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 API contracts indexed on the APIs.io network, including Account API, Authentication API, Client Applications API, and 6 more. Tagged areas include Company, Quantum Computing, Quantum, Infrastructure, and Developers.

The Rigetti & Co catalog on APIs.io includes 1 Spectral governance ruleset.

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 📡 Profile data on GitHub

38.5/100 thin ▬ flat Agent 31/100 agent ready saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 4 Agent Skills

Company Quantum Computing Quantum Infrastructure Developers Cloud Computing QPU

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 38.5/100 · thin

Contract Quality 9.4 / 19

Developer Ergonomics 5.6 / 15

Access Clarity 5.1 / 15

Operational Transparency 1.0 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 3.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 31/100 · 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/rigetti-and-co/"><img src="https://apis.io/badge/rigetti-and-co/card.svg" alt="Rigetti & Co on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 34.2 — up to +13.2 composite points
Developer Ergonomics scores 37.5 — up to +12.5 composite points
Contract Quality scores 50.3 — up to +12.4 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/rigetti-and-co/apis.yml: open an issue on github.com/api-evangelist/rigetti-and-co to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Quantum Computing (hardware, cloud and software)	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

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 Client Applications 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 Quantum Processors 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

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

Rigetti & Co Health Check API

The Health Check API from Rigetti & Co — 1 operation(s) for health check.

Scroll for all 9

Open Collections 9

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

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 9

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Check Rigetti QCS account balance and billing

AGENT SKILL

Open an execution engagement against a Rigetti endpoint

AGENT SKILL

Discover Rigetti quantum processors and their capabilities

AGENT SKILL

Reserve execution time on a Rigetti QPU

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Rigetti & Co API Rules

65 rules · 46 errors 13 warnings 6 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Rigetti And Co Qcs Overlay

2 actions · update · rigetti-and-co-qcs-openapi.yml

DERIVED

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 · 16 acting · 3 human-in-the-loop

52 operations · 16 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: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-09-16'
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
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 Client Applications 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-quantumprocessors-api
  name: Rigetti & Co Quantum Processors 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
  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
- aid: rigetti-and-co:rigetti-and-co-health-check-api
  name: Rigetti & Co Health Check API
  description: The Health Check API from Rigetti & Co — 1 operation(s) for health check.
  humanURL: https://docs.rigetti.com/qcs/
  baseURL: https://api.qcs.rigetti.com
  tags:
  - Health Check
  properties:
  - type: OpenAPI
    url: openapi/rigetti-and-co-health-check-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

Rigetti & Co API — frequently asked questions

Does Rigetti & Co have an API?

Yes. APIs.io lists 9 APIs from Rigetti & Co, including Rigetti & Co Account API, Rigetti & Co Authentication API and Rigetti & Co Client Applications API, and 6 more.

Is there an OpenAPI specification for the Rigetti & Co API?

Yes. APIs.io indexes 9 OpenAPI specifications for Rigetti & Co, each linked for download from this page.

How do I authenticate with the Rigetti & Co API?

Rigetti & Co uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Rigetti And Co Authentication.

Is the Rigetti & Co API ready for AI agents?

Rigetti & Co has a Kin Score of 38.5 out of 100 (thin) and an Agent Readiness score of 30.5 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/rigetti-and-co"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/rigetti-and-co/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/rigetti-and-co/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.