---
document_id: agent.collection.task.wechat_channel_id_to_username_v1
schema_version: 2
parent_document_id: agent.querying
section: querying
---

<!-- Generated by scripts.build_agent_guide; do not edit. -->

# Channel id to username / 视频号ID转用户名

Convert channel ID to finder username.

视频号 ID 转 finder 用户名。

Task / 任务: `wechat_channel_id_to_username_v1`
Platform / 平台: WeChat Channels / 视频号
Billing / 计费: 2 Credits per successful task / 每个成功任务 2 Credits
Estimate / 估价: call `estimate_collection`; start directly when `approval_required=false`, otherwise obtain approval for `upper_bound_credits`.
估价：调用 `estimate_collection`；`approval_required=false` 时直接启动，否则请用户确认 `upper_bound_credits`。

## Inputs / 输入

- `channel_id` — Channel ID / 视频号 ID; kind=text; required=True; default=''; bounds=min_length=4, max_length=64

## Minimal call / 最小调用

`estimate_collection`

```json
{
  "task_query": "将视频号 ID 转换为 finder 用户名",
  "task_code": "wechat_channel_id_to_username_v1",
  "input": {
    "channel_id": "sph_example"
  }
}
```


## Result and pagination / 结果与分页

- mode=none

Only the fields listed below are part of the stable result contract. /
只有下方列出的字段属于稳定结果契约。

## Result fields / 结果字段

- `meta.request_id` — type=string; Asklear request identifier for tracing. / 用于追踪的 Asklear 请求 ID。
- `meta.api_name` — type=string; Executed collection operation name. / 实际执行的采集操作名称。
- `meta.latency_ms` — type=integer; Collection execution latency in milliseconds. / 采集执行耗时（毫秒）。
- `meta.credits_charged` — type=integer; Asklear user-side Credits settled for this task after completion. / 任务完成后 Asklear 用户侧实际结算的 Credits。
- `data.item` — type=object|null; The projected item, or null when the provider returned no usable item. / 经过筛选的条目；供应商没有可用条目时为 null。

Use `list_collection_tasks` as the runtime authority, then `describe_collection_task` for one task's full input contract, examples and limits. Collection access is entitlement-gated. /
以 `list_collection_tasks` 返回为运行时准据，再用 `describe_collection_task` 取单个任务的完整入参契约、示例与限制；采集能力受 entitlement 控制。