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Fear and Greed Index

Name: Fear and Greed Index
Author: arielcaba-dev

by AC Crypto · GitHub ↗ · v1.0.0

cross-platform ✓ Security Clean

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Install in OpenClaw

/install fear-and-greed-index

Description

Access the Alternative.me Crypto Fear & Greed Index. Use this tool to anchor your baseline market sentiment analysis, determining whether the broader retail...

README (SKILL.md)

Crypto Fear & Greed Index API

Access the global crypto market sentiment baseline using the free Alternative.me API.

API Endpoint

Base URL: https://api.alternative.me/fng/

The API requires no authentication or API keys.

Get Current Sentiment

Fetch the latest daily Fear & Greed metric (0-100 score + classification label):

curl -s "https://api.alternative.me/fng/?limit=1"

Returns a JSON structure containing:

value: The 0-100 numerical score.
value_classification: The textual label (e.g. "Extreme Fear", "Fear", "Greed", "Extreme Greed").
timestamp: Unix epoch of the data point.

Common Use Cases

Sentiment Baseline Anchoring

When conducting qualitative sentiment analysis on news headlines or on-chain flows, first fetch the Fear & Greed index to anchor your assumptions about retail psychology.

If value \x3C 25 (Extreme Fear): The market is highly sensitive to bearish catalysts. Price may be artificially depressed.
If value > 75 (Extreme Greed): The market is euphoric and ignoring risk. High danger of sudden liquidations or corrections.

Usage Guidance

This skill is low-risk: it only queries a public API and does not ask for secrets or install software. Before installing, confirm you trust the skill owner (source metadata is unknown) and that your agent environment permits outbound network calls to that API. Also consider rate limits and caching so repeated automated calls don't hit the public endpoint excessively. If you require stricter controls, restrict the agent's network access or run the query manually.

Capability Analysis

Type: OpenClaw Skill Name: fear-and-greed-index Version: 1.0.0 The skill bundle is designed to fetch the Crypto Fear & Greed Index from `https://api.alternative.me/fng/` using a standard `curl` command, as described in `SKILL.md`. There is no evidence of malicious intent, data exfiltration, unauthorized execution, persistence mechanisms, or prompt injection attempts against the agent. The instructions in `SKILL.md` are purely descriptive and guide the agent on how to interpret and use the fetched public data, aligning perfectly with the stated purpose.

Capability Assessment

✓ Purpose & Capability

The name/description (fetching the Fear & Greed Index) matches the instructions, which simply call the public Alternative.me API. No unrelated capabilities or requirements are declared.

✓ Instruction Scope

SKILL.md instructs a single network fetch (curl to https://api.alternative.me/fng/?limit=1) and explains how to interpret the returned JSON. It does not direct reading local files, accessing environment variables, or transmitting user data to other endpoints.

✓ Install Mechanism

No install spec or code files are present (instruction-only). Nothing is downloaded or written to disk by the skill itself.

✓ Credentials

No environment variables, credentials, or config paths are requested. This is proportional to the stated purpose (public API access requires no auth).

✓ Persistence & Privilege

always is false and there are no indications the skill requests elevated or persistent privileges. Autonomous invocation of the skill is allowed by default, which is expected for skills of this type.

How to Use

Make sure OpenClaw is installed (local or Docker)
Run the install command in chat: /install fear-and-greed-index
After installation, invoke the skill by name or use /fear-and-greed-index
Provide required inputs per the skill's parameter spec and get structured output

Version History

v1.0.0

- Initial release of the fear-and-greed skill. - Allows easy access to the Alternative.me Crypto Fear & Greed Index. - Provides up-to-date sentiment metrics (score and classification) via a public API. - Designed to help anchor baseline retail market sentiment in broader analysis. - No authentication or API keys required.

Metadata

Slug fear-and-greed-index

Version 1.0.0

License —

All-time Installs 1

Active Installs 1

Total Versions 1

Frequently Asked Questions

What is Fear and Greed Index?

Access the Alternative.me Crypto Fear & Greed Index. Use this tool to anchor your baseline market sentiment analysis, determining whether the broader retail... It is an AI Agent Skill for Claude Code / OpenClaw, with 642 downloads so far.

How do I install Fear and Greed Index?

Run "/install fear-and-greed-index" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is Fear and Greed Index free?

Yes, Fear and Greed Index is completely free (open-source). You can download, install and use it at no cost.

Which platforms does Fear and Greed Index support?

Fear and Greed Index is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created Fear and Greed Index?

It is built and maintained by AC Crypto (@arielcaba-dev); the current version is v1.0.0.

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