Quandela

aid: quandela
name: Quandela
description: 'Quandela is a Paris-region (Massy, France) photonic quantum computing company building modular, scalable, energy-efficient
  quantum systems driven by deterministic single-photon sources. Its hardware lineup includes Ascella (its first cloud-accessible
  system), Belenos (a 12-qubit second-generation machine), Canopus, and Mosaiq (its flagship prototyping platform), alongside
  Prometheus single-photon sources and the Entropy quantum random number generator. Quandela develops Perceval, the open-source
  Python framework for programming photonic quantum computers, distributed on PyPI as perceval-quandela with the perceval-interop
  bridges to Qiskit, QuTiP, cQASM and myQLM and the exqalibur native optimisation kernel. It operates Quandela Cloud, which
  — contrary to an earlier reading of this profile — DOES publish a real, anonymously readable REST contract: OpenAPI 3.0.3
  at https://api.cloud.quandela.com/openapi.json, version v2.8.0-rc4, with 55 paths, 59 operations and 54 component schemas,
  plus a Quantum Toolbox sub-specification at /qt-openapi.json. The surface covers Perceval job submission (submit-then-poll,
  with the circuit carried as an SDK-serialised opaque payload), a self-service Cloud Job Token lifecycle with a per-platform
  credit ledger, five typed Quantum Toolbox primitives (Chemistry VQE, Custom VQE, CVaR VQE, Graph DSI, Graph Isomorphism)
  each with a paired cost estimator, and the Entropy QRNG, whose draws return CHSH and min-entropy certification. Authentication
  is a single declared bearer scheme covering two distinct credentials — an account token from account.quandela.com and a
  Cloud Job Token minted over the API. Quandela also runs a Quantum Acceleration Program for enterprise pilots in cybersecurity,
  pharma, chemistry, logistics, finance, energy and aerospace, and publishes a 2024-2030 roadmap to fault-tolerant quantum
  computing.'
type: Index
accessModel:
  pricing: unknown
  onboarding: self-service
  trial: true
  try_now: true
  public: true
  label: Public API, undisclosed pricing
  confidence: medium
  source:
  - https://api.cloud.quandela.com/openapi.json
  - https://www.quandela.com/products-and-services/cloud/
  - https://cloud.quandela.com/pricing
  generated: '2026-08-17'
  method: searched
  note: The contract is public and anonymous and a free trial is offered ("Try cloud for free"), but no price is published
    — the pricing page is a JS-rendered shell and every machine-readable pricing endpoint probed 404s. Billing is prepaid
    credits metered per platform. See plans/quandela-plans-pricing.yml.
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/quandela.png
tags:
- Quantum Computing
- Photonic Quantum
- Photonics
- Single Photon Sources
- Quantum Hardware
- Quantum Cloud
- QPU
- Perceval
- Python SDK
- Quantum Random Number Generation
- Quantum Simulation
- Variational Quantum Algorithms
- Quantum Chemistry
- Graph Algorithms
- Job Orchestration
- Open-Source
- France
tags_raw:
- Quantum Computing
- Photonic Quantum
- Photonics
- Single Photon Sources
- Quantum Hardware
- Quantum Cloud
- QPU
- Perceval
- Python SDK
- Quantum Random Number Generation
- Quantum Simulation
- Variational Quantum Algorithms
- Quantum Chemistry
- Graph Algorithms
- Job Orchestration
- Open Source
- France
url: https://raw.githubusercontent.com/api-evangelist/quandela/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-08-17'
specificationVersion: '0.23'
apis:
- name: Quandela Cloud API
  description: 'The core Quandela Cloud REST surface — Perceval job submission, status/result polling, cancel and rerun, plus
    the full Cloud Job Token lifecycle (create, list, read, update, revoke, reopen, delete) and a per-platform consumption
    ledger separating credits from free credits. Submit-then-poll only: there is no webhook, callback or event surface. Ten
    of the operations in this contract are marked deprecated (singular legacy paths superseded by plural successors) with
    no published sunset dates.'
  humanURL: https://cloud.quandela.com/
  baseURL: https://api.cloud.quandela.com/
  tags:
  - Quantum Cloud
  - Job Orchestration
  - QPU
  - Perceval
  properties:
  - type: OpenAPI
    url: openapi/quandela-perceval-job-openapi.yml
  - type: OpenAPI
    url: openapi/quandela-perceval-job-token-openapi.yml
  - type: OpenAPI
    url: openapi/quandela-job-token-openapi.yml
  - type: OpenAPI
    url: openapi/quandela-platform-openapi.yml
  - type: Documentation
    url: https://perceval.quandela.net/docs/v1.2/reference/providers.html
  - type: Overlay
    url: overlays/quandela-cloud-overlay.yaml
  - type: Authentication
    url: authentication/quandela-authentication.yml
  - type: Conventions
    url: conventions/quandela-conventions.yml
  - type: ErrorCatalog
    url: errors/quandela-problem-types.yml
  - type: DataModel
    url: data-model/quandela-data-model.yml
  - type: RateLimits
    url: rate-limits/quandela-rate-limits.yml
  - type: Sandbox
    url: sandbox/quandela-sandbox.yml
- name: Quandela Quantum Toolbox API
  description: Quandela's pre-built quantum primitives, published as a separate specification at https://api.cloud.quandela.com/qt-openapi.json.
    Five fully typed algorithms — Chemistry VQE, Custom VQE, CVaR VQE, Graph DSI and Graph Isomorphism — each with dedicated
    params, status, intermediate result and result schemas, and each paired with an /estimate operation that returns nb_iterations
    / nb_shots_per_job / nb_total_shots without running the workload or spending credits. Also carries the Entropy QRNG, the
    only synchronous operations on the platform, whose draws return CHSH and min-entropy certification alongside the values.
    Unlike Perceval job submission, this surface is callable directly over HTTP with no SDK.
  humanURL: https://hub.quandela.com/integrate
  baseURL: https://api.cloud.quandela.com/
  tags:
  - Quantum Simulation
  - Variational Quantum Algorithms
  - Quantum Chemistry
  - Graph Algorithms
  - Quantum Random Number Generation
  properties:
  - type: OpenAPI
    url: openapi/quandela-quantum-toolbox-openapi.yml
  - type: OpenAPI
    url: openapi/quandela-qrng-openapi.yml
  - type: Documentation
    url: https://hub.quandela.com/integrate
  - type: Authentication
    url: authentication/quandela-authentication.yml
  - type: Conventions
    url: conventions/quandela-conventions.yml
  - type: ErrorCatalog
    url: errors/quandela-problem-types.yml
  - type: RateLimits
    url: rate-limits/quandela-rate-limits.yml
common:
- type: AgenticAccess
  url: agentic-access/quandela-agentic-access.yml
- type: Authentication
  url: authentication/quandela-authentication.yml
- type: DomainSecurity
  url: security/quandela-domain-security.yml
- type: Conventions
  url: conventions/quandela-conventions.yml
- type: ErrorCatalog
  url: errors/quandela-problem-types.yml
- type: DataModel
  url: data-model/quandela-data-model.yml
- type: Conformance
  url: conformance/quandela-conformance.yml
- type: Lifecycle
  url: lifecycle/quandela-lifecycle.yml
- type: StatusPage
  url: https://api.cloud.quandela.com/api/platforms/public
- type: ChangeLog
  url: changelog/quandela-changelog.yml
- type: ChangeLog
  url: https://github.com/Quandela/Perceval/releases
- type: Sandbox
  url: sandbox/quandela-sandbox.yml
- type: Plans
  url: plans/quandela-plans-pricing.yml
- type: RateLimits
  url: rate-limits/quandela-rate-limits.yml
- type: Packages
  url: packages/quandela-packages.yml
- type: Overlay
  url: overlays/quandela-cloud-overlay.yaml
- type: WellKnownProbe
  url: well-known/quandela-well-known.yml
- type: MCPCandidate
  url: mcp/quandela-mcp.yml
- type: LLMsTxt
  url: llms/quandela-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: AgentSkill
  name: Submit a Perceval job to a Quandela QPU and collect the result
  url: skills/quandela-submit-perceval-job.md
- type: AgentSkill
  name: Estimate then run a Quandela Quantum Toolbox algorithm
  url: skills/quandela-run-quantum-toolbox-algorithm.md
- type: AgentSkill
  name: Mint, rotate, audit and revoke Quandela Cloud Job Tokens
  url: skills/quandela-manage-cloud-job-tokens.md
- type: AgentSkill
  name: Draw certified quantum randomness from Quandela Entropy (QRNG)
  url: skills/quandela-draw-certified-quantum-randomness.md
- type: Arazzo
  name: Submit a Perceval job to Quandela Cloud and collect the result
  url: arazzo/quandela-submit-and-collect-perceval-job.yml
- type: Arazzo
  name: Estimate then run a Chemistry VQE workload on Quandela Quantum Toolbox
  url: arazzo/quandela-estimate-and-run-chemistry-vqe.yml
- type: Arazzo
  name: Rotate and audit a Quandela Cloud Job Token
  url: arazzo/quandela-rotate-and-audit-job-token.yml
- type: Website
  url: https://www.quandela.com
- type: DeveloperPortal
  url: https://hub.quandela.com
- type: Documentation
  url: https://perceval.quandela.net/docs
- type: GettingStarted
  url: https://perceval.quandela.net/docs/v1.2/getting_started.html
- type: Support
  url: https://community.quandela.com
- type: Community
  url: https://community.quandela.com
- type: GitHubOrganization
  url: https://github.com/Quandela
- type: Roadmap
  url: https://www.quandela.com/roadmap/
- type: Pricing
  url: https://cloud.quandela.com/pricing
- type: Login
  url: https://account.quandela.com/login
- type: TermsOfService
  url: https://www.quandela.com/legal-terms/
- type: PrivacyPolicy
  url: https://www.quandela.com/privacy-policy/
- type: Cloud
  url: https://cloud.quandela.com
- type: Hub
  url: https://hub.quandela.com
- type: Perceval
  url: https://perceval.quandela.net
- type: Tutorials
  url: https://perceval.quandela.net/docs/v0.13/notebooks/Tutorial.html
- type: PyPI
  url: https://pypi.org/project/perceval-quandela/
- type: GitHub
  url: https://github.com/Quandela
- type: GitHubRepository
  url: https://github.com/Quandela/Perceval
- type: SDKs
  url: packages/quandela-packages.yml
- type: SDKs
  url: https://github.com/Quandela/Perceval
- type: Interop
  url: https://github.com/Quandela/Perceval_Interop
- type: Training
  url: https://training.quandela.com
- type: Products
  url: https://www.quandela.com/products-and-services/
- type: CloudProduct
  url: https://www.quandela.com/products-and-services/cloud/
- type: PercevalProduct
  url: https://www.quandela.com/products-and-services/perceval/
- type: AccelerationProgram
  url: https://www.quandela.com/products-and-services/quantum-acceleration-program/
- type: Blog
  url: https://www.quandela.com/resources/blog/
- type: Careers
  url: https://www.quandela.com/about-us/careers/
- type: Contact
  url: https://www.quandela.com/about-us/contact-us/
- type: LinkedIn
  url: https://www.linkedin.com/company/quandela
- type: Twitter
  url: https://twitter.com/Quandela_Quantum
- type: YouTube
  url: https://www.youtube.com/@quandela
- type: Discord
  url: https://discord.gg/quandela
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-pointers-deliberately-withheld:
  note: Recorded so a later run does not "fix" these as omissions. Each artifact below EXISTS in this repository and documents
    an ABSENCE; emitting its canonical scored pointer would assert that Quandela serves a surface it does not serve.
  withheld:
  - type: WellKnown
    artifact: well-known/quandela-well-known.yml
    reason: Every /.well-known/ path 404s on the three real hosts. The three 200s recorded are SPA catch-all HTML shells,
      not documents. The probe is kept as data under the non-scored type WellKnownProbe.
  - type: SecurityTxt
    artifact: well-known/quandela-well-known.yml
    reason: /.well-known/security.txt returns 404 everywhere.
  - type: MCPServer
    artifact: mcp/quandela-mcp.yml
    reason: No MCP server exists — /mcp 404s, mcp.quandela.com does not resolve, npm has no Quandela package. The file is
      a DERIVED candidate tool list with deployment.mode = none, kept under the non-scored type MCPCandidate.
  - type: AgentCard
    artifact: null
    reason: No agent card. /.well-known/agent-card.json and /.well-known/agent.json 404 on every real host. Nothing was written
      — this artifact is never authored on a provider's behalf.
  - type: Idempotency
    artifact: conventions/quandela-conventions.yml
    reason: Zero occurrences of "idempoten" across the 59-operation contract. process_id on POST /api/jobs is a uniqueness
      guard that 400s on collision, not idempotent replay.
  - type: Deprecation
    artifact: lifecycle/quandela-lifecycle.yml
    reason: 10 operations carry deprecated:true in the spec, but there is no deprecation-policy page, no sunset date and no
      RFC 8594 Sunset or Deprecation header.
  - type: Compliance
    artifact: conformance/quandela-conformance.yml
    reason: No certification or compliance program is published — no trust centre and no named certification anywhere on the
      public surface.
  - type: Security
    artifact: null
    reason: No vulnerability disclosure policy, no security.txt, no bug bounty. probe-security-programs.py returned vdp=none
      trust=none.
  - type: AsyncAPI
    artifact: null
    reason: No event surface at all. /asyncapi.yaml, /asyncapi.json, /events and /webhooks all 404 on the API host; the API
      is submit-then-poll.
  - type: Webhooks
    artifact: null
    reason: No callback or webhook operation in the contract.
  - type: APIReference
    artifact: null
    reason: https://api.cloud.quandela.com/api/docs/ 302-redirects to account.quandela.com/login — the rendered reference
      is behind authentication, so it is not a publicly readable API reference. The OpenAPI at /openapi.json is public and
      is wired as OpenAPI instead.
  - type: CLI
    artifact: null
    reason: Quandela ships no first-party CLI.
  - type: Components
    artifact: null
    reason: Quandela ships no embeddable UI components.
  - type: OAuthScopes
    artifact: null
    reason: No oauth2 securityScheme and no scopes model — a Cloud Job Token is all-or-nothing within its commercial offer.
  - type: Postman
    artifact: null
    reason: No first-party public collection. The only Postman search hit for "quandela" is an unrelated third-party workspace
      ("candela_2025").
  - type: Protobuf
    artifact: null
    reason: No .proto in the 15-repo github.com/Quandela org. QDMI-Perceval implements the C++ Quantum Device Management Interface,
      a native C ABI.
x-enrichment:
  date: '2026-08-17'
  status: enriched
  artifacts_added: 33
  pass: local-v1
  headline: 'Reversed the prior round''s "no public REST/HTTP OpenAPI specification" finding. A real OpenAPI 3.0.3 (55 paths,
    59 operations, 54 schemas, v2.8.0-rc4) is served anonymously at https://api.cloud.quandela.com/openapi.json with a second
    Quantum Toolbox spec at /qt-openapi.json. Ownership confirmed from the spec itself: info.title "Quandela Cloud Api", servers[]
    https://api.cloud.quandela.com/, contact www.quandela.com/about-us/contact-us/, termsOfService www.quandela.com/legal-terms/.'