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Rigetti Computing

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.

agent ready

Reference-quality API operations across every facet — a rich contract, published governance, transparent operations, and machine-readable commercial terms.

Kin Score

API Evangelist profiles Rigetti Computing the way a machine reads it — 69 machine-readable artifacts across 11 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Rigetti Computing scores 70.8/100 (exemplar), with a separate agent-readiness read of 55/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 70.8/100 · exemplar
Contract Quality 18.3 / 25
Developer Ergonomics 13.0 / 20
Commercial Clarity 14.2 / 20
Operational Transparency 6.8 / 13
Governance 10.4 / 12
Discoverability 8.0 / 10
Agent readiness — 55/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile Rigetti Computing

Each block below is one kind of artifact we hold for Rigetti Computing. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 11

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

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.

Scroll within the panel for all 11 ·

Postman Collections 1

A runnable collection turns the contract into something a developer can execute in seconds. We profile them because the fastest way to trust an API is to make a real call against it.

Ready-to-run Postman collections for exercising this provider's APIs.

Open Collections 1

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Rigetti QCS API

OPEN COLLECTION

Arazzo Workflows 6

Real integrations are rarely a single call. Arazzo describes the multi-step sequences — auth, then create, then confirm — so both a human and an agent can follow the choreography, not just the endpoints.

Multi-step API workflows described with the Arazzo specification.

Rigetti Book QPU Reservation

Find an available reservation slot on a quantum processor, book it, and confirm the booking.

ARAZZO

Rigetti Cancel Reservation

List a user's reservations, inspect the most relevant one, and cancel it, confirming the cancellation.

ARAZZO

Rigetti Create Execution Engagement

Resolve a processor's default endpoint and create an engagement that grants credentialed access to execute on the QPU.

ARAZZO

Rigetti Discover Quantum Processor

List available QPUs, then inspect one processor's metadata, instruction set architecture, and live accessors.

ARAZZO

Rigetti Provision Endpoint and Engage

Create a private endpoint for a processor, poll until it reports healthy, then create an engagement against it.

ARAZZO

Rigetti Reservation Readiness Check

Resolve the caller's identity and balance, read a processor's maintenance calendar, and surface available reservation slots before booking.

ARAZZO

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Rigetti Plans Pricing

6 plans

PLANS

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Rigetti Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Features 19

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

Cepheus-1-108Q superconducting QPU (107 qubits) with 99.84% 1Q gate fidelity and 98.77% 2Q CZ gate fidelity
Novera 9-qubit QPU for on-premises deployment with dilution refrigerator
Hybrid REST + gRPC API surface — OpenAPI 3.0 HTTP API for management + gRPC for translation and execution
OAuth2 / JWT (Okta) authentication with 24-hour access tokens
Quil — open quantum instruction language with classical control flow and hybrid quantum-classical programs
Translation service compiles native Quil programs to encrypted Controller Jobs server-side
Controller service executes batched jobs on a QPU endpoint and returns readout results
Reservation system for time-boxed exclusive QPU access via /v1/reservations and FindAvailableReservations
Engagement-based access control — short-lived QPU access tokens scoped to a quantum processor endpoint
Group / user billing with metered invoices and upcoming-invoice preview
pyQuil 4.x Python library with Jupyter notebook tutorials and Forest SDK integration
qcs-sdk multi-language SDK (Rust core + Python and C bindings)
QVM (Quantum Virtual Machine) and quilc (Quil compiler) for local simulation and compilation
QIR (Quantum Intermediate Representation) compiler via qcs-sdk-qir
Qiskit provider via qiskit-rigetti
Azure Quantum and AWS Braket third-party provider integrations
Rigetti Resource Estimation (RRE) tool for fault-tolerant algorithm resource analysis
Quantum Foundry Services for custom QPU development and partner programs
Publicly traded on Nasdaq (RGTI) with quarterly SEC disclosures

Scroll within the panel for all 19 ·

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Rigetti Context

36 classes · 0 properties

JSON-LD

Spectral Rules 1

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

Rigetti Computing API Rules

5 rules · 3 warnings

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

Rigetti Quantum Processor

10 properties

JSON SCHEMA

Rigetti QCS Reservation

10 properties

JSON SCHEMA

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Rigetti Authentication

http · 1 scheme

SECURITY

Rigetti Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Rigetti Agentic Access

52 operations · 17 acting · 3 human-in-the-loop

52 operations · 17 acting

AGENTIC

Use Cases 10

What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.

What developers build with this provider.

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

Scroll within the panel for all 10 ·

Integrations 8

Pre-built integrations with other platforms tell you where this provider already fits in a stack.

Pre-built integrations with other platforms and tools.

Amazon Braket (Rigetti as third-party QPU provider)
Microsoft Azure Quantum (Rigetti as third-party QPU provider)
Google Cirq with rigetti.* hardware module
Qiskit (via qiskit-rigetti provider)
OpenFermion (via forest-openfermion plugin)
QIR Alliance (via qcs-sdk-qir compiler)
Quil-lang ecosystem (quilc, qvm, quil-rs, libquil)
Okta (OAuth2 identity provider)

Scroll within the panel for all 8 ·

Solutions 3

Packaged solutions the provider offers on top of the raw API surface.

Packaged solutions this provider offers.

Quantum Cloud Services (QCS) — managed cloud access to Rigetti QPUs
Novera QPU — on-premises 9-qubit superconducting system
Quantum Foundry Services — custom quantum hardware development

Resources

Every other property we hold for Rigetti Computing — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 3

Portal, sign-up, and the first successful call

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Scroll within the panel for all 8 ·

Access & Security 3

Authentication, authorization, and security posture

Operate 4

Status, limits, changes, and where to get help

Company 2

The organization behind the API

Other 1

Properties that don't map to a standard resource type

← All providers · Data indexed from github.com/api-evangelist/rigetti · machine-readable index on apis.io