# Quandela Quantum Toolbox API

**Canonical:** https://apis.io/apis/quandela/quandela-quantum-toolbox-api/  
**Provider:** Quandela — https://apis.io/providers/quandela/  
**Base URL:** https://api.cloud.quandela.com/  
**Documentation:** https://hub.quandela.com/integrate

Quandela Quantum Toolbox API is one of 2 APIs that [Quandela](https://apis.io/providers/quandela/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Quantum Simulation, Variational Quantum Algorithms, Quantum Chemistry, Graph Algorithms, and Quantum Random Number Generation. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, authentication docs, and rate-limit docs.

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.

## Machine-readable artifacts (7)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/quandela/refs/heads/main/openapi/quandela-quantum-toolbox-openapi.yml
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/quandela/refs/heads/main/openapi/quandela-qrng-openapi.yml
- **Documentation** — https://hub.quandela.com/integrate
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/quandela/refs/heads/main/authentication/quandela-authentication.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/quandela/refs/heads/main/conventions/quandela-conventions.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/quandela/refs/heads/main/errors/quandela-problem-types.yml
- **RateLimits** — https://raw.githubusercontent.com/api-evangelist/quandela/refs/heads/main/rate-limits/quandela-rate-limits.yml

## Other Quandela APIs (1)

- [Quandela Cloud API](https://apis.io/apis/quandela/quandela-cloud-api/)

## Tags

Quantum Simulation, Variational Quantum Algorithms, Quantum Chemistry, Graph Algorithms, Quantum Random Number Generation

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/quandela/quandela-quantum-toolbox-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/quandela/.