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Nigerian Reference Data

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net.postandshare/nigerian-reference-datav0.1.0 Domain verified

Nigerian phone, bank-account and identity-number validation for AI agents. Pay-per-call in USDC.

Crypto & Web3 Legal & Government

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chain_balance

$0.001 per call. Native-token (ETH/POL) balance of an EVM address, with a USD value at the current spot price.

addressstring, required

0x-prefixed EVM address

networkstring

Chain to read (default base)

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

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Nigerian Reference Data MCP server | mcptry

Tools (11)

chain_balance

$0.001 per call. Native-token (ETH/POL) balance of an EVM address, with a USD value at the current spot price.

Argument	Type	Description
address*	string	0x-prefixed EVM address
network	string	Chain to read (default base)

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "address"
  ],
  "properties": {
    "address": {
      "type": "string",
      "description": "0x-prefixed EVM address"
    },
    "network": {
      "enum": [
        "base",
        "ethereum",
        "arbitrum",
        "polygon"
      ],
      "type": "string",
      "description": "Chain to read (default base)"
    }
  },
  "additionalProperties": false
}

chain_block

$0.001 per call. Block header by number or latest: timestamp, transaction count, gas used, base fee.

Argument	Type	Description
number	string	Block number, or "latest" (default)
network	string	Chain to read (default base)

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "number": {
      "type": "string",
      "description": "Block number, or \"latest\" (default)"
    },
    "network": {
      "enum": [
        "base",
        "ethereum",
        "arbitrum",
        "polygon"
      ],
      "type": "string",
      "description": "Chain to read (default base)"
    }
  },
  "additionalProperties": false
}

chain_block_number

$0.001 per call. The latest block number on Base, Ethereum, Arbitrum One or Polygon. Pay-per-call in USDC over x402.

Argument	Type	Description
network	string	Chain to read (default base)

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "network": {
      "enum": [
        "base",
        "ethereum",
        "arbitrum",
        "polygon"
      ],
      "type": "string",
      "description": "Chain to read (default base)"
    }
  },
  "additionalProperties": false
}

chain_gas

$0.001 per call. Current gas price on a chain plus the cost of a plain native transfer, in native token and USD.

Argument	Type	Description
network	string	Chain to read (default base)

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "network": {
      "enum": [
        "base",
        "ethereum",
        "arbitrum",
        "polygon"
      ],
      "type": "string",
      "description": "Chain to read (default base)"
    }
  },
  "additionalProperties": false
}

chain_networks

List the chains this API can read: Base, Ethereum, Arbitrum One, Polygon, with chain ids. Free — no payment required.

No arguments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}

chain_token

$0.001 per call. ERC-20 token metadata (symbol, name, decimals) and one holder's balance.

Argument	Type	Description
token*	string	0x-prefixed ERC-20 contract address
holder*	string	0x-prefixed wallet address
network	string	Chain to read (default base)

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "token",
    "holder"
  ],
  "properties": {
    "token": {
      "type": "string",
      "description": "0x-prefixed ERC-20 contract address"
    },
    "holder": {
      "type": "string",
      "description": "0x-prefixed wallet address"
    },
    "network": {
      "enum": [
        "base",
        "ethereum",
        "arbitrum",
        "polygon"
      ],
      "type": "string",
      "description": "Chain to read (default base)"
    }
  },
  "additionalProperties": false
}

chain_tx

$0.001 per call. Transaction receipt by hash: success/failed status, block, gas used, and the fee in native token and USD.

Argument	Type	Description
hash*	string	0x-prefixed transaction hash
network	string	Chain to read (default base)

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "hash"
  ],
  "properties": {
    "hash": {
      "type": "string",
      "description": "0x-prefixed transaction hash"
    },
    "network": {
      "enum": [
        "base",
        "ethereum",
        "arbitrum",
        "polygon"
      ],
      "type": "string",
      "description": "Chain to read (default base)"
    }
  },
  "additionalProperties": false
}

ng_bank_validate

$0.003 per call. Validate a 10-digit NUBAN account number against its 3-digit CBN bank code using the check-digit algorithm. Format validation only — does not confirm the account exists.

Argument	Type	Description
bank_code*	string	3-digit CBN bank code, e.g. 058 for GTBank
account_number*	string	10-digit NUBAN account number

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "bank_code",
    "account_number"
  ],
  "properties": {
    "bank_code": {
      "type": "string",
      "description": "3-digit CBN bank code, e.g. 058 for GTBank"
    },
    "account_number": {
      "type": "string",
      "description": "10-digit NUBAN account number"
    }
  },
  "additionalProperties": false
}

ng_identity_format

$0.002 per call. Format-validate a Nigerian NIN, BVN, TIN, CAC RC or CAC BN number. Returns validity only — no database lookup and no personal data.

Argument	Type	Description
type*	string	Which number type
value*	string	The number to check

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "type",
    "value"
  ],
  "properties": {
    "type": {
      "enum": [
        "NIN",
        "BVN",
        "TIN",
        "CAC_RC",
        "CAC_BN"
      ],
      "type": "string",
      "description": "Which number type"
    },
    "value": {
      "type": "string",
      "description": "The number to check"
    }
  },
  "additionalProperties": false
}

ng_phone_lookup

$0.003 per call. Normalise a Nigerian phone number (local, +234 or 234 form) and return E.164, line type and network from the prefix allocation. Pay-per-call in USDC over x402.

Argument	Type	Description
number*	string	Nigerian number, e.g. 08031234567

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "number"
  ],
  "properties": {
    "number": {
      "type": "string",
      "description": "Nigerian number, e.g. 08031234567"
    }
  },
  "additionalProperties": false
}

ng_states

List all 36 Nigerian states plus the Federal Capital Territory with their capitals. Free — no payment required.

No arguments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}