Arize Phoenix · Schema
ExperimentRun
Phoenix ExperimentRun schema
LLM ObservabilityAI EvaluationOpenTelemetryTracingLLMOpsAI MonitoringOpen-SourcePrompt EngineeringDatasetsExperiments
Properties
| Name | Type | Description |
|---|---|---|
| dataset_example_id | string | The ID of the dataset example used in the experiment run |
| output | object | The output of the experiment task |
| repetition_number | integer | The repetition number of the experiment run |
| start_time | string | The start time of the experiment run |
| end_time | string | The end time of the experiment run |
| trace_id | object | The ID of the corresponding trace (if one exists) |
| error | object | Optional error message if the experiment run encountered an error |
| id | string | The ID of the experiment run |
| experiment_id | string | The ID of the experiment |
JSON Schema
{
"$schema": "http://json-schema.org/draft-07/schema#",
"$id": "https://raw.githubusercontent.com/api-evangelist/phoenix/main/json-schema/phoenix-experimentrun.json",
"title": "ExperimentRun",
"description": "Phoenix ExperimentRun schema",
"properties": {
"dataset_example_id": {
"type": "string",
"title": "Dataset Example Id",
"description": "The ID of the dataset example used in the experiment run"
},
"output": {
"title": "Output",
"description": "The output of the experiment task"
},
"repetition_number": {
"type": "integer",
"exclusiveMinimum": 0.0,
"title": "Repetition Number",
"description": "The repetition number of the experiment run"
},
"start_time": {
"type": "string",
"format": "date-time",
"title": "Start Time",
"description": "The start time of the experiment run"
},
"end_time": {
"type": "string",
"format": "date-time",
"title": "End Time",
"description": "The end time of the experiment run"
},
"trace_id": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Trace Id",
"description": "The ID of the corresponding trace (if one exists)"
},
"error": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Error",
"description": "Optional error message if the experiment run encountered an error"
},
"id": {
"type": "string",
"title": "Id",
"description": "The ID of the experiment run"
},
"experiment_id": {
"type": "string",
"title": "Experiment Id",
"description": "The ID of the experiment"
}
},
"type": "object",
"required": [
"dataset_example_id",
"output",
"repetition_number",
"start_time",
"end_time",
"id",
"experiment_id"
]
}
Work with this as data
Every JSON Schema here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for schemas
4 MCP tools reach this
find_json_schemasBrowse and filter every JSON Schema in the catalog.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.
Call it yourself
curl for this page
This JSON Schema
curl "https://apis.io/api/v1/json-schemas/phoenix-experimentrun"
All schemas
curl "https://apis.io/api/v1/json-schemas?limit=25"
Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.