47620 Base + Polygon Data API

Official18 tools

by fito311 · JavaScript

Pay-per-call Base and Polygon onchain data over x402 for AI agents.

xyz.47620/evm-data MCP Server

The xyz.47620/evm-data MCP server provides pay-per-call Base and Polygon onchain data over x402 for AI agents. The server is described as delivering EVM data sources usable by agent applications, with service access framed around per-request calls.

🛠️ Key Features

Base onchain data access
Polygon onchain data access
Pay-per-call request model
x402 transport/integration for AI agents

🚀 Use Cases

Supplying Base and Polygon EVM data to AI agents
Request-scoped retrieval of onchain information

⚡ Developer Benefits

Clear separation of data sources: Base and Polygon
Aligns with AI-agent workflows that use pay-per-call fetching

⚠️ Limitations

Only Base and Polygon onchain data is explicitly described
No additional tools, authentication details, or configuration options are provided

Captured live from the server via tools/list.

base_health

base network health: chain id, latest block, gas price, native token USD price. Cheapest call. Pay-per-call ($0.002 USDC).

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

base_block

Header + summary for a base block by number (or "latest"): hash, timestamp, tx count, gas used, base fee. Pay-per-call ($0.005 USDC).

Parameters1

number

string

optional

Block number or "latest"

Raw schema

{
  "type": "object",
  "properties": {
    "number": {
      "type": "string",
      "description": "Block number or \"latest\""
    }
  },
  "additionalProperties": false
}

base_balance

Native balance + live USD value for any base address. Pay-per-call ($0.005 USDC).

Parameters1

address

string

required

base address (0x...)

Raw schema

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "base address (0x...)"
    }
  },
  "required": [
    "address"
  ],
  "additionalProperties": false
}

base_stables

USDC/USDT/DAI balances for a base address in one call. Pay-per-call ($0.01 USDC).

Parameters1

address

string

required

base address (0x...)

Raw schema

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "base address (0x...)"
    }
  },
  "required": [
    "address"
  ],
  "additionalProperties": false
}

base_token

Live price, liquidity, 24h volume + DEX pairs for any base ERC-20 token (plus onchain name/symbol/decimals). Pay-per-call ($0.02 USDC).

Parameters1

token

string

required

base ERC-20 token address

Raw schema

{
  "type": "object",
  "properties": {
    "token": {
      "type": "string",
      "description": "base ERC-20 token address"
    }
  },
  "required": [
    "token"
  ],
  "additionalProperties": false
}

base_tx

Status (success/reverted), block, gas + transfer summary for a base tx hash. Pay-per-call ($0.01 USDC).

Parameters1

hash

string

required

Transaction hash (0x...)

Raw schema

{
  "type": "object",
  "properties": {
    "hash": {
      "type": "string",
      "description": "Transaction hash (0x...)"
    }
  },
  "required": [
    "hash"
  ],
  "additionalProperties": false
}

base_contract

Whether a base address is a contract, bytecode size + ERC-20 metadata. Pay-per-call ($0.01 USDC).

Parameters1

address

string

required

base address (0x...)

Raw schema

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "base address (0x...)"
    }
  },
  "required": [
    "address"
  ],
  "additionalProperties": false
}

base_gas

Current base gas price (gwei + wei) + estimated cost of a 21k native transfer. Pay-per-call ($0.005 USDC).

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

base_trending

Trending base DEX pairs by 24h volume (DexScreener boosts). Fresh feed for agents. Pay-per-call ($0.02 USDC).

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

polygon_health

polygon network health: chain id, latest block, gas price, native token USD price. Cheapest call. Pay-per-call ($0.002 USDC).

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

polygon_block

Header + summary for a polygon block by number (or "latest"): hash, timestamp, tx count, gas used, base fee. Pay-per-call ($0.005 USDC).

Parameters1

number

string

optional

Block number or "latest"

Raw schema

{
  "type": "object",
  "properties": {
    "number": {
      "type": "string",
      "description": "Block number or \"latest\""
    }
  },
  "additionalProperties": false
}

polygon_balance

Native balance + live USD value for any polygon address. Pay-per-call ($0.005 USDC).

Parameters1

address

string

required

polygon address (0x...)

Raw schema

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "polygon address (0x...)"
    }
  },
  "required": [
    "address"
  ],
  "additionalProperties": false
}

polygon_stables

USDC/USDT/DAI balances for a polygon address in one call. Pay-per-call ($0.01 USDC).

Parameters1

address

string

required

polygon address (0x...)

Raw schema

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "polygon address (0x...)"
    }
  },
  "required": [
    "address"
  ],
  "additionalProperties": false
}

polygon_token

Live price, liquidity, 24h volume + DEX pairs for any polygon ERC-20 token (plus onchain name/symbol/decimals). Pay-per-call ($0.02 USDC).

Parameters1

token

string

required

polygon ERC-20 token address

Raw schema

{
  "type": "object",
  "properties": {
    "token": {
      "type": "string",
      "description": "polygon ERC-20 token address"
    }
  },
  "required": [
    "token"
  ],
  "additionalProperties": false
}

polygon_tx

Status (success/reverted), block, gas + transfer summary for a polygon tx hash. Pay-per-call ($0.01 USDC).

Parameters1

hash

string

required

Transaction hash (0x...)

Raw schema

{
  "type": "object",
  "properties": {
    "hash": {
      "type": "string",
      "description": "Transaction hash (0x...)"
    }
  },
  "required": [
    "hash"
  ],
  "additionalProperties": false
}

polygon_contract

Whether a polygon address is a contract, bytecode size + ERC-20 metadata. Pay-per-call ($0.01 USDC).

Parameters1

address

string

required

polygon address (0x...)

Raw schema

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "polygon address (0x...)"
    }
  },
  "required": [
    "address"
  ],
  "additionalProperties": false
}

polygon_gas

Current polygon gas price (gwei + wei) + estimated cost of a 21k native transfer. Pay-per-call ($0.005 USDC).

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

polygon_trending

Trending polygon DEX pairs by 24h volume (DexScreener boosts). Fresh feed for agents. Pay-per-call ($0.02 USDC).

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

README.md3 KBView on GitHub

47620 Base + Polygon Data API — MCP server

Pay-per-call Base and Polygon onchain data for AI agents. No signup, no API key — every call is an x402 (HTTP 402) request settled in USDC, non-custodially. Pay on Solana, Base or Polygon — whichever your wallet supports.

Tools (18)

Per chain (base_*, polygon_*):

Tool	Price	What it returns
`{chain}_health`	$0.002	chain id, latest block, gas price, native USD price
`{chain}_block`	$0.005	block header + summary (hash, txs, gas, base fee)
`{chain}_balance`	$0.005	native balance + live USD value
`{chain}_stables`	$0.01	USDC / USDT / DAI balances in one call
`{chain}_token`	$0.02	price, liquidity, 24h volume, DEX pairs, ERC-20 metadata
`{chain}_tx`	$0.01	status, block, gas, from/to/value
`{chain}_contract`	$0.01	is-contract, bytecode size, ERC-20 metadata
`{chain}_gas`	$0.005	gas price (gwei/wei) + 21k transfer cost
`{chain}_trending`	$0.02	trending DEX pairs by 24h volume

Use it (remote — no install)

Connect any MCP client to:

code

https://47620.xyz/mcp/evm

Streamable HTTP transport. Tool calls return the x402 challenge; an x402-capable runtime completes the USDC payment and retries. Works with Claude, Cursor, OpenClaw, Windsurf and any MCP-capable agent.

Use it (local, stdio)

bash

npx -y 47620-evm-mcp

Claude Desktop / Cursor config:

json

{
  "mcpServers": {
    "47620-evm-data": {
      "command": "npx",
      "args": ["-y", "47620-evm-mcp"],
      "env": { "X402_PAY_URL": "https://your-pay-broker.example/pay" }
    }
  }
}

X402_PAY_URL (optional): an HTTP pay broker that, given {url, challenge}, returns {header} — a base64 PAYMENT-SIGNATURE. Without it, tools return the 402 challenge and payment instructions.

HTTP API

Method	URL
GET	`https://47620.xyz/x/base`
GET	`https://47620.xyz/x/polygon`
GET	`https://47620.xyz/x/base/{health,gas,trending}`
GET	`https://47620.xyz/x/base/{block/:n,balance/:a,stables/:a,token/:t,tx/:h,contract/:a}`
GET	`https://47620.xyz/x/polygon/...`

Facilitated mirrors under /x/base-fac/* and /x/polygon-fac/* are used by the remote MCP for marketplace discovery.

Payment

Every endpoint advertises accepts[] on all three chains:

Solana — USDC (SPL)
Base (eip155:8453) — USDC
Polygon (eip155:137) — USDC

1% platform fee is split at settlement; 99% goes to the merchant. Non-custodial.

Install

Tools (18)

base_healthbase_blockbase_balancebase_stablesbase_tokenbase_txbase_contractbase_gas

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "evm-data": {
      "command": "npx",
      "args": [
        "-y",
        "47620-evm-mcp@1.0.0"
      ]
    }
  }
}

47620 Base + Polygon Data API

xyz.47620/evm-data MCP Server

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

base_health

base_block

base_balance

base_stables

base_token

base_tx

base_contract

base_gas

base_trending

polygon_health

polygon_block

polygon_balance

polygon_stables

polygon_token

polygon_tx

polygon_contract

polygon_gas

polygon_trending

47620 Base + Polygon Data API — MCP server

Tools (18)

Use it (remote — no install)

Use it (local, stdio)

HTTP API

Payment

Links

Install

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