exa-web-search-free

exa-web-search-free is a skill for Claude Code, Codex from UnicomAI/wanwu. It costs 42 tokens per session (687 once invoked), scanned B, original, Apache-2.0.

A web and code search add-on that uses Exa to find current information, news, documentation, examples, and company information without an API key.

In plain words
What is it for?
Use it to research the web, find examples from GitHub and Stack Overflow, and gather business information and news about companies.
Why use it?
It reduces the need to search several sources manually when you need up-to-date facts or usable code examples.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to research the web, find examples from GitHub and Stack Overflow, and gather business information and news about companies.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/unicomai/wanwu/exa-web-search-free
About the project

Wanwu is an enterprise platform for building AI agents, workflows, retrieval-augmented applications, and managing models in multi-tenant environments. It is designed for developers and enterprise teams delivering AI applications and integrations. The catalogue entries provide skills and agents for using the platform.

UnicomAI/wanwu · 2,462 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add UnicomAI/wanwu --skill exa-web-search-free
Clone the repo
git clone --depth 1 https://github.com/UnicomAI/wanwu

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for exa-web-search-free

README.md
[![agentmods](https://agentmods.dev/badge/skills/unicomai/wanwu/exa-web-search-free/github.svg)](https://agentmods.dev/skills/unicomai/wanwu/exa-web-search-free)
Your own site
<a href="https://agentmods.dev/skills/unicomai/wanwu/exa-web-search-free"><img src="https://agentmods.dev/badge/skills/unicomai/wanwu/exa-web-search-free/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for exa-web-search-free

Your own site · 80×15
<a href="https://agentmods.dev/skills/unicomai/wanwu/exa-web-search-free"><img src="https://agentmods.dev/badge/skills/unicomai/wanwu/exa-web-search-free.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 687 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 68
    Skill grants unrestricted tool access without appropriate constraints. An agent with unfettered tool access can perform arbitrary actions including file modification, network requests, and code execution.
    Fix: Restrict tool access to only the tools required for the skill's stated purpose. Use an explicit allowlist rather than granting blanket access.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00042 $0.00687
Opus 5 $0.00021 $0.00344
Sonnet 5 $0.00008 $0.00137
Haiku 4.5 $0.00004 $0.00069

Measured 11d ago against content hash 878e35f9c0a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade B, and why

exa-web-search-free scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Unrestricted tool accessmediumExcessive agency

A wildcard tool grant or "run any command" leaves no least-privilege boundary at all.

**Enable all tools:**
Origin

Copies of this mod

3 near-identical copies found in the catalogue:

configs/microservice/bff-service/configs/agent-skills/clawhub/exa-web-search-free/SKILL.md · 87 lines

How it starts

The opening of the file, as written. The whole thing — 87 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Exa Web Search (Free)

Neural search for web, code, and company research. No API key required.

Setup

Verify mcporter is configured:

mcporter list exa

If not listed:

mcporter config add exa https://mcp.exa.ai/mcp

Core Tools

web_search_exa

Search web for current info, news, or facts.

mcporter call 'exa.web_search_exa(query: "latest AI news 2026", numResults: 5)'

Parameters:

  • query - Search query
  • numResults (optional, default: 8)
  • type (optional) - "auto", "fast", or "deep"

get_code_context_exa

Find code examples and docs from GitHub, Stack Overflow.

mcporter call 'exa.get_code_context_exa(query: "React hooks examples", tokensNum: 3000)'

Parameters:

  • query - Code/API search query
  • tokensNum (optional, default: 5000) - Range: 1000-50000

company_research_exa

Research companies for business info and news.

mcporter call 'exa.company_research_exa(companyName: "Anthropic", numResults: 3)'

Parameters:

  • companyName - Company name
  • numResults (optional, default: 5)

Advanced Tools (Optional)

Six additional tools available by updating config URL:

  • web_search_advanced_exa - Domain/date filters
  • deep_search_exa - Query expansion
  • crawling_exa - Full page extraction
  • people_search_exa - Professional profiles
  • deep_researcher_start/check - AI research agent

Enable all tools:

mcporter config add exa-full "https://mcp.exa.ai/mcp?tools=web_search_exa,web_search_advanced_exa,get_code_context_exa,deep_search_exa,crawling_exa,company_research_exa,people_search_exa,deep_researcher_start,deep_researcher_check"

# Then use:
mcporter call 'exa-full.deep_search_exa(query: "AI safety research")'

Tips

  • Web: Use type: "fast" for quick lookup, "deep" for thorough research
  • Code: Lower tokensNum (1000-2000) for focused, higher (5000+) for comprehensive
  • See examples.md for more patterns

Resources

Read the full file on GitHub · 87 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 87 lines · 42 tokens per session scan B 878e35f9c0a0

Subscribe to this mod's changes

exa-web-search-free is a skill published in the GitHub repository UnicomAI/wanwu (2,462 stars, last pushed 6d ago), licensed Apache-2.0. It adds 42 tokens to every session and 687 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it B with 1 finding (unrestricted tool access). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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