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IonQ

IonQ (NYSE IONQ) is a College Park, Maryland-based public trapped-ion quantum computing company. IonQ designs, manufactures, and operates trapped-ion quantum computers (Aria, Forte, Forte Enterprise, Tempo, Harmony) and delivers them through the IonQ Quantum Cloud REST API, on-premises Forte Enterprise systems, and partner clouds (AWS Braket, Microsoft Azure Quantum, Google Cloud). The platform supports submission of QIS and native-gate circuits, multi-circuit and Quantum Function jobs, reserved Sessions, error mitigation, and organization-level usage and cost reporting. IonQ's quantum networking, security (QKD), sensing, and space-infrastructure businesses extend the trapped-ion core into a broader quantum systems portfolio.

agent native

Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.

Kin Score

API Evangelist profiles IonQ the way a machine reads it — 42 machine-readable artifacts across 7 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — IonQ scores 65.2/100 (strong), with a separate agent-readiness read of 63/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 65.2/100 · strong
Contract Quality 17.3 / 25
Developer Ergonomics 12.2 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 4.8 / 13
Governance 8.8 / 12
Discoverability 10.0 / 10
Agent readiness — 63/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile IonQ

Each block below is one kind of artifact we hold for IonQ. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 7

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

IonQ Quantum Cloud API (v0.3 Legacy)

The previous-generation IonQ Quantum Cloud REST API (v0.3) for submitting and managing jobs, characterizations, backends, and reports. Superseded by v0.4 which adds Sessions, se...

IonQ backends API

The backends API from IonQ — 2 operation(s) for backends.

IonQ characterizations API

The characterizations API from IonQ — 2 operation(s) for characterizations.

IonQ Jobs API

The Jobs API from IonQ — 11 operation(s) for jobs.

IonQ Sessions API

The Sessions API from IonQ — 4 operation(s) for sessions.

IonQ usage API

The usage API from IonQ — 1 operation(s) for usage.

IonQ whoami API

The whoami API from IonQ — 1 operation(s) for whoami.

Scroll within the panel for all 7 ·

Open Collections 1

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

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

IonQ Cloud Platform API

OPEN COLLECTION

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Ionq Plans Pricing

4 plans

PLANS

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Ionq Rate Limits

0 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Ionq Finops

FINOPS

Features 19

The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.

Notable capabilities this provider offers.

Trapped-ion QPUs with 99.99% world-record two-qubit gate fidelity
Cloud access to qpu.aria-1, qpu.aria-2, qpu.forte-1, qpu.forte-enterprise-1, and Tempo systems
On-premises Forte Enterprise rack-mounted quantum system
Ideal and noisy IonQ simulator (up to 29 qubits) with Aria and Forte noise models
REST API v0.4 with Jobs, Sessions, Backends, Characterizations, Cost, and Usage endpoints
Sessions API (beta) for reserved-block QPU execution with cost, duration, and job-count limits
Per-job cost endpoint plus organization-level usage aggregation in USD
Per-job estimate endpoint for cost projection before submission
Multi-circuit job submissions and Quantum Function jobs (QAOA, Hamiltonian energy)
QIS gateset and native-gate (GPI, GPI2, MS, ZZ) circuit inputs
Error mitigation via symmetric debiasing
Project-scoped API keys with .env workflow and SAML SSO for identity federation
Native integrations with Qiskit, Cirq, PennyLane, qBraid, CUDA-Q, TensorFlow Quantum
Partner cloud access via AWS Braket, Microsoft Azure Quantum, and Google Cloud Marketplace
ionq-core Python client generated from the OpenAPI spec under Apache 2.0
Hosted hybrid service for classical/quantum loop execution
Q-CTRL Fire Opal integration for QAOA performance enhancement
Forte Enterprise on-premises deployment option
Quantum networking, QKD, sensing, and space-based earth-observation product lines (Florida LambdaRail statewide quantum-safe network)

Scroll within the panel for all 19 ·

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Ionq Context

29 classes · 2 properties

JSON-LD

Spectral Rules 2

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

IonQ API Rules

5 rules · 4 warnings

SPECTRAL

IonQ API Rules

6 rules · 2 errors · 4 warnings

SPECTRAL

JSON Schema 3

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

IonQ Backend

9 properties

JSON SCHEMA

IonQ Job

14 properties

JSON SCHEMA

IonQ Session

12 properties

JSON SCHEMA

JSON Structure 1

JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.

JSON Structure definitions describing this provider's data shapes.

Ionq Job Structure

0 properties

JSON STRUCTURE

Examples 2

Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.

Example request and response payloads for these APIs.

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Ionq Authentication

apiKey · 1 scheme

SECURITY

Ionq Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Ionq Agentic Access

25 operations · 7 acting

25 operations · 7 acting

AGENTIC

Resources

Every other property we hold for IonQ — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Learn 1

Tutorials, courses, talks, and written guidance

Company 4

The organization behind the API

Other 1

Properties that don't map to a standard resource type

← All providers · Data indexed from github.com/api-evangelist/ionq · machine-readable index on apis.io