Agent Data API — MCP Server
MCP server exposing 18 pay-per-call data tools + 1 free tool for AI agents:
crypto & DeFi market data (cross-exchange funding rates, market-regime
signal, TVL, yields, stablecoin pegs), web extraction (clean text,
Markdown, metadata), PDF-to-text, RSS/Atom parsing, FX rates,
crypto prices, weather, DNS and email validation.
Payments use the x402 protocol — USDC on Base, per-call,
no API keys, no accounts, no subscriptions.
Quick start (Claude Desktop / Cursor / any MCP client)
{
"mcpServers": {
"agent-data-api": {
"command": "npx",
"args": ["-y", "agent-data-api-mcp"]
}
}
}
Then ask your agent to try the free tool:
"Use crypto_fear_greed to check crypto market sentiment."
Tools
crypto_fear_greed | FREE |
crypto_funding_rates — Binance/Bybit/OKX perp funding + crowding bias | $0.01 |
crypto_market_regime — trend/chop/vol regime from 200×4h candles | $0.02 |
defi_tvl — protocol / chain / top-20 TVL | $0.005 |
defi_yields — top pools, min $1M TVL, APY breakdown | $0.01 |
defi_stablecoins — top 20 with live peg deviation | $0.005 |
web_extract / web_markdown / web_metadata | $0.005–0.01 |
pdf_to_text | $0.005 |
parse_feed | $0.005 |
fx_rates / crypto_prices / weather | $0.005 |
dns_lookup / validate_email | $0.005 |
za_public_holidays / za_tax_tables | $0.005–0.01 |
How payment works
The free tool returns data immediately. Paid tools call the API; if payment is
required, the tool returns the machine-readable x402 payment requirements
(price, network eip155:8453, asset USDC, pay-to address) so an x402-capable
client or wallet-equipped agent can settle and retry. This MCP server holds no
keys and signs nothing.
Config
AGENT_DATA_API_URL | the hosted API | Point at a different deployment |
Market-data responses are informational only — not financial advice.