ParallelExtractTool

Setup:

Install langchain-parallel and set environment variable PARALLEL_API_KEY.

pip install -U langchain-parallel
export PARALLEL_API_KEY="your-api-key"

Key init args:

api_key: Optional[SecretStr] Parallel API key. If not provided, will be read from PARALLEL_API_KEY env var. base_url: str Base URL for Parallel API. Defaults to "https://api.parallel.ai". max_chars_per_extract: Optional[int] Tool-wide default cap on full_content size (per URL). Only applied when full_content is passed as True (a settings object always wins).

Instantiation:

from langchain_parallel import ParallelExtractTool

tool = ParallelExtractTool()

Invocation:

result = tool.invoke({
    "urls": ["https://en.wikipedia.org/wiki/Artificial_intelligence"],
    "search_objective": "Main applications of AI",
    "full_content": False,
})
for r in result:
    print(r["url"], r.get("title"))

Async:

result = await tool.ainvoke({"urls": [...]})

Response shape (list[dict]): Each item carries url, title, optional publish_date, and either excerpts (always present in v1) and/or full_content. Errors carry error_type and http_status_code.