PayAPI Market

Massive

Aggregate stock bars over a date range in custom time windows. Pay per request in USDC on Base, no key. The verified route returns daily OHLCV bars for a ticker and date range: open, high, low, close, volume, volume-weighted average price and trade count per bar. The host advertises 23 paid GET routes at $0.01 each, covering bars, snapshots, SMA, EMA, RSI and MACD indicators, ticker reference, news and SEC filings, listed at https://agent.massive.com/llms-full.txt. Only the bars canary is settlement-verified.

1 of 23 routes settlement-verified · $0.01 USDC/request · 23 endpoints · Finance · base network · x402 protocol

Verified routes

Other routes are unverified.

Networks: Base (settlement-verified)

Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.

url https://payapi.market/mcp

About this API

Massive is listed in the Finance category with pricing at $0.01 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-09-03. View receipt on Basescan.

Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.

This API exposes 23 endpoints. Only the verified route has been tested by PayAPI Market. Other routes are unverified.

How to call this API

Every protected route returns HTTP 402 with x402 payment requirements. An agent pays the stated USDC amount on Base and retries with the payment header. No API keys, no accounts. Browse the marketplace or list your own API.

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