Summary
Wraps the AgentData API to expose 16 crypto market data tools over MCP using x402 payments on Base Mainnet. You get real-time prices, perpetual funding rates, DeFi yields from DefiLlama, cross-exchange arbitrage spreads, technical indicators like RSI and Bollinger Bands, and historical OHLCV data. Runs in two modes: proxy mode returns payment instructions for your client to handle, or auto-pay mode uses a funded USDC wallet to sign ERC-3009 transfers automatically. Costs run around $0.001 to $0.005 per tool call. Useful when you're building trading agents or market analysis bots that need live crypto data without managing API keys or subscriptions.
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one prompt install →AgentData MCP Server
Model Context Protocol server exposing 16 crypto market data tools for Claude Desktop, Cursor, and any MCP-compatible AI client. Payments via x402 / USDC on Base Mainnet.
What this is
A thin MCP wrapper around the AgentData API — a production x402 service on Base Mainnet. Any MCP-compatible LLM can use these 33 tools with no setup beyond adding one line to your client config — four of them free, so you can try before paying.
Two modes
Proxy mode (default) — No wallet needed. When a tool is called, the server returns the x402 payment instructions so the MCP client can handle payment however it prefers.
Auto-pay mode — Set AGENTDATA_BUYER_PRIVATE_KEY to a wallet funded with USDC on Base. The server signs ERC-3009 TransferWithAuthorization automatically using viem. Payments are gasless for the buyer — the facilitator covers settlement gas.
Quick Start
Claude Desktop
Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
Option 1: Remote MCP (easiest, no install)
{
"mcpServers": {
"agentdata": {
"url": "https://agentdata-api.com/mcp"
}
}
}
Option 2: Local stdio
{
"mcpServers": {
"agentdata": {
"command": "npx",
"args": ["-y", "agentdata-mcp"],
"env": {
"AGENTDATA_BUYER_PRIVATE_KEY": "0xYourWalletKeyHere"
}
}
}
}
Restart Claude Desktop. The tools become available immediately.
Cursor
Settings → MCP → Add Server with the same config as above.
Install from source
git clone https://github.com/speteai/agentdata-mcp.git
cd agentdata-mcp
npm install
node index.js
Available Tools
Generated from the running service, not maintained by hand — the old table listed 16 tools
at prices that had drifted (get_crypto_prices was shown at $0.001 and costs $0.002).
Four tools are free, including the calibration record: read that before trusting any signal.
| Tool | Price | What it gives you |
|---|---|---|
try_crypto_prices | free | FREE — real-time prices for BTC, ETH, SOL, BNB, XRP |
try_sentiment | free | FREE — current market sentiment |
try_funding_rates | free | FREE — perpetual funding rates |
get_signal_calibration | free | FREE — How often our own signals turned out right, scored against a naive b… |
get_changes_since_last_call | $0.001 | Only what changed for a signal since THIS wallet last paid for it ($0.001 U… |
watch_condition | $0.010 | Register a standing condition and let the always-on server watch it for you… |
get_market_pulse | $0.018 | Bundle for $0.018 USDC: 8 signals in one call and one payment — sentiment, … |
get_crypto_prices | $0.002 | Real-time prices for BTC, ETH, SOL, BNB, XRP |
get_funding_rates | $0.002 | Perpetual funding rates with long/short signals |
get_funding_predictions | $0.003 | Predicted next funding rate for BTC/ETH/SOL on MEXC, with time to settlement |
get_market_overview | $0.003 | Full market overview with sentiment + arb signals |
get_volatility | $0.002 | 24h volatility for BTC/ETH/SOL |
get_liquidation_levels | $0.003 | Estimated liquidation zones by leverage 5x/10x/20x |
get_correlation | $0.002 | 30-day price correlation matrix |
get_gas_prices | $0.002 | Multi-chain gas prices Base/ETH/SOL |
get_base_activity | $0.003 | Base network TPS + block activity |
get_defi_yields | $0.003 | Top DeFi yields (Aave/Compound/Morpho/Pendle) |
get_arbitrage_opportunities | $0.005 | Cross-exchange spreads MEXC/Binance/Bybit/OKX |
get_dex_vs_cex | $0.005 | DEX vs CEX price comparison |
get_technical_indicators | $0.003 | RSI, MACD, Bollinger Bands, ATR |
get_support_resistance | $0.005 | S/R levels via fractal analysis |
get_sentiment | $0.002 | Fear & Greed + composite sentiment |
get_stablecoin_health | $0.002 | USDC/DAI depeg monitoring |
get_historical | $0.010 | Historical OHLCV candles |
get_positioning | $0.005 | Trader positioning: open interest, long/short ratios (global + top traders)… |
get_etf_flows | $0.005 | Spot BTC & ETH ETF daily net flows (institutional demand, USD millions) — l… |
get_macro_onchain | $0.003 | Macro & on-chain context: stablecoin supply, BTC/ETH dominance, market cap,… |
get_supply | $0.003 | Circulating/total/max supply + circ/total overhang ratio per major coin — s… |
get_signal_history_7d | $0.005 | Recorded hourly history of a derived signal, most recent 7 days |
get_signal_history_30d | $0.012 | Recorded hourly history of a derived signal, most recent 30 days . |
get_signal_history_full | $0.020 | Complete recorded hourly history of a derived signal . |
get_arbitrage_spread_history | $0.015 | 30 days of hourly cross-exchange spreads (MEXC/Binance/Bybit/OKX) |
get_funding_accuracy | $0.015 | Track record of our funding predictions scored against the rates observed a… |
The readiness gate withholds a tool until its own record is deep enough to be worth charging for. The last two were released on 2026-08-31; everything in the catalogue is now served.
Environment Variables
| Variable | Default | Description |
|---|---|---|
AGENTDATA_BUYER_PRIVATE_KEY | — | Wallet for auto-pay (optional) |
AGENTDATA_BASE_URL | https://agentdata-api.com | Override API base URL |
Cost Economics
For an agent querying every paid tool once: ~$0.169 USDC. The four free tools cost nothing,
and get_market_pulse bundles eight signals for $0.018 instead of $0.022 bought separately.
For common queries (prices + sentiment): ~$0.002 USDC per full context update.
Fund your buyer wallet with $5 USDC → good for ~2500 sentiment checks or ~150 full backtesting queries.
No ETH needed on the buyer wallet. The AgentData facilitator pays settlement gas.
Related
- agentdata-api — the underlying service
- elizaos-plugin-agentdata — ElizaOS plugin version
- Live service: https://agentdata-api.com
- Admin dashboard: https://agentdata-api.com/admin
Keywords
Model Context Protocol, MCP server, Claude Desktop MCP, Cursor MCP, crypto market data MCP, x402 MCP, AI agent tools, agentic payments, USDC micropayments, Base Mainnet API, DeFi data for AI, crypto tools for LLM, autonomous agent data, agent economy, DeFAI
License
MIT — see LICENSE.
Featured
Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Categories
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UpdatedApr 11, 2026
