x402 Toolbox

Gas price + ETH/USD price + latest Base block in one call. Optional ?ref=<address> pays that wallet a referral cut. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/market-snapshot for production/agentic use.

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

Ethereum and Base gas price and block data, cleaned into one consistent schema per chain. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/normalized-gas for production/agentic use.

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

Real gas price on Ethereum vs Base side by side, with delta, ratio, and estimated USD cost of a standard transfer on each chain. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/gas-comparator for production/agentic use.

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

Recent USDC transfers on Base above a value threshold. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/large-usdc-transfers for production/agentic use.

{
  "type": "object",
  "properties": {
    "minUsd": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Minimum USD value to include (default 10000)."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Real on-chain context for a wallet address: contract vs EOA, native balance, transaction count. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/enrich-address for production/agentic use.

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "Address to look up."
    }
  },
  "required": [
    "address"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Rolling average/min/max/volatility/trend for Ethereum gas price over a window. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/gas-metrics for production/agentic use.

{
  "type": "object",
  "properties": {
    "windowMinutes": {
      "type": "number",
      "exclusiveMinimum": 0,
      "description": "Window size in minutes (default 10)."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

ETH/USD price with retry-with-backoff and last-known-good cache fallback. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/reliable-eth-price for production/agentic use.

{
  "type": "object",
  "properties": {
    "simulateFailureRate": {
      "type": "number",
      "minimum": 0,
      "maximum": 1,
      "description": "0-1, simulates upstream failures to demo the fallback path."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Wikipedia article lead section, converted from rendered HTML into clean, tag-free JSON. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/wiki-summary for production/agentic use.

{
  "type": "object",
  "properties": {
    "title": {
      "type": "string",
      "description": "Wikipedia article title."
    }
  },
  "required": [
    "title"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Checks whether a Base transaction hash has confirmed on-chain, returns a signed EIP-191 attestation. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/verify-tx for production/agentic use.

{
  "type": "object",
  "properties": {
    "txHash": {
      "type": "string",
      "description": "32-byte transaction hash to check."
    }
  },
  "required": [
    "txHash"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Checks a Base tx hash against 3 independent RPC providers in parallel; only signs an attestation if all agree. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/verify-tx-multi-source for production/agentic use.

{
  "type": "object",
  "properties": {
    "txHash": {
      "type": "string",
      "description": "32-byte transaction hash to check."
    }
  },
  "required": [
    "txHash"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Persisted, doubly-signed log of past oracle attestations from this server. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/attestation-log for production/agentic use.

{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 100,
      "description": "Max entries to return, 1-100 (default 20)."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Same gas + ETH/USD data, priced by requested freshness: cached (cheap) or live (guaranteed current). Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/freshness-priced-data for production/agentic use.

{
  "type": "object",
  "properties": {
    "freshness": {
      "type": "string",
      "enum": [
        "cached",
        "live"
      ],
      "description": "Either \"cached\" (default) or \"live\"."
    }
  },
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Raw Ethereum gas price samples over a date range, JSON or CSV, priced by real row count (min $0.005, max 24h range). Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/gas-history-export for production/agentic use.

{
  "type": "object",
  "properties": {
    "from": {
      "type": "string",
      "description": "ISO 8601 range start."
    },
    "to": {
      "type": "string",
      "description": "ISO 8601 range end."
    },
    "format": {
      "type": "string",
      "enum": [
        "json",
        "csv"
      ],
      "description": "Either \"json\" (default) or \"csv\"."
    }
  },
  "required": [
    "from",
    "to"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Trust score from real on-chain activity plus our own ledger of settled payments from this address. Free via MCP; the same data is also available pay-per-call at https://lab.paidapis.net/api/reputation for production/agentic use.

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "Address to score."
    }
  },
  "required": [
    "address"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}