Arize AI
Arize AI is an AI engineering and observability platform for LLM applications, agents, and traditional ML systems. The commercial Arize AX platform (with Generative and ML & CV variants) provides tracing, evaluation, experiments, prompt management, and the Alyx AI engineering agent, built on the OpenInference OpenTelemetry conventions. Phoenix is the open-source counterpart used by tens of thousands of developers for local tracing, evaluation, and prompt iteration. Arize is vendor- and framework-agnostic with 30+ instrumentation providers and an OTLP-native ingestion path.
Arize AI publishes 5 API contracts indexed on the APIs.io network, including Traces API, and 4 more. Tagged areas include LLM Observability, ML Monitoring, Open Source, OpenTelemetry, and Phoenix.
The Arize AI catalog on APIs.io includes 1 Spectral governance ruleset.
Arize AI’s developer surface includes authentication, documentation, engineering blog, pricing, and 20 more developer resources.
What this lets a business do 1
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| MLOps and AI/ML Infrastructure (LF AI & Data, MLPerf, Kubeflow) | standard | 17.2 (thin) | - | 1 |
| Agent Skills (SKILL.md packages) | standard | 17.2 (thin) | - | 1 |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
Standards implemented 2
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
APIs 5
Individual APIs this provider publishes, each with its own machine-readable definition.
Arize AX
Arize AX is the commercial AI engineering platform covering tracing, evaluation, experiments, prompt management, annotations, and dashboards for LLM applications and agents. Bui...
Phoenix
Phoenix is Arize's open-source LLM observability platform offering local tracing, evaluation, experiments, and prompt iteration. Distributed as a Python package with a local UI,...
OpenInference
OpenInference is Arize's open-source set of OpenTelemetry conventions and instrumentation libraries for LLM applications, agents, RAG pipelines, and frameworks. Provides Python ...
Alyx
Alyx is Arize's AI engineering agent that helps developers debug traces, create evaluators, build dashboards, and compare experiments inside the Arize AX platform.
Arize AI Traces API
OTLP trace ingestion
Open Collections 2
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Arize AX OTLP Ingestion Traces API
OPEN COLLECTIONArize AX OTLP Ingestion API
OPEN COLLECTIONMCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
Arize AI API pricing
Not yet checked against Arize AI's own pricing page. Compiled by API Evangelist on 2026-05-22; confirm before you rely on a figure. A free plan or tier is listed.
| Plan | Price |
|---|---|
| Free freemium | Free |
Plan details, limits and sources →
Rate limits
- Free Tier Default: 10 requests per minute
- Pro Tier Default: 120 requests per minute
Compiled by API Evangelist, not yet checked against Arize AI's documentation. Rate-limit details →
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Arize Ai Rate Limits
RATE LIMITSService Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
Arize AI
SLAFinOps 1
Cost, billing, and metering signals for API financial operations.
Arize Ai Finops
FINOPSFeatures 8
Notable capabilities this provider offers.
LLM Tracing
Capture spans for LLM calls, retrieval steps, tool invocations, and agent loops via OpenInference OTel.
LLM Evaluation
Run built-in and custom evaluators on production traces, experiments, and datasets.
Experiments
Compare prompt and model variants over curated datasets with structured logging.
Prompt Management
Playground, hub, builder, and versioning for prompts used across applications.
Annotations
Capture human feedback on traces and outputs for evaluator development and dataset curation.
Alyx AI Engineer
AI assistant for debugging, evaluator authoring, dashboarding, and experiment comparison.
ML Monitoring
Drift, data quality, and performance monitoring for traditional ML and computer vision models.
Phoenix OSS
Open-source local tracing and evaluation tool runnable in notebooks or self-hosted.
Scroll for all 8
Spectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Arize AI API Rules
SPECTRALSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Use Cases 5
What developers build with this provider.
LLM Application Observability
Monitor production LLM applications with traces, evaluators, and alerting.
Agent Debugging
Inspect multi-step agent runs across tool calls and intermediate reasoning.
RAG Quality Monitoring
Evaluate retrieval and generation quality over time in RAG systems.
ML Monitoring
Detect drift and degradation in classical ML and CV models.
Local Development
Iterate on prompts and evals locally with Phoenix before shipping to Arize AX.
Integrations 11
Pre-built integrations with other platforms and tools.
OpenAI
OpenInference instrumentation for OpenAI Chat Completions, Assistants, and Responses APIs.
Anthropic
Instrumentation for Anthropic Claude models.
LangChain
Instrumentation and evaluators for LangChain chains and agents.
LangGraph
Trace and evaluate LangGraph stateful agents.
LlamaIndex
Instrumentation for LlamaIndex RAG pipelines.
CrewAI
Trace CrewAI multi-agent crews.
DSPy
Trace and evaluate DSPy programs.
Vercel AI SDK
Instrumentation for Vercel AI SDK applications.
OpenTelemetry
OTLP-native ingestion compatible with any OTel collector or backend.
Bedrock
Instrumentation for AWS Bedrock model invocations.
Vertex AI
Instrumentation for Google Vertex AI and Gemini.
Scroll for all 11
Resources
Get Started 1
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 1
Properties that don't map to a standard resource type
Source (apis.yml)
Arize AI API — frequently asked questions
Does Arize AI have an API?
Yes. APIs.io lists 5 APIs from Arize AI, including Arize AX, Phoenix and OpenInference, and 2 more.
Is there an OpenAPI specification for the Arize AI API?
Yes. APIs.io indexes 1 OpenAPI specification for Arize AI, each linked for download from this page.
How do I authenticate with the Arize AI API?
Arize AI uses bearer-token authentication (apiKey · 2 schemes). The details are profiled on APIs.io as Arize Ai Authentication.
How much does the Arize AI API cost?
APIs.io lists 1 pricing plan for Arize AI, with each plan's price, limits and inclusions under Pricing on this page.
Does Arize AI have an MCP server?
Yes. APIs.io lists 1 MCP server for Arize AI: Remote MCP server at api.arize.com over HTTP.
Is the Arize AI API ready for AI agents?
Arize AI has a Kin Score of 36.0 out of 100 (thin) and an Agent Readiness score of 26.5 (agent-aware), scored by API Evangelist on 2026-11-06.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.