them. Founded in 2013 by Chad Rigetti, the company designs, manufactures, and operates multi-chip superconducting QPUs at its Fab-1 in Fremont, CA and offers cloud-based access through Quantum Cloud Services (QCS). Rigetti also sells the Novera QPU (9-qubit) for on-premises customers and provides Quantum Foundry Services for custom development. The current generation system Cepheus-1-108Q (107 qubits, deployed April 2026) is accessed via a hybrid REST + gRPC API surface, programmed using the open Quil instruction language, the pyQuil Python library, and the multi-language qcs-sdk (Rust core with Python bindings). Rigetti's hardware is also available indirectly through AWS Braket, Microsoft Azure Quantum, and as a Qiskit provider via qiskit-rigetti.

## Kin Score — 57.0 / 100 (strong)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 57.0).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 69.9 |
| Governance | 25.0 |
| Contract Governance | 25.0 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 57.1 |
| Commercial Clarity | 73.7 |
| Access Clarity | 73.7 |

## Agent readiness — 40.4 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | documented |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | no |
| 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: high).

## APIs (11)

- **Rigetti QCS Translation Service (gRPC)** — gRPC Translation service that compiles native Quil programs into encrypted Controller Jobs for execution on a Rigetti QPU. Operations include TranslateQuilToEncryptedControllerJ...
- **Rigetti QCS Controller Service (gRPC)** — gRPC Controller service that executes encrypted Controller Jobs on a Rigetti QPU endpoint and returns measurement (readout) results. Operations include ExecuteControllerJob, Bat...
- **Rigetti Computing account API** — The account API from Rigetti Computing — 22 operation(s) for account.
- **Rigetti Computing authentication API** — The authentication API from Rigetti Computing — 4 operation(s) for authentication.
- **Rigetti Computing clientApplications API** — Check for the latest SDK versions.
- **Rigetti Computing endpoints API** — The Endpoint is the means of access to a Quantum Processor.
- **Rigetti Computing engagements API** — The Engagement is the authorization mechanism for access to the Quantum Processor.
- **Rigetti Computing Healthcheck API** — The Healthcheck API from Rigetti Computing — 1 operation(s) for healthcheck.
- **Rigetti Computing quantumProcessors API** — The Quantum Processor is the heart of the Rigetti services.
- **Rigetti Computing reservations API** — Find existing time on a Rigetti QPU and reserve it.
- **Rigetti Computing Rigetti QCS API API** — The Rigetti QCS API API from Rigetti Computing — 2 operation(s) for rigetti qcs api.

## Agentic access (1)

- **Rigetti Agentic Access** — 52 operations · 17 acting · 3 human-in-the-loop

## Security (2)

- **Rigetti Authentication** — http · 1 scheme
- **Rigetti Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Rigetti Plans Pricing**

## Use cases (10)

- **Quantum algorithm research and benchmarking on real superconducting hardware**
- **Variational Quantum Eigensolver (VQE) and Quantum Approximate Optimization Algorithm (QAOA) workloads**
- **Hybrid quantum-classical machine learning experiments**
- **Quantum chemistry simulation via OpenFermion + forest-openfermion plugin**
- **Quantum characterization, verification, and validation (QCVV) using forest-benchmarking**
- **QPU calibration and Instruction Set Architecture introspection for low-level control**
- **Academic and government research access (MIT, NASA, Oxford Instruments, Standard Chartered, Edinburgh)**
- **On-premises quantum computing via Novera QPU for national labs and corporate R&D**
- **Custom QPU co-design through Quantum Foundry Services**
- **Multi-cloud quantum access through AWS Braket and Azure Quantum**

## Tags

Quantum Computing, Superconducting Qubits, Quantum Cloud Services, QCS, QPU, Quil, pyQuil, NISQ, Fault-Tolerant Quantum Computing, Quantum-Classical Hybrid, Public Company

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