providers tells Managed Research which provider capability a run may use. It is separate from agent_model.
Public example
agent_harness and agent_model when you choose them explicitly.
Provider bindings
Provider bindings can include non-secret config and limits:api_key=..., the SDK
fetches the backend’s published sealed-box key and encrypts the provider key
before sending it. Direct API integrations should send encrypted_key_b64 and
must not place raw keys in launch requests, provider config, logs, or prompts.
TLS remains required for the transport in addition to payload sealing.
Provider keys are infrastructure, not a public plan surface for launch.
Managed Research plan and Beta Access checks are enforced through billing
entitlements and run-start preflight.
Availability
Backend preflight is authoritative for:- missing credentials
- provider launch availability
- budget and entitlement blockers
- unsupported provider/model combinations
- required capability gaps