niche · 0.2 market industry

Quantum Computing

Score 19.6 / 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.

Exemplar 1 Complete, well-documented, and agent-ready
Microsoft Azure QuantumQuantumAzureMicrosoft2 APIs68.1
Strong 4 Solid coverage with minor gaps
IBM QuantumAnalyticsJob6 APIs64.3D-WaveQuantum AnnealingOptimizationHybrid Quantum-Classical4 APIs61.2Google Quantum AIQuantumHardwareNISQ1 API57.7IonQTrapped IonQPUARIA1 API56.7
Developing 9 Usable, with meaningful gaps to close
QC WareCompanyComputational ChemistryQuantum Chemistry4 APIs53.5Rigetti ComputingSuperconducting QubitsQuantum Cloud ServicesQCS1 API53.3Amazon BraketQuantum HardwareHybrid Quantum-ClassicalQPU1 API49.1Multiverse ComputingArtificial IntelligenceMachine LearningInferenceModel Compression2 APIs47.9Alice BobCompanyQuantumCloud Computing2 APIs47.7QuandelaPhotonic QuantumPhotonicsSingle Photon Sources8 APIs47.2IQM Quantum ComputersQuantum CloudHigh Performance ComputingResearch1 API44.4StrangeworksCompanyOptimizationHigh Performance Computing3 APIs43.2Rigetti ComputingCompanyQuantum CloudDeveloper Tools1 API39.5
Thin 6 Limited public surface area
Rigetti & CoCompanyQuantumInfrastructure1 API36.8RiverlaneQuantum Error CorrectionDecoderScientific Computing1 API33.4Q CtrlCompanyQuantum ControlQuantum Sensing1 API32.4Quantum ArtCompanyQuantum as a ServiceQiskit1 API31.2XanaduPhotonic QuantumQuantum Machine LearningQuantum Chemistry14 APIs30.7Apache MahoutDistributed ComputingMachine LearningPython2 APIs27.9
Emerging 13 Early or largely undocumented
Kipu QuantumCompanyDeep TechQuantum1 API24.5QuEra ComputingNeutral AtomAnalog Hamiltonian SimulationAWS Braket8 APIs22.3QuantinuumTrapped IonQuantum HardwareQuantum Software9 APIs20.4PasqalNeutral AtomQuantumQPU8 APIs18.7InfleqtionQuantum SoftwareNeutral AtomAtomic Clocks1 API16.6Zapata QuantumCompanyQuantum SoftwareArtificial Intelligence15.5ColibriCompanyDeep TechSDK15.4Horizon Quantum ComputingCompanyQuantum SoftwareDeveloper Tools13.5QolabCompanySuperconducting QubitsQuantum Hardware12.9Cajal TechnologiesCompanyFormal VerificationArtificial IntelligenceMathematics12.6Quantum MachinesQuantum ControlPulse Level ProgrammingQUA13 APIs12.4QuEra ComputingNeutral AtomAquilaBloqade12.3ClassiqQuantum SoftwareQuantum Algorithm DesignQuantum Programming Language11.8
Minimal 20 Almost no public developer surface
DiraqCompanySemiconductorsDeep Tech10.9PhasecraftCompanyComputeQuantum Algorithms10.81QBitCompanyOptimizationMachine Learning10.3PhotonicCompanyQuantum NetworkingSilicon Photonics10.3Quantum CircuitsCompanyQuantum HardwareSuperconducting Qubits9.3SeeqcCompanySuperconductingSemiconductors8.8EleqtronCompanyTrapped IonHardware7.5Oxford IonicsCompanyFrontier TechQuantum7.5SCENARIO-X GLOBAL HOLDINGCompanyFinancial ServicesRisk ManagementStress Testing7.2QunnectCompanyQuantum NetworkingHardware6.9SygaldryCompanyArtificial IntelligenceAI Infrastructure4.4PlanqcCompanyDeep TechHardware4.2Atom ComputingNeutral AtomGate-Based QuantumLogical Qubits4.1NVision Imaging TechnologiesCompanyEngineered BiologyQuantum TechnologyMolecular Imaging4.1PsiQuantumPhotonic Quantum ComputingFault-Tolerant Quantum ComputingFTQC4.1QphoxCompanyQuantum NetworkingHardware3.7Quantum MotionCompanyDeep TechHardware3.4BosequantumCompanyFintechInvestment3.0Iceberg QuantumCompanyQuantum Error CorrectionFault Tolerance3.0OratomicCompanyAI InfrastructureNeutral Atom3.0

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 12 Solid coverage with minor gaps
Qiskit Functions Catalog APIPremium / Flex-tier service for discovering and invoking abstracted Qiskit Functions — pre-packaged quantum...64.3Qiskit Transpiler as a Service APICloud-hosted, AI-augmented transpilation of OpenQASM 3 circuits down to IBM Quantum native gates and backen...64.3CirqCirq is an Apache 2.0 Python framework for designing, manipulating, simulating, and executing Noisy Interme...57.7OpenFermionOpenFermion is an Apache 2.0 library for translating quantum chemistry and materials science problems (elec...57.7qsimqsim is a high-performance C++ state-vector simulator with a Python (qsimcirq) binding that plugs directly ...57.7QualtranQualtran provides abstractions (Bloqs) for expressing, decomposing, and resource-estimating fault-tolerant ...57.7ReCirqReCirq is a research-grade collection of reproducible Cirq experiments and applications published by Google...57.7StimStim is a fast stabilizer-circuit simulator and detector-error-model toolchain that underpins Google Quantu...57.7TensorFlow QuantumTensorFlow Quantum (TFQ) is a hybrid quantum-classical machine learning library that integrates Cirq circui...57.7Tesseract DecoderTesseract is a search-based maximum-likelihood decoder for quantum error correction that accompanies Stim. ...57.7UnitaryUnitary is an API library for adding quantum behaviours (superposition, entanglement, measurement) into cla...57.7IonQ Quantum Cloud API (v0.3 Legacy)The previous-generation IonQ Quantum Cloud REST API (v0.3) for submitting and managing jobs, characterizati...56.7
Developing 4 Usable, with meaningful gaps to close
Rigetti QCS Controller Service (gRPC)gRPC Controller service that executes encrypted Controller Jobs on a Rigetti QPU endpoint and returns measu...53.3Rigetti QCS Translation Service (gRPC)gRPC Translation service that compiles native Quil programs into encrypted Controller Jobs for execution on...53.3IQM Resonance APIThe REST API behind IQM Resonance, IQM's quantum cloud service. It lists the quantum computers available on...44.4Strangeworks SDK GraphQL APIThe GraphQL API the Strangeworks Python SDK is built on. Exposes the workspace a user's API key belongs to,...43.2
Thin 2 Limited public surface area
Deltakit Cloud APIBearer-token cloud service backing the Deltakit SDK. Exposes the compute-heavy and proprietary parts of the...33.4QumatQumat is a unified Python API for building and executing quantum circuits across multiple quantum computing...27.9
Emerging 26 Early or largely undocumented
Kipu Quantum Hub APIREST API and Python SDK for the Kipu Quantum Hub — submit quantum-classical workflows, run pre-built quantu...24.5Bloqade Analog Python SDKBloqade Analog (pip install bloqade-analog) is QuEra's Python SDK for writing, simulating, and submitting a...22.3Bloqade Circuit Python SDKBloqade Circuit is the gate-model eDSL component of the Bloqade family, built on the Bloqade Core eDSL infr...22.3Bloqade Shuttle and Lanes Compilation SDKsBloqade Shuttle is the SDK for simulating and running neutral-atom programs with explicit atom movement; Bl...22.3Bloqade.jl Julia SDKBloqade.jl is QuEra's Julia package for quantum computation and quantum simulation based on the neutral-ato...22.3Kirin Kernel IR InfrastructureKirin (Kernel Intermediate Representation Infrastructure) is QuEra's Python compiler framework that underpi...22.3QuEra Aquila on AWS BraketAquila is QuEra's 256-qubit neutral-atom quantum computer, the first publicly accessible neutral-atom QPU. ...22.3QuEra Gemini Neutral-Atom Quantum ComputerGemini-class is QuEra's gate-model neutral-atom quantum computer with 260 Rubidium-87 physical qubits, all-...22.3tsim Universal QEC Simulatortsim is QuEra's open-source fast universal quantum circuit sampler for QEC based on ZX stabilizer rank deco...22.3Quantinuum NexusNexus is Quantinuum's all-in-one quantum computing cloud platform. It brokers access to Quantinuum H-Series...20.4Quantinuum Systems (H-Series)The Quantinuum Systems API exposes the H-Series trapped-ion (QCCD) quantum computers — System Model H1, Sys...20.4Pasqal Cloud Services APIREST API for Pasqal Cloud Services — submit and manage quantum Batches and Jobs on Pasqal Fresnel QPUs and ...18.7SuperstaqSuperstaq is Infleqtion's open-source quantum software platform. Developers write circuits in Qiskit, Cirq,...16.6py-qua-toolsToolbox of Python utilities for QUA experiments — analog filters, mixer calibration, plotting, calibration ...12.4qm-qua Python SDKOfficial Python SDK for the QUA pulse-level programming language. Provides the QuantumMachinesManager clien...12.4qm-saas Cloud SimulatorCloud-hosted OPX simulator distributed as the qm-saas Python package. Allows developers to author and valid...12.4QUA DashboardsInteractive dashboards (Plotly Dash / Streamlit) for visualizing QUA experiment results and live data streams.12.4QUA Libraries (qua-libs)High-level libraries and reference experiments built over QUA. Covers superconducting, semiconductor, NV, a...12.4QUAlibrateUser-programmable calibration software for large-scale quantum computers. Orchestrates calibration graphs (...12.4QUAlibrate AppTypeScript front-end web application for running and visualizing QUAlibrate calibration graphs.12.4QUAlibrate ConfigConfiguration management package for QUAlibrate deployments.12.4QUAlibrate CoreCore Python library that defines the calibration node and graph abstractions used by QUAlibrate.12.4QUAlibrate RunnerExecution service that runs QUAlibrate calibration nodes and graphs.12.4QUAlibration LibrariesCollection of calibration graph building blocks (qubit spectroscopy, Rabi, T1, T2, readout calibration, etc...12.4QUAM BuilderBuilder tool for generating QUAM state from hardware wiring and configuration inputs.12.4Quantum Abstract Machine (QUAM)Framework for abstracting and managing quantum programming environments on top of QUA. Provides an object m...12.4

Score breakdown

Frequency
53.6
log-scaled weighted occurrences
Breadth
1.4
spread across providers
Quality lift
29.1
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Related tags

QPU 8 co-occurrences Neutral Atom 8 co-occurrences Scientific Computing 9 co-occurrences Deep Tech 21 co-occurrences Superconducting Qubits 6 co-occurrences Quantum Software 6 co-occurrences Quantum 7 co-occurrences Fault Tolerance 6 co-occurrences

Where this tag comes from

Provider tag53
Api tag44

Cohort brief

Auto-generated

The 49 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
49
of 53 in the catalog
Mean Kin Score
25.2
+2.3 vs catalog 22.9
Mean Agent Readiness
9.2
-2.7 vs catalog 11.9
Spread
3.4–68.1
median 16.6 · σ 19.4
How the 49 split by band
Exemplar 1Strong 4Developing 9Thin 6Emerging 13Minimal 16
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Developer Ergonomics 32.8 23.2 +9.6 49
Operational Transparency 15.8 13.7 +2.1 49
Discoverability 59.5 58.1 +1.4 49
Access Clarity 27.2 26.5 +0.7 49
Contract Quality 17.4 17.6 -0.2 49
Contract Governance 3.9 6.3 -2.4 49

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% 14% -14
MCP server (first-party) 0% 12% -12
Agent Skills 0% 0% 0
OAuth scopes 8% 11% -3
Security 100% 98% +2
Arazzo workflows 8% 2% +6
Governance rules 14% 14% 0

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 68.1
  2. 2 IBM Quantum 64.3
  3. 3 D-Wave 61.2
  4. 4 Google Quantum AI 57.7
  5. 5 IonQ 56.7
  6. 6 Rigetti Computing 53.3
  7. 7 QC Ware 52.9
  8. 8 Amazon Braket 49.1
  9. 9 Multiverse Computing 47.9
  10. 10 Alice Bob 47.7
Top by Agent Readiness
  1. 1 IBM Quantum 29.8
  2. 2 Rigetti Computing 29.3
  3. 3 Rigetti Computing 29
  4. 4 Rigetti & Co 29
  5. 5 Quandela 28.2
  6. 6 Google Quantum AI 27.8
  7. 7 Multiverse Computing 27.6
  8. 8 D-Wave 27.3
  9. 9 IonQ 26.9
  10. 10 QC Ware 25.9
All 53 members of this roster resolve to a provider in the catalog; 49 carry a score (92%). The figures above describe the scored members only.
Coverage caveat. 42 of 49 scored members had under half their catalog-attributable points satisfied at all (catalog_earned / catalog_max < 0.5). They are INCLUDED in the mean above. A large share here means the cohort mean is partly a measurement of how far our enrichment reached, not only of how these providers publish.Generated from the catalog build of 5 October 2026, across 29093 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.

Work with this as data

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Tools for tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • 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.
All 92 tools →

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The distribution (Pro) 
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