niche · 0.0 market industry

Quantum Computing

Score 19.4 / 100 53 providers 44 APIs Search apis.io →

Providers using this tag (53)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Strong 8 Solid coverage with minor gaps
Developing 7 Usable, with meaningful gaps to close
Thin 6 Limited public surface area
Emerging 15 Early or largely undocumented
Minimal 17 Almost no public developer surface

APIs with this tag (44)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Strong 14 Solid coverage with minor gaps
Qiskit Functions Catalog APIPremium / Flex-tier service for discovering and invoking abstracted Qiskit Functions — pre-packaged quantum...64.4Qiskit Transpiler as a Service APICloud-hosted, AI-augmented transpilation of OpenQASM 3 circuits down to IBM Quantum native gates and backen...64.4IonQ Quantum Cloud API (v0.3 Legacy)The previous-generation IonQ Quantum Cloud REST API (v0.3) for submitting and managing jobs, characterizati...57.8CirqCirq is an Apache 2.0 Python framework for designing, manipulating, simulating, and executing Noisy Interme...57.3OpenFermionOpenFermion is an Apache 2.0 library for translating quantum chemistry and materials science problems (elec...57.3qsimqsim is a high-performance C++ state-vector simulator with a Python (qsimcirq) binding that plugs directly ...57.3QualtranQualtran provides abstractions (Bloqs) for expressing, decomposing, and resource-estimating fault-tolerant ...57.3ReCirqReCirq is a research-grade collection of reproducible Cirq experiments and applications published by Google...57.3StimStim is a fast stabilizer-circuit simulator and detector-error-model toolchain that underpins Google Quantu...57.3TensorFlow QuantumTensorFlow Quantum (TFQ) is a hybrid quantum-classical machine learning library that integrates Cirq circui...57.3Tesseract DecoderTesseract is a search-based maximum-likelihood decoder for quantum error correction that accompanies Stim. ...57.3UnitaryUnitary is an API library for adding quantum behaviours (superposition, entanglement, measurement) into cla...57.3Rigetti QCS Controller Service (gRPC)gRPC Controller service that executes encrypted Controller Jobs on a Rigetti QPU endpoint and returns measu...55.5Rigetti QCS Translation Service (gRPC)gRPC Translation service that compiles native Quil programs into encrypted Controller Jobs for execution on...55.5
Developing 2 Usable, with meaningful gaps to close
Thin 2 Limited public surface area
Emerging 26 Early or largely undocumented
Bloqade Analog Python SDKBloqade Analog (pip install bloqade-analog) is QuEra's Python SDK for writing, simulating, and submitting a...23.9Bloqade Circuit Python SDKBloqade Circuit is the gate-model eDSL component of the Bloqade family, built on the Bloqade Core eDSL infr...23.9Bloqade Shuttle and Lanes Compilation SDKsBloqade Shuttle is the SDK for simulating and running neutral-atom programs with explicit atom movement; Bl...23.9Bloqade.jl Julia SDKBloqade.jl is QuEra's Julia package for quantum computation and quantum simulation based on the neutral-ato...23.9Kirin Kernel IR InfrastructureKirin (Kernel Intermediate Representation Infrastructure) is QuEra's Python compiler framework that underpi...23.9QuEra Aquila on AWS BraketAquila is QuEra's 256-qubit neutral-atom quantum computer, the first publicly accessible neutral-atom QPU. ...23.9QuEra Gemini Neutral-Atom Quantum ComputerGemini-class is QuEra's gate-model neutral-atom quantum computer with 260 Rubidium-87 physical qubits, all-...23.9tsim Universal QEC Simulatortsim is QuEra's open-source fast universal quantum circuit sampler for QEC based on ZX stabilizer rank deco...23.9Quantinuum NexusNexus is Quantinuum's all-in-one quantum computing cloud platform. It brokers access to Quantinuum H-Series...22.1Quantinuum Systems (H-Series)The Quantinuum Systems API exposes the H-Series trapped-ion (QCCD) quantum computers — System Model H1, Sys...22.1Pasqal Cloud Services APIREST API for Pasqal Cloud Services — submit and manage quantum Batches and Jobs on Pasqal Fresnel QPUs and ...19.5SuperstaqSuperstaq is Infleqtion's open-source quantum software platform. Developers write circuits in Qiskit, Cirq,...18.1Kipu Quantum Hub APIREST API and Python SDK for the Kipu Quantum Hub — submit quantum-classical workflows, run pre-built quantu...17.8py-qua-toolsToolbox of Python utilities for QUA experiments — analog filters, mixer calibration, plotting, calibration ...14.0qm-qua Python SDKOfficial Python SDK for the QUA pulse-level programming language. Provides the QuantumMachinesManager clien...14.0qm-saas Cloud SimulatorCloud-hosted OPX simulator distributed as the qm-saas Python package. Allows developers to author and valid...14.0QUA DashboardsInteractive dashboards (Plotly Dash / Streamlit) for visualizing QUA experiment results and live data streams.14.0QUA Libraries (qua-libs)High-level libraries and reference experiments built over QUA. Covers superconducting, semiconductor, NV, a...14.0QUAlibrateUser-programmable calibration software for large-scale quantum computers. Orchestrates calibration graphs (...14.0QUAlibrate AppTypeScript front-end web application for running and visualizing QUAlibrate calibration graphs.14.0QUAlibrate ConfigConfiguration management package for QUAlibrate deployments.14.0QUAlibrate CoreCore Python library that defines the calibration node and graph abstractions used by QUAlibrate.14.0QUAlibrate RunnerExecution service that runs QUAlibrate calibration nodes and graphs.14.0QUAlibration LibrariesCollection of calibration graph building blocks (qubit spectroscopy, Rabi, T1, T2, readout calibration, etc...14.0QUAM BuilderBuilder tool for generating QUAM state from hardware wiring and configuration inputs.14.0Quantum Abstract Machine (QUAM)Framework for abstracting and managing quantum programming environments on top of QUA. Provides an object m...14.0

Score breakdown

Frequency
53.2
log-scaled weighted occurrences
Breadth
1.5
spread across providers
Quality lift
28.8
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Related tags

QPU 9 co-occurrences Neutral Atom 8 co-occurrences Quantum 8 co-occurrences Scientific Computing 9 co-occurrences Deep Tech 21 co-occurrences Superconducting Qubits 6 co-occurrences Quantum Software 6 co-occurrences Fault Tolerance 6 co-occurrences

Where this tag comes from

Provider tag53
Api tag44

Cohort brief

Auto-generated

The 50 providers in the APIs.io catalog tagged Quantum Computing, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
50
all scored
Mean Kin Score
26.5
+2.5 vs catalog 24
Mean Agent Readiness
9.7
-2.7 vs catalog 12.4
Spread
3.3–66.3
median 18 · σ 19.6
How the 50 split by band
Exemplar 0Strong 8Developing 7Thin 6Emerging 15Minimal 14
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 33.4 23.4 +10 50
Access Clarity 28.8 26.5 +2.3 50
Operational Transparency 16.2 14 +2.2 50
Discoverability 61.6 61 +0.6 50
Contract Quality 20.1 20.1 0 50
Contract Governance 4.5 6.5 -2 50

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 0% 10% -10
MCP server (first-party) 0% 13% -13
Agent Skills 0% 0% 0
OAuth scopes 8% 11% -3
Security 100% 96% +4
Arazzo workflows 8% 2% +6
Governance rules 16% 13% +3

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Microsoft Azure Quantum 66.3
  2. 2 IBM Quantum 64.4
  3. 3 D-Wave 61.5
  4. 4 AWS Braket 60.4
  5. 5 IonQ 57.8
  6. 6 Google Quantum AI 57.3
  7. 7 QC Ware 55.6
  8. 8 Rigetti Computing 55.5
  9. 9 Alice Bob 49
  10. 10 Multiverse Computing 48.4
Top by Agent Readiness
  1. 1 IBM Quantum 29.8
  2. 2 Rigetti Computing 29.3
  3. 3 AWS Braket 29.2
  4. 4 Rigetti Computing 29
  5. 5 Rigetti & Co 29
  6. 6 Quandela 28.2
  7. 7 Google Quantum AI 27.8
  8. 8 Multiverse Computing 27.6
  9. 9 D-Wave 27.3
  10. 10 IonQ 26.9
All 53 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 20 September 2026, across 27620 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

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  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • 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.
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