{
  "x402Version": 2,
  "id": 35736,
  "slug": "35736",
  "resource": "https://base-facts.yankii.fr/v1/verdict",
  "description": "Base token verdict for trading agents: risk level, score and flags (proxy, mint, pause, blacklist, owner, DEX liquidity on Uniswap v2/v3 and Aerodrome), each with the on-chain fact behind it. Facts and heuristics, not financial advice.",
  "type": "http",
  "serviceName": "Base Token Verdict",
  "resourceType": "Security",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x40661D56c2Bf416c5946A8b21098eaF8D33459A2",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "amountUsd": 0.01,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "properties": {
          "blockNumber": {
            "type": "string"
          },
          "disclaimer": {
            "type": "string"
          },
          "flags": {
            "items": {
              "properties": {
                "fact": {
                  "description": "The on-chain observation behind the flag",
                  "type": "string"
                },
                "id": {
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                    "upgradeable_proxy",
                    "owner_not_renounced",
                    "can_mint",
                    "can_pause",
                    "can_blacklist",
                    "no_liquidity",
                    "thin_liquidity",
                    "deep_liquidity"
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                  "type": "string"
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                    "dex": {
                      "type": "string"
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                    "fee": {
                      "type": [
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                        "null"
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                    },
                    "pool": {
                      "type": "string"
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                    "quote": {
                      "enum": [
                        "WETH",
                        "USDC"
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                      "type": "string"
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                    "quoteReserve": {
                      "type": "string"
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                    "quoteReserveUsd": {
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                        "null"
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            "minimum": 0,
            "type": "integer"
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          "method": "POST",
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        },
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            "blockNumber": "52136127",
            "disclaimer": "On-chain facts and heuristics read at block 52136127. Spot reserves can move within one block. Not financial advice.",
            "flags": [
              {
                "fact": "ZeppelinOS proxy: its code can be replaced; current implementation 0x2Ce6311ddAE708829bc0784C967b7d77D19FD779",
                "id": "upgradeable_proxy",
                "severity": "warn"
              },
              {
                "fact": "owner() returns 0x3ABd6f64A422225E61E435baE41db12096106df7",
                "id": "owner_not_renounced",
                "severity": "warn"
              },
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                "fact": "mint(address,uint256) selector found in the implementation bytecode (heuristic)",
                "id": "can_mint",
                "severity": "warn"
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              {
                "fact": "pause() selector found in the implementation bytecode (heuristic)",
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                "severity": "warn"
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                "fact": "a blacklist selector was found in the implementation bytecode (heuristic)",
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                "id": "deep_liquidity",
                "severity": "info"
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                  "dex": "uniswap-v3",
                  "fee": 3000,
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                  "tokenReserve": "76522772029843"
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                  "dex": "uniswap-v3",
                  "fee": 500,
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                  "quote": "WETH",
                  "quoteReserve": "1983500656279964419661",
                  "quoteReserveUsd": "5326239.19",
                  "tokenReserve": "4598355794854"
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              "scope": "WETH and USDC pairs on Uniswap v2, Uniswap v3 (4 fee tiers) and Aerodrome (volatile and stable)",
              "wethPriceUsd": "2685.27"
            },
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            "source": "base-mainnet-rpc",
            "summary": "USDC: High-severity: can_blacklist. Warnings: upgradeable_proxy, owner_not_renounced, can_mint, can_pause. $96,907,720 of WETH/USDC-side liquidity in 7 pool(s).",
            "symbol": "USDC",
            "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
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                  "disclaimer": {
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                          "description": "The on-chain observation behind the flag",
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                            "can_pause",
                            "can_blacklist",
                            "no_liquidity",
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                          "type": "string"
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                      "medium",
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                    "type": "string"
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                    "properties": {
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                        "items": {
                          "properties": {
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                              "type": "string"
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                            "fee": {
                              "type": [
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                                "null"
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                            "pool": {
                              "type": "string"
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                              "type": "string"
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                              "type": "string"
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                              "type": "string"
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                      "scope": {
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                      "wethPriceUsd": {
                        "type": "string"
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                    "type": "integer"
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                  "source": {
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                  "summary": {
                    "type": "string"
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        "required": [
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        "type": "object"
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  "tags": [
    "base",
    "token",
    "verdict",
    "risk",
    "defi",
    "bazaar"
  ],
  "sourceHost": "base-facts.yankii.fr",
  "lastUpdated": "2026-10-04T10:01:55.378Z",
  "quality": {
    "calls30d": 1,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-10-04T10:01:55.161Z"
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  "metadata": {
    "serviceName": "Base Token Verdict",
    "extensions": {
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              "blockNumber": "52136127",
              "disclaimer": "On-chain facts and heuristics read at block 52136127. Spot reserves can move within one block. Not financial advice.",
              "flags": [
                {
                  "fact": "ZeppelinOS proxy: its code can be replaced; current implementation 0x2Ce6311ddAE708829bc0784C967b7d77D19FD779",
                  "id": "upgradeable_proxy",
                  "severity": "warn"
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                {
                  "fact": "owner() returns 0x3ABd6f64A422225E61E435baE41db12096106df7",
                  "id": "owner_not_renounced",
                  "severity": "warn"
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                {
                  "fact": "mint(address,uint256) selector found in the implementation bytecode (heuristic)",
                  "id": "can_mint",
                  "severity": "warn"
                },
                {
                  "fact": "pause() selector found in the implementation bytecode (heuristic)",
                  "id": "can_pause",
                  "severity": "warn"
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                {
                  "fact": "a blacklist selector was found in the implementation bytecode (heuristic)",
                  "id": "can_blacklist",
                  "severity": "high"
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                {
                  "fact": "WETH/USDC-side reserves in Uniswap v2/v3 and Aerodrome pools: $96,907,720 (at least $1,000,000)",
                  "id": "deep_liquidity",
                  "severity": "info"
                }
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              "level": "high",
              "liquidity": {
                "pools": [
                  {
                    "dex": "uniswap-v3",
                    "fee": 3000,
                    "pool": "0x6c561B446416E1A00E8E93E221854d6eA4171372",
                    "quote": "WETH",
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                  {
                    "dex": "uniswap-v3",
                    "fee": 500,
                    "pool": "0xd0b53D9277642d899DF5C87A3966A349A798F224",
                    "quote": "WETH",
                    "quoteReserve": "1983500656279964419661",
                    "quoteReserveUsd": "5326239.19",
                    "tokenReserve": "4598355794854"
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                ],
                "quoteLiquidityUsd": "96907719.96",
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                "wethPriceUsd": "2685.27"
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              "riskScore": 83,
              "source": "base-mainnet-rpc",
              "summary": "USDC: High-severity: can_blacklist. Warnings: upgradeable_proxy, owner_not_renounced, can_mint, can_pause. $96,907,720 of WETH/USDC-side liquidity in 7 pool(s).",
              "symbol": "USDC",
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                      "type": "string"
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                            "description": "The on-chain observation behind the flag",
                            "type": "string"
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                            "enum": [
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                              "upgradeable_proxy",
                              "owner_not_renounced",
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                              "can_blacklist",
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    "manifest_name": "base-facts.yankii.fr",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
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            "fee": 0,
            "pool": "string",
            "quote": "WETH",
            "quoteReserve": "string",
            "quoteReserveUsd": "string",
            "tokenReserve": "string"
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      "riskScore": 0,
      "source": "string",
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      "symbol": "string",
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}