nansen-web-fetcher

通过 nansen 命令行工具的 web fetch 子命令，接收最多 20 个 URL 和必填问题，使用 Gemini 2.5 Flash 的 URL 上下文抓取页面并生成回答，返回 analysis 文本以及成功和失败的 URL 列表；需 NANSEN_API_KEY 或浏览器会话认证，单次约 30 秒超时。

nansen-devops

热度 57.11

最近更新 2026-09-29 11:15:09

分类：搜索依赖：第三方 API / 内部调用大模型应用场景：研究 / 摘要总结

安装技能

复制下面的话术发给你的 Agent，它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill： npx secure-skills-cli add nansen-web-fetcher

Metadata

name: nansen-web-fetcher
description: Fetch and analyze content from one or more URLs using AI (Gemini 2.5 Flash). Use when you have specific URLs and need to extract or summarize their content. Pairs well with `nansen web search` results.
metadata: {"openclaw":{"requires":{"bins":["nansen"]},"primaryEnv":"NANSEN_API_KEY","install":[{"kind":"node","package":"nansen-cli","bins":["nansen"]}]}}
allowed-tools: Bash(nansen:*)

Authentication

Nansen account API calls accept a selected nansen:api browser session or conventional API key with the same permissions. NANSEN_API_KEY takes precedence; optional primaryEnv preserves configured-key injection. Run nansen auth status for offline selection. Cached access expiry alone permits automatic renewal during an authorized task. Stop on anonymous selection, invalid state, blocked/uncertain renewal or actual auth failure; never drop a credential or fall back to anonymous x402 payment. Browser login does not grant wallet signing, privileged service identity or a persistent MCP integration key. Preserve all confirmation, signing, sanctions and geographic checks below. Browser login is available in CLI 2.0.0 within the macOS arm64 preview scope.

Web Fetch

Fetch and analyze content from one or more URLs using Gemini 2.5 Flash with URL context.

nansen web fetch https://nansen.ai --question "What products does Nansen offer?"
nansen web fetch --url https://example.com --url https://other.com --question "Compare these two sites"
nansen web fetch https://docs.uniswap.org/contracts/v4/overview --question "What changed in v4?"

Positional args and --url flags can be combined — all become URLs to fetch.

Flag	Values	Default	Purpose
`--url`	URL	—	URL to fetch (repeatable for multiple URLs, up to 20)
`--question`	string	required	Question to answer about the URL content
`--pretty`	flag	off	Human-readable JSON

Returns:

analysis — AI-generated answer to your question
retrieved_urls — URLs successfully fetched
failed_urls — URLs that could not be retrieved

Tip: Combine with web search — search first to find relevant URLs, then fetch to get full content.

# Find and analyze in two steps
nansen web search "uniswap v4 launch" --num-results 3 --fields link
nansen web fetch https://blog.uniswap.org/... --question "What are the key changes?"

Note: 30s timeout. Paywalled or bot-blocked pages may appear in failed_urls.