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Use HoneyHive through Corsair: one client, typed API calls. HoneyHive provides AI agent observability and evaluation across development and production:
  • Authentication: HoneyHive routes accept different key types, so the connection holds up to three keys, each sent as Authorization: Bearer <key>:
    • api_key: a classic project API key (hh_..., Settings > Project > API Keys > Project). Used by sessions, event ingestion and updates, metrics, configurations and the legacy (non-project-scoped) dataset, run and event routes.
    • data_plane_api_key (account field, optional): a data plane fine-grained key (hh_fgdp_...). Required by the project-scoped operations that take a project_id (datasets.list, experiments.getRun, events.search and the rest); HoneyHive rejects a classic key there.
    • control_plane_api_key (account field, optional): a control plane fine-grained key (hh_fgcp_..., Settings > Workspace > API Keys > Control Plane). Required by projects.*, which run on https://api.cp.us.honeyhive.ai.
    • A connection with only fine-grained keys works for the operations those keys cover; operations that need the classic key raise AuthMissingError instead of sending a fine-grained key.
  • Dedicated or self-hosted data plane: set the base_url account field to your project’s Data plane URL (default https://api.dp1.us.honeyhive.ai, shown under Settings > Project > API Keys).
  • Tracing & Sessions: Group multi-step agent and tool spans into sessions with sessions.create and stream event batches with sessions.createEventBatch or events.createBatch.
  • Datasets & Experiments: Curate evaluation datasets and run automated test suites across prompts, configurations, and models.
  • Evaluators & Metrics: Define custom metrics, deploy metric version snapshots, and run automated evaluations against trace events.
What you get:
  • 49 typed API operations

Setup

1

Install

2

Add the plugin

corsair.ts
With multiTenancy: true, scope calls with corsair.withTenant(id). See Quick start for KEK + Hub keys, and Multi-tenancy for account isolation.
3

Choose authentication

4

Connect a tenant

Mint a connect link and send the tenant to it. Hub hosts the page and delivers the result to your app — see Connect / OAuth.

Example API calls

List evaluators and metrics
Start a new tracing session
See the full list on the API page.

What’s next

API reference

Every honeyhive.api.* operation with input and output types.

Connect / OAuth

createLink, Hub delivery, and tenant connect flows.

Use with agents

Expose this plugin’s operations as MCP tools.