agentutility(7)$ man token-volatility
/token-volatility
PRICE / CALL
$0.005
USDC · base mainnet · scheme: exact
METHOD
POST
CLUSTER
edgemarketCATEGORY
uncategorized
STATUS
● live
NAME
token-volatility — computes historical volatility for any coingecko-listed token: log-return standard deviation over the last n days (default 30), annualize…
SYNOPSIS
POST https://x402.agentutility.ai/token-volatility
Content-Type: application/json
X-PAYMENT: <signed-transferWithAuthorization>
{ ... }↳ first call →
402 Payment Required. Sign USDCtransferWithAuthorization, retry with theX-PAYMENT header.DESCRIPTION
Computes historical volatility for any CoinGecko-listed token: log-return standard deviation over the last N days (default 30), annualized by sqrt(365). Returns daily and annualized volatility as percent, count of return observations, and first and last close prices. Backed by CoinGecko's free public market_chart endpoint. Use it as an annualized vol calculator, standard-deviation-of-returns tool, or crypto vol calculator.
INPUT — request schema
| property | type | description | req? |
|---|---|---|---|
| coingecko_id | string | CoinGecko coin id (e.g. 'ethereum', 'bitcoin', 'solana'). Lower-case slug, not the symbol. | required |
| days | number | Lookback window in days. Range [7, 365]. Default 30. | optional |
OUTPUT — response shape
| field | type | description |
|---|---|---|
| coingecko_id | string | CoinGecko ID of the token whose volatility was computed (e.g. bitcoin, ethereum). |
| days | string | Lookback window in days used for the return series (default 30). |
| returns_count | string | Number of daily log-return observations included in the standard deviation calculation. |
| daily_volatility_pct | string | Standard deviation of daily log returns over the window, expressed as a percent. |
| annualized_volatility_pct | string | Daily volatility scaled by sqrt(365), expressed as an annualized percent. |
| first_price_usd | string | Closing USD price at the start of the lookback window. |
| last_price_usd | string | Closing USD price at the end of the lookback window. |
| source | string | Upstream data provider for the price series (CoinGecko market_chart). |
EXAMPLES — two ways to call
EXAMPLE 1 · curl
curl -X POST https://x402.agentutility.ai/token-volatility \
-H 'Content-Type: application/json' \
-d '{ }'first response =
402 Payment Required with payment requirements; sign + retry with X-PAYMENT.EXAMPLE 2 · mcp
# Install the MCP package for this endpoint's cluster npx -y @agentutility/mcp-<cluster> # Required: EVM private key with USDC on Base export X402_PRIVATE_KEY=0x... # Then call the token-volatility tool from your MCP-aware agent.
MCP server handles payment automatically — your coding agent just calls the tool by name.
METADATA
- tags
- edge-marketcryptovolatilityhistorical-volatilityannualized-volatilitycoingeckoprice-analyticstoken-volatility
- methods
- POST
- cluster
- edgemarket
- price
- $0.005 USDC per call
ADJACENT — other endpoints in edgemarket
| endpoint | description | price |
|---|---|---|
| agent-card-resolve | Resolves an ERC-8004 agentId to its on-chain owner, agentURI, and agent card JSON. | $0.005 |
| arbitrage-spread | Finds the cross-exchange arbitrage spread for any CoinGecko-listed coin. | $0.005 |
| basename-resolve | Resolves Coinbase Basenames (.base.eth) to Ethereum addresses and back, reading the Base mainnet L2 Resolver on-chain (no gas, no wallet). | $0.005 |
| cid-fetch | Fetches the content behind an IPFS CID and optional path through public gateways, returning text, JSON, or base64 with a 5 MB cap. | $0.005 |
| current-balance | Reads a wallet's current ERC-20 token balance with a read-only balanceOf call on Base, Ethereum, Arbitrum, Optimism, Polygon, BSC, or Ava… | $0.005 |
| defi-yield-pools | Filters and ranks thousands of DeFi yield-bearing pools by APY across every chain DeFiLlama tracks. | $0.005 |
| erc20-balance | Reads an ERC-20 token balance on-chain across any supported EVM chain, including Base, Ethereum, Arbitrum, Optimism, and Polygon. | $0.005 |
| erc20-metadata | Reads ERC-20 token metadata: name(), symbol(), decimals(), and totalSupply() in parallel via public RPC on Base, Ethereum, Arbitrum, Opti… | $0.005 |
SEE ALSO