BASE Documentation

The master computes and serves the aggregated weight vector for the subnet. This is a public read used by validators (app_admin.py:136-157).

`GET /v1/weights/latest`

Returns the latest aggregated MasterWeightsResponse for the subnet. The master gathers active-challenge inputs and computes the response over the configured netuid and chain endpoint (app_admin.py:144-151). This is a public read (no require_admin dependency, app_admin.py:136).

curl -s "$MASTER_URL/v1/weights/latest"

Response — MasterWeightsResponse (schemas/weights.py:33-42):

Field	Type	Notes
`netuid`	integer	Subnet id; `100` for BASE (`config/settings.py:12`)
`chain_endpoint`	string	Chain endpoint used for the computation (`schemas/weights.py:35`)
`uids`	array of integer	UIDs in the weight vector (`schemas/weights.py:36`)
`weights`	array of number	Weights aligned to `uids` (`schemas/weights.py:37`)
`hotkey_weights`	object	Map of hotkey to weight (`schemas/weights.py:38`)
`computed_at`	datetime	When the vector was computed (`schemas/weights.py:39`)
`expires_at`	datetime	Freshness deadline; must be in the future (`schemas/weights.py:40`, `schemas/weights.py:44-48`)
`source_challenges`	array	Per-challenge contributions, `ChallengeWeightsResult` (`schemas/weights.py:41`)
`metagraph_updated_at`	datetime	When the metagraph snapshot was taken (`schemas/weights.py:42`)

Each entry in source_challenges is a ChallengeWeightsResult (schemas/weights.py:19-24):

Field	Type	Notes
`slug`	string	Challenge slug (`schemas/weights.py:20`)
`emission_percent`	number	Challenge emission share (`schemas/weights.py:21`)
`weights`	object	Per-hotkey weights from the challenge (`schemas/weights.py:22`)
`ok`	boolean	Whether collection succeeded; default `true` (`schemas/weights.py:23`)
`error`	string or null	Error detail when `ok` is false (`schemas/weights.py:24`)

The full field-level schema, including the related ChallengeWeightsResponse and FinalWeights models, is on the Weights schema page.

Error responses

Status	When	Source
`503`	The master weight service is unavailable	`app_admin.py:138-142`
`502`	Computation raised an unexpected error	`app_admin.py:154-157`

Freshness

The master weights freshness window is defined by MASTER_WEIGHTS_FRESHNESS_SECONDS = 720 (schemas/weights.py:8). The expires_at field is validated to be in the future when the response is built (schemas/weights.py:44-48).

Weights pipeline

How this vector is computed and normalized each epoch.

Validator network

The submit-only process that posts this vector on-chain.

Weights schema

The field-level models behind this response.

CLI

API

Configuration

Protocols

Weights API

`GET /v1/weights/latest`

Error responses

Freshness

Weights pipeline

Validator network

Weights schema

​GET /v1/weights/latest

​Error responses

​Freshness

​Related

Weights pipeline

Validator network

Weights schema

`GET /v1/weights/latest`

Error responses

Freshness

Related