Rigetti & Co

Rigetti Computing (Rigetti & Co) is a full-stack quantum computing company that builds superconducting quantum processors and delivers access to them through Quantum Cloud Services (QCS). The QCS HTTP API is an OpenAPI 3.0.2 REST/RPC interface (aligned with Google API Improvement Proposals) for discovering quantum processors and their instruction set architectures, reserving execution time, opening execution engagements against endpoints, and managing accounts and billing. Quantum programs are built and run with the pyQuil and qcs-sdk Python/Rust SDKs, while low-latency job execution, readout, and translation run over a companion gRPC surface. Authentication is OAuth2 (Okta) bearer JWT. Surfaced as an a16z portfolio company and enriched by the API Evangelist pipeline from Rigetti's published OpenAPI, gRPC protos, client packages, and QCS documentation.

Rigetti & Co publishes 9 APIs on the APIs.io network, including account API, authentication API, clientApplications API, and 6 more. Tagged areas include Company, Quantum Computing, Quantum, Infrastructure, and Developers.

Rigetti & Co’s developer surface includes authentication, documentation, API reference, getting-started guide, support, engineering blog, signup flow, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.9/100 thin ▬ flat Agent 29/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Company Quantum Computing Quantum Infrastructure Developers Cloud Computing QPU

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 36.9/100 · thin

Contract Quality 12.4 / 23

Developer Ergonomics 6.8 / 18

Access Clarity 6.2 / 18

Operational Transparency 1.2 / 12

Contract Governance 0.5 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/rigetti-and-co: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 9

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

Rigetti & Co account API

The account API from Rigetti & Co — 22 operation(s) for account.

Rigetti & Co authentication API

The authentication API from Rigetti & Co — 4 operation(s) for authentication.

Rigetti & Co clientApplications API

Check for the latest SDK versions.

Rigetti & Co endpoints API

The Endpoint is the means of access to a Quantum Processor.

Rigetti & Co engagements API

The Engagement is the authorization mechanism for access to the Quantum Processor.

Rigetti & Co Healthcheck API

The Healthcheck API from Rigetti & Co — 1 operation(s) for healthcheck.

Rigetti & Co quantumProcessors API

The Quantum Processor is the heart of the Rigetti services.

Rigetti & Co reservations API

Find existing time on a Rigetti QPU and reserve it.

Rigetti & Co Rigetti QCS API API

The Rigetti QCS API API from Rigetti & Co — 2 operation(s) for rigetti qcs api.

Scroll for all 9

Open Collections 10

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

API Collection

OPEN COLLECTION

Rigetti QCS account API

OPEN COLLECTION

Rigetti QCS account authentication API

OPEN COLLECTION

Rigetti QCS account clientApplications API

OPEN COLLECTION

Rigetti QCS account endpoints API

OPEN COLLECTION

Rigetti QCS account engagements API

OPEN COLLECTION

Rigetti QCS account Healthcheck API

OPEN COLLECTION

Rigetti QCS account quantumProcessors API

OPEN COLLECTION

Rigetti QCS account reservations API

OPEN COLLECTION

Rigetti QCS account Rigetti QCS API API

OPEN COLLECTION

Scroll for all 10

Security Posture 2

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

Rigetti And Co Authentication

http · 1 scheme

SECURITY

Rigetti And Co Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Rigetti And Co Agentic Access

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

52 operations · 17 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

X-MCPServerCandidate

LLMsTxt

AgentSkill

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

Deprecation

Deprecation

Support

Support

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: rigetti-and-co
name: Rigetti & Co
description: Rigetti Computing (Rigetti & Co) is a full-stack quantum computing company that builds superconducting quantum
  processors and delivers access to them through Quantum Cloud Services (QCS). The QCS HTTP API is an OpenAPI 3.0.2 REST/RPC
  interface (aligned with Google API Improvement Proposals) for discovering quantum processors and their instruction set architectures,
  reserving execution time, opening execution engagements against endpoints, and managing accounts and billing. Quantum programs
  are built and run with the pyQuil and qcs-sdk Python/Rust SDKs, while low-latency job execution, readout, and translation
  run over a companion gRPC surface. Authentication is OAuth2 (Okta) bearer JWT. Surfaced as an a16z portfolio company and
  enriched by the API Evangelist pipeline from Rigetti's published OpenAPI, gRPC protos, client packages, and QCS documentation.
url: https://raw.githubusercontent.com/api-evangelist/rigetti-and-co/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: active
x-tier-reason: enriched-real-api-surface
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Quantum Computing
- Quantum
- Infrastructure
- Developers
- Cloud Computing
- QPU
tags_raw:
- Company
- Quantum Computing
- Quantum
- Infrastructure
- Developers
- Cloud Computing
- QPU
- API
apis:
- aid: rigetti-and-co:rigetti-and-co-account-api
  name: Rigetti & Co account API
  description: The account API from Rigetti & Co — 22 operation(s) for account.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags:
  - Account
  tags_raw:
  - account
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-account-api-openapi.yml
  - type: Protobuf
    url: grpc/rigetti-and-co-controller-service.proto
  - type: Protobuf
    url: grpc/rigetti-and-co-translation-service.proto
- aid: rigetti-and-co:rigetti-and-co-authentication-api
  name: Rigetti & Co authentication API
  description: The authentication API from Rigetti & Co — 4 operation(s) for authentication.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags:
  - Authentication
  tags_raw:
  - authentication
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-authentication-api-openapi.yml
  - type: Protobuf
    url: grpc/rigetti-and-co-controller-service.proto
  - type: Protobuf
    url: grpc/rigetti-and-co-translation-service.proto
- aid: rigetti-and-co:rigetti-and-co-clientapplications-api
  name: Rigetti & Co clientApplications API
  description: Check for the latest SDK versions.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags: []
  tags_raw:
  - clientApplications
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-clientapplications-api-openapi.yml
  - type: Protobuf
    url: grpc/rigetti-and-co-controller-service.proto
  - type: Protobuf
    url: grpc/rigetti-and-co-translation-service.proto
- aid: rigetti-and-co:rigetti-and-co-endpoints-api
  name: Rigetti & Co endpoints API
  description: The Endpoint is the means of access to a Quantum Processor.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags: []
  tags_raw:
  - endpoints
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-endpoints-api-openapi.yml
  - type: Protobuf
    url: grpc/rigetti-and-co-controller-service.proto
  - type: Protobuf
    url: grpc/rigetti-and-co-translation-service.proto
- aid: rigetti-and-co:rigetti-and-co-engagements-api
  name: Rigetti & Co engagements API
  description: The Engagement is the authorization mechanism for access to the Quantum Processor.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags:
  - Engagements
  tags_raw:
  - engagements
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-engagements-api-openapi.yml
  - type: Protobuf
    url: grpc/rigetti-and-co-controller-service.proto
  - type: Protobuf
    url: grpc/rigetti-and-co-translation-service.proto
- aid: rigetti-and-co:rigetti-and-co-healthcheck-api
  name: Rigetti & Co Healthcheck API
  description: The Healthcheck API from Rigetti & Co — 1 operation(s) for healthcheck.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags:
  - Health Check
  tags_raw:
  - Healthcheck
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-healthcheck-api-openapi.yml
  - type: Protobuf
    url: grpc/rigetti-and-co-controller-service.proto
  - type: Protobuf
    url: grpc/rigetti-and-co-translation-service.proto
- aid: rigetti-and-co:rigetti-and-co-quantumprocessors-api
  name: Rigetti & Co quantumProcessors API
  description: The Quantum Processor is the heart of the Rigetti services.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags: []
  tags_raw:
  - quantumProcessors
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-quantumprocessors-api-openapi.yml
  - type: Protobuf
    url: grpc/rigetti-and-co-controller-service.proto
  - type: Protobuf
    url: grpc/rigetti-and-co-translation-service.proto
- aid: rigetti-and-co:rigetti-and-co-reservations-api
  name: Rigetti & Co reservations API
  description: Find existing time on a Rigetti QPU and reserve it.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags:
  - Reservations
  tags_raw:
  - reservations
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-reservations-api-openapi.yml
  - type: Protobuf
    url: grpc/rigetti-and-co-controller-service.proto
  - type: Protobuf
    url: grpc/rigetti-and-co-translation-service.proto
- aid: rigetti-and-co:rigetti-and-co-rigetti-qcs-api-api
  name: Rigetti & Co Rigetti QCS API API
  description: The Rigetti QCS API API from Rigetti & Co — 2 operation(s) for rigetti qcs api.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags:
  - Rigetti QCS API
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-rigetti-qcs-api-api-openapi.yml
  - type: Protobuf
    url: grpc/rigetti-and-co-controller-service.proto
  - type: Protobuf
    url: grpc/rigetti-and-co-translation-service.proto
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/rigetti-and-co-agentic-access.yml
- type: DomainSecurity
  url: security/rigetti-and-co-domain-security.yml
- type: Authentication
  url: authentication/rigetti-and-co-authentication.yml
- type: Conventions
  url: conventions/rigetti-and-co-conventions.yml
- type: ErrorCatalog
  url: errors/rigetti-and-co-problem-types.yml
- type: Lifecycle
  url: lifecycle/rigetti-and-co-lifecycle.yml
- type: Deprecation
  url: lifecycle/rigetti-and-co-lifecycle.yml
- type: Conformance
  url: conformance/rigetti-and-co-conformance.yml
- type: DataModel
  url: data-model/rigetti-and-co-data-model.yml
- type: Packages
  url: packages/rigetti-and-co-packages.yml
- type: SDKs
  url: packages/rigetti-and-co-packages.yml
- type: X-MCPServerCandidate
  url: mcp/rigetti-and-co-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/rigetti-and-co-llms.txt
- type: Overlay
  url: overlays/rigetti-and-co-qcs-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml
- type: WellKnown
  url: well-known/rigetti-and-co-well-known.yml
- type: DeveloperPortal
  url: https://qcs.rigetti.com
- type: Documentation
  url: https://docs.rigetti.com/qcs/
- type: APIReference
  url: https://docs.rigetti.com/qcs/api-reference
- type: GettingStarted
  url: https://docs.rigetti.com/qcs/getting-started
- type: Support
  url: https://rigetti.zendesk.com
- type: Blog
  url: https://www.rigetti.com/news
- type: GitHubOrganization
  url: https://github.com/rigetti
- type: SignUp
  url: https://www.rigetti.com/get-quantum
- type: Login
  url: https://qcs.rigetti.com/sign-in
- type: TermsOfService
  url: https://www.rigetti.com/terms
- type: PrivacyPolicy
  url: https://www.rigetti.com/privacy-policy
- type: ChangeLog
  url: https://docs.rigetti.com/qcs/changelog
- type: Website
  url: https://www.rigetti.com
image: https://docs.rigetti.com/img/rigetti.png
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 15
  pass: local-v1

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