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agentkit-data-mcp

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agentkit-data-mcp

MCP server for AgentKit Data, six pay-per-call data tools. Each call is paid in USDC on Base over x402. There's no signup and no API key.

Tool

What it returns

Price

web_to_markdown

Clean Markdown of a public page's main content plus title, byline, language, publish date and word count

$0.005

solana_token_risk

SPL / Token-2022 safety check: authorities, risky extensions, holder concentration, liquidity, 0-100 score

$0.02

solana_wallet

SOL plus every SPL holding with USD values and total

$0.01

evm_token_risk

Base/Ethereum ERC-20 check: owner, proxy, mint/blacklist/pause/fee functions, liquidity, buys vs sells, score

$0.02

evm_balances

ETH plus major tokens and up to 20 extra ERC-20s with USD values

$0.003

spot_prices

USD spot prices for up to 50 crypto and fiat tickers

$0.001

Before anything is signed, the server reads the live price from the API's 402 quote. It refuses any call that costs more than AGENTKIT_MAX_USD (default $0.05).

Setup

{
  "mcpServers": {
    "agentkit-data": {
      "command": "npx",
      "args": ["-y", "agentkit-data-mcp"],
      "env": { "AGENTKIT_PAYER_KEY": "0x<base wallet key holding a little USDC>", "AGENTKIT_MAX_USD": "0.05" }
    }
  }
}

Use a dedicated hot wallet with only a few dollars of USDC on Base. Gas isn't needed, because payments are EIP-3009 signatures that the facilitator settles.

Env var

Default

Purpose

AGENTKIT_PAYER_KEY

(required for paid calls)

Base wallet private key used to sign payments

AGENTKIT_MAX_USD

0.05

Hard per-call spend cap

AGENTKIT_BASE_URL

https://x402-apis-production.up.railway.app

API host

Related MCP server: agentforge

HTTP API

You can also call the endpoints directly with any x402 client. See /.well-known/x402, /openapi.json and /llms.txt on the API host.

Tests

npm test covers 8 tests: input validation, the cap being enforced before signing, and the MCP stdio tool listing.

MIT licensed.

Docker

docker build -t agentkit-data-mcp .
docker run -i --rm -e AGENTKIT_PAYER_KEY=0x... -e AGENTKIT_MAX_USD=0.05 agentkit-data-mcp

Tools are listed without a key; the key is only needed for paid calls.

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityMaintained
ResponsivenessNo issues

Resources

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