FabTally Chain

PAID $0.001 (x402, USDC on Base). Resolve an ENS .eth or Basename .base.eth name's registration expiry ON-CHAIN (public RPC). Returns expiry date, days-left, whether it's in the 90-day grace period, the release date it becomes registrable again, and the current owner. Read-only, descriptive. Args: name. Without payment returns the x402 challenge; pass x_payment to settle.

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "description": "Full ENS name ending in .eth (e.g. vitalik.eth) or .base.eth (e.g. jesse.base.eth)."
    },
    "x_payment": {
      "type": "string",
      "description": "x402 payment payload (base64) for this PAID read. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
    }
  },
  "required": [
    "name"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

PAID $0.001 (x402, USDC on Base). Current gas for a chain via public RPC: base fee + suggested priority + suggested max fee (gwei) at the latest block. If below_gwei is set, also returns whether the base fee is at/below your threshold right now. Read-only. Args: chain (ethereum|base|arbitrum|polygon|bsc|optimism), below_gwei (optional). Without payment returns the x402 challenge; pass x_payment to settle.

{
  "type": "object",
  "properties": {
    "chain": {
      "type": "string",
      "enum": [
        "ethereum",
        "base",
        "arbitrum",
        "polygon",
        "bsc",
        "optimism"
      ],
      "description": "Chain to read gas for."
    },
    "below_gwei": {
      "type": "number",
      "description": "Optional threshold: return a boolean of whether base fee is at/below this many gwei now."
    },
    "x_payment": {
      "type": "string",
      "description": "x402 payment payload (base64) for this PAID read. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
    }
  },
  "required": [
    "chain"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

PAID $0.003 (x402, USDC on Base). Next token vesting/unlock event(s) from DefiLlama's PUBLIC emissions dataset: upcoming unlock date(s), token amount, and % of max supply, with a human description. Cleanly says so when a token has no public unlock schedule. Read-only, descriptive — NOT a price signal. Args: token (symbol, protocol name, or contract address), chain (optional, for address lookup). Without payment returns the x402 challenge; pass x_payment to settle.

{
  "type": "object",
  "properties": {
    "token": {
      "type": "string",
      "description": "Token symbol (e.g. ARB), protocol name (e.g. arbitrum), or contract address."
    },
    "chain": {
      "type": "string",
      "description": "Chain of the contract address (only used when token is an address)."
    },
    "x_payment": {
      "type": "string",
      "description": "x402 payment payload (base64) for this PAID read. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
    }
  },
  "required": [
    "token"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}

PAID $0.003 (x402, USDC on Base). Chainlink price-feed health via public RPC: last-update age, latest answer (scaled by decimals), round monotonicity (is the answer current?), a stale flag vs the heartbeat, optional deviation vs a reference price, and per-factor flags. Read-only, descriptive. Args: feed_address, chain, heartbeat_seconds (optional), reference (optional). Without payment returns the x402 challenge; pass x_payment.

{
  "type": "object",
  "properties": {
    "feed_address": {
      "type": "string",
      "description": "Chainlink aggregator/proxy address (0x…40-hex), e.g. ETH/USD 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419."
    },
    "chain": {
      "type": "string",
      "enum": [
        "ethereum",
        "base",
        "arbitrum",
        "polygon",
        "bsc",
        "optimism"
      ],
      "description": "Chain the feed is deployed on."
    },
    "heartbeat_seconds": {
      "type": "number",
      "description": "The feed's heartbeat in seconds for a precise stale check (optional)."
    },
    "reference": {
      "type": "number",
      "description": "A reference price to compute deviation % against (optional)."
    },
    "x_payment": {
      "type": "string",
      "description": "x402 payment payload (base64) for this PAID read. If supplied it is forwarded as the X-PAYMENT header to settle the call and return the real result instead of a 402 challenge. Omit to get the price challenge first."
    }
  },
  "required": [
    "feed_address",
    "chain"
  ],
  "additionalProperties": false,
  "$schema": "http://json-schema.org/draft-07/schema#"
}