AgentData MCP Server

Model Context Protocol server exposing the live AgentData crypto catalogue to Claude Desktop, Cursor and other MCP clients. Payments use x402 and USDC on Base Mainnet.

What this is

A thin MCP wrapper around the AgentData API, a production x402 service on Base Mainnet. Free tools work through the remote MCP immediately. Paid tools accept a caller-signed payment payload or auto-pay through the local stdio package.

Two modes

Proxy mode (default) — No wallet needed. Free tools return data; paid tools return canonical x402 requirements that a capable client can sign and submit.

Auto-pay mode — Set AGENTDATA_BUYER_PRIVATE_KEY to a wallet funded with USDC on Base. The package signs the exact x402 v2 requirement and retries automatically. It defaults to a 0.05 USDC per-call cap; the facilitator covers settlement gas.

Use a dedicated, low-balance buyer wallet. Never place a treasury or primary personal wallet key in an MCP configuration.

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 (free tools or externally signed payments)

config.json

{
  "mcpServers": {
    "agentdata": {
      "url": "https://agentdata-api.com/mcp"
    }
  }
}

Option 2: Local stdio with auto-pay

config.json

{
  "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

bash

git clone https://github.com/speteai/agentdata-mcp.git
cd agentdata-mcp
npm install
node index.js

Available Tools

Generated from the package catalogue by npm run sync-docs. npm run check-docs and the live catalogue comparison both run before publication, so tool counts and prices cannot drift silently.

Tool	Price	What it gives you
`get_overnight_risk_brief`	$0.015	Decision-ready overnight risk brief for $0.015 USDC: DEX-vs-CEX spreads, liquidation zones, funding predictions, sentiment, stablecoin health, and recorded changes since this wallet last called it. Same total price as the five parts, one settlement instead of five.
`try_crypto_prices`	free	FREE SAMPLE, no payment: real-time prices for BTC, ETH, SOL, BNB, XRP. Rate-limited to 30 requests/min. get_crypto_prices ($0.002 USDC) is the same data without the limit.
`try_sentiment`	free	FREE SAMPLE, no payment: current market sentiment. Rate-limited to 30 requests/min. get_sentiment is the same data without the limit.
`try_funding_rates`	free	FREE SAMPLE, no payment: perpetual funding rates. Rate-limited to 30 requests/min. get_funding_rates ($0.002 USDC) is the same data without the limit.
`get_signal_history_7d`	$0.005	The last 7 days of a recorded signal, not just its current value. Costs $0.005 USDC. Every recorded day is anchored on Base — verify at /anchors?verify=YYYY-MM-DD.
`get_signal_history_30d`	$0.012	The last 30 days of a recorded signal. Costs $0.012 USDC. Anchored on Base like every recorded day.
`get_signal_history_full`	$0.020	The complete recorded series for a signal. Costs $0.020 USDC. Anchored on Base like every recorded day.
`get_arbitrage_spread_history`	$0.015	30 days of hourly cross-exchange spreads (MEXC/Binance/Bybit/OKX). Costs $0.015 USDC. Every venue publishes its own prices; nobody archives the spread between them.
`get_funding_accuracy`	$0.015	Track record of our funding predictions scored against the rates observed afterwards, over 30 days. Costs $0.015 USDC. Read it before paying for get_funding_predictions.
`get_market_pulse`	$0.018	Bundle for $0.018 USDC: 8 signals in one call and one settlement — sentiment, liquidation levels, volatility, correlation, funding predictions, positioning, supply, stablecoin health. Bought separately they cost $0.022 and eight settlements.
`get_funding_predictions`	$0.003	Predicted next funding rate for BTC/ETH/SOL on MEXC, with time to settlement. Costs $0.003 USDC. Check get_signal_calibration first — this signal is scored openly and does not yet beat a naive baseline on mean error.
`get_positioning`	$0.005	Long/short positioning ratios across venues. Costs $0.005 USDC.
`get_etf_flows`	$0.005	Daily spot BTC/ETH ETF net flows in millions USD, with 30 days of history. Costs $0.005 USDC.
`get_macro_onchain`	$0.003	Macro on-chain indicators. Costs $0.003 USDC.
`get_supply`	$0.003	Circulating, total and max supply for 18 coins, with the circulating-to-total ratio. A ratio below 1 under active emission is supply overhang. Costs $0.003 USDC.
`get_changes_since_last_call`	$0.001	Only what changed for a signal since THIS wallet last paid for it. Costs $0.001 USDC — cheaper than any full payload. The server keeps the cursor, keyed to your wallet, so you never re-download or re-diff data you already hold. First call returns the last 24h.
`watch_condition`	$0.010	Register a standing condition and let the always-on server watch it for you. Costs $0.010 USDC, lifetime up to 168h. Then poll watch_status for free instead of paying for repeated data calls.
`get_signal_calibration`	free	FREE. How often the signals here actually turned out right, scored against a naive baseline. Every claim is recorded before the outcome exists and scored afterwards from the recorded series. Read this before trusting any signal — including to see which ones do not yet justify their price.
`get_crypto_prices`	$0.002	Get real-time prices for BTC, ETH, SOL, BNB, XRP. Costs $0.002 USDC.
`get_funding_rates`	$0.002	Get perpetual futures funding rates for BTC/ETH/SOL with long/short signals. Costs $0.002 USDC.
`get_market_overview`	$0.003	Get full market overview with sentiment bias, arbitrage detection, funding yield. Costs $0.003 USDC.
`get_volatility`	$0.002	Get 24h volatility, range, and annualized volatility for BTC/ETH/SOL. Costs $0.002 USDC.
`get_liquidation_levels`	$0.003	Get estimated liquidation zones by leverage (5x/10x/20x) for BTC/ETH/SOL. Costs $0.003 USDC.
`get_correlation`	$0.002	Get 30-day price correlation matrix (ETH/BTC, SOL/BTC, SOL/ETH). Costs $0.002 USDC.
`get_gas_prices`	$0.002	Get current gas prices for Base, Ethereum, Solana with USD cost estimation. Costs $0.002 USDC.
`get_base_activity`	$0.003	Get Base Mainnet network activity: TPS, block stats, gas utilization. Costs $0.003 USDC.
`get_defi_yields`	$0.003	Get top DeFi yield opportunities from Aave, Compound, Morpho, Pendle (via DefiLlama). Costs $0.003 USDC.
`get_arbitrage_opportunities`	$0.005	Get cross-exchange arbitrage opportunities between MEXC, Binance, Bybit, OKX. Costs $0.005 USDC.
`get_dex_vs_cex`	$0.005	Get DEX aggregated prices vs CEX prices with spread analysis for BTC/ETH/SOL. Costs $0.005 USDC.
`get_technical_indicators`	$0.003	Get RSI, MACD, Bollinger Bands, ATR for a symbol/interval. Costs $0.003 USDC.
`get_support_resistance`	$0.005	Get support & resistance levels via fractal analysis on 4h timeframe. Costs $0.005 USDC.
`get_sentiment`	$0.002	Get composite market sentiment: Fear & Greed Index + Funding-based + composite score. Costs $0.002 USDC.
`get_stablecoin_health`	$0.002	Get stablecoin peg monitoring (USDC, DAI live depeg check) + top 10 stablecoins by market cap. Costs $0.002 USDC.
`get_historical`	$0.010	Get historical OHLCV candles for backtesting. Costs $0.010 USDC.

The readiness gate withholds history tools until their own record is deep enough to justify charging. Run npm run check-catalogue before publishing to compare this package with the live service.

Environment Variables

Variable	Default	Description
`AGENTDATA_BUYER_PRIVATE_KEY`	—	Wallet for auto-pay (optional)
`AGENTDATA_MAX_PAYMENT_USDC`	`0.05`	Hard per-call auto-pay cap
`AGENTDATA_SESSION_BUDGET_USDC`	`1.00`	Total auto-pay spend per process
`AGENTDATA_BASE_URL`	`https://agentdata-api.com`	Override API base URL

The per-call cap is not a spending limit on its own — an agent in a loop pays it on every iteration. AGENTDATA_SESSION_BUDGET_USDC is the limit that actually stops: once the process has spent it, further paid calls fail with an error instead of signing another authorization. Refused settlements cost nothing and do not count against it.

Cost Economics

get_overnight_risk_brief replaces five $0.015 calls with one $0.015 settlement. get_market_pulse bundles eight broader signals for $0.018 instead of $0.022 bought separately. The free calibration tool should be read before paying for a derived signal.

Fund your buyer wallet with $5 USDC → good for roughly 2,500 sentiment checks or 250 full-history calls.

No ETH needed on the buyer wallet. The AgentData facilitator pays settlement gas.

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.

Agentdata MCP README