---
title: "Attach production scores to one of your director traces"
method: POST
path: "/v1/traces/{traceId}/scores"
tags: ["traces"]
---

# Attach production scores to one of your director traces

`POST /v1/traces/{traceId}/scores`

## Request

- Base URL: `https://api.cueframe.ai`
- URL: `https://api.cueframe.ai/v1/traces/{traceId}/scores`
- Auth: one of:
  - HTTP bearer
  - OAuth 2 (authorization code, authorization URL `https://api.cueframe.ai/api/auth/mcp/authorize`, token URL `https://api.cueframe.ai/api/auth/mcp/token`)
  - API key in header `PAYMENT-SIGNATURE`

Record 1–10 named scores (0..1) on a trace the CueFrame gateway produced for YOUR director run — the trace id is the `trace_id` the client stamped on that run's requests. Only the trace's own user may score it; any other trace id answers 404. Scores are accepted asynchronously and acknowledged with 202. Free.

## Path parameters

- `traceId` string, required

## Request body

- TraceScoresRequest: POST /traces/:traceId/scores body.
  - `scores` object[], required
    - `name` string, required
    - `value` number, required
    - `comment` string

## Response `202`

Scores accepted and forwarded.

- TraceScoresResponse: POST /traces/:traceId/scores response.
  - `accepted` integer, required

## Other responses

- `400`: Bad request — validation_error / invalid_cursor / invalid_query.
- `401`: Missing or invalid Authorization header.
- `402`: Payment required. Returned when the caller presents no API key on a priced operation: the body AND the `Payment-Required` header carry the x402 v2 challenge (accepted scheme, network, USDC asset, amount, payTo). Sign the EIP-3009 authorization and retry with a `PAYMENT-SIGNATURE` header. A KEYED caller sees this status instead when their plan lacks or has exhausted the feature (`billing_required`).
- `403`: Forbidden — permission insufficient.
- `404`: Resource not found.
- `429`: Rate limited. Retry-After header present.
- `500`: Internal error.
- `503`: Service unavailable — billing_unavailable / honest-503 for runtime deps.

---

[API](https://skmtc.dev/cueframe/apis/cueframe-api.md) · [All operations](https://skmtc.dev/cueframe/apis/cueframe-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cueframe/apis/cueframe-api/revisions/8f9bfe362b4a?raw)