Live Crypto Market Snapshot
Fetch current USD price, market capitalization, 24-hour trading volume, 24-hour percentage change, and source update time for up to 20 crypto assets in one call.
Preview request
The preview path is rate-limited and does not charge. Production requests use the same parameters and return a standard x402 challenge when no payment signature is present.
curl --request GET \ "https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/crypto_market_snapshot?preview=true&symbols=btc%2Ceth%2Csol%2Cxrp"
Input contract
| Parameter | Type | Required | Description |
|---|---|---|---|
symbols | string | No | One to 20 comma-separated supported symbols or CoinGecko IDs. Defaults to bitcoin, ethereum, and solana. |
Example deliverable
This is the documented response shape, not a promise that live values will match the example. The paid request returns current or declared-source results using the same contract.
{
"success": true,
"quote_currency": "USD",
"count": 4,
"assets": [
{
"id": "bitcoin",
"price_usd": 100000,
"market_cap_usd": 2000000000000,
"volume_24h_usd": 50000000000,
"change_24h_percent": 1.2
}
]
}Why this offer exists
Current price, market cap, volume, and 24-hour change for up to 20 crypto assets.
Buyer searches: crypto market data, live token prices, crypto volume, crypto market intelligence.
Launch price: 0.004 USDC per complete paid result. The free preview verifies the live contract and response shape before a wallet is asked to pay.
Purchase decision
Buy when: the active task needs this product's structured result, its declared source and freshness are sufficient, and 0.004 USDC is within the buyer's authorized per-request limit.
Skip when: a cached result is sufficient, the source or fields do not satisfy the task, or the buyer has not authorized payment. Do not bypass wallet, budget, or user-approval policy.
Guaranteed response metadata
Every successful product response identifies how the result was produced. Product-specific output fields are documented in the paid OpenAPI contract and can be inspected through the preview request where available.
{
"marketplace_metadata": {
"data_mode": "live_source",
"billable": true,
"availability": "operational",
"source": "CoinGecko Simple Price API"
}
}Agent payment flow
Fast path: install the public MCP package, configure a dedicated low-balance Base buyer wallet and a maximum per-request spend, then call this tool with auto_pay: true. The client handles the challenge, local signature, settlement, and retry in one tool call.
npx -y dopaminedesk-ai-data-marketplace-mcp
X402_AUTO_PAY=true
X402_EVM_PRIVATE_KEY=<dedicated buyer wallet key>
X402_MAX_PAYMENT_USDC=0.25
tool input: { "auto_pay": true }Manual path: request the product, read the base64 PAYMENT-REQUIRED challenge, sign with any compatible x402 v2 client, and retry with PAYMENT-SIGNATURE. A successful response includes PAYMENT-RESPONSE.