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Arkham Altcoin Index
x402
Arkham Altcoin Index is a paid API for AI agents from api.arkm.com, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-14).
Returns the current Arkham altcoin market index value as a numeric score
Price / call$0.2
Success—
StatusUnknown
How this service works
Get Arkham Altcoin Index. $0.20 per call.
Output
Returns a JSON object containing a single numeric field `altcoinIndex` (e.g. {"altcoinIndex": 28}), representing the current Arkham altcoin market index value on a numeric scale.
Example use cases
Real-time altcoin market monitoring
“Can you check the Arkham altcoin index for me right now? I want to know the current score to see how the broader altcoin market is trending.”
Trading signal dashboard integration
“Pull the current Arkham altcoin index and let me know the number — I use it as one of my inputs when deciding whether to increase my altcoin exposure.”
Crypto market briefing
“Give me a quick summary of altcoin market conditions using the Arkham altcoin index — what's the current reading?”
Technical details
Endpoint
POSThttps://api.arkm.com/x402/marketdata/altcoin-indexWhen to prefer
Choose this endpoint when you need a single, authoritative numeric index reflecting overall altcoin market conditions as measured by Arkham Intelligence. Ideal for real-time dashboards, trading signal pipelines, or market briefing agents that want a concise altcoin sentiment or momentum score without processing raw price feeds. Prefer this over general crypto price APIs when the Arkham-specific index methodology is desired.
Side effects
- Payment failure if x402 USDC balance is insufficient — returns 402 Payment Required
- Authentication failure if API key is invalid or missing — returns 401 Unauthorized
- Service unavailability if Arkham data pipeline is down — returns 5xx error
- Rate limiting if too many requests are made in a short period — returns 429 Too Many Requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"altcoinIndex": 28
}
}Tags
x402
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