Tanod Finance

chainpeek: ETH and BTC OHLCV price candles from on-chain DEX swaps

get_dex_price_candles

Read-onlyIdempotent

chainpeek: Get ETH or BTC OHLCV price candles from on-chain DEX swaps. Returns OHLCV candles for ETH (WETH/USDC) or BTC (cbBTC/USDC) in USDC from public Uniswap v3 swaps on Base, at 5m, 15m, 1h, 4h or 1d, with the pool, fee tier and the block the data is current to (about a minute behind). Input: pair, optional interval and limit. Computed by Tanod from one allow-listed pool per pair, not an exchange feed: DEX prices can differ from centralized exchanges; a candle without swaps repeats the previous close; the last candle is still forming. Informational only, not investment advice. A bad pair, interval or limit is a 422 before any payment; a 503 warming_up (index still loading) or rpc_unavailable is not charged. Typically under 0.1 s (served from an index kept current in the background). Price: USD 0.003. Free: 10 chain reads per IP per UTC day.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`pair`	Yes	WETH/USDC (ETH in USDC, Uniswap v3 0.3% pool on Base) or cbBTC/USDC (BTC in USDC, Uniswap v3 0.05% pool on Base).
`limit`	No	Number of candles, newest last. Default 48 (1d: 30). Lookback caps: 5m and 15m 200, 1h 168, 4h 42, 1d 30.
`interval`	No	Candle length, UTC-aligned.	1h

Output Schema

TableJSON Schema

Name	Required	Description
`dex`	No
`fee`	No
`base`	No
`note`	No
`pair`	No
`pool`	No
`as_of`	No
`chain`	No
`count`	No
`error`	No	Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object.
`quote`	No
`source`	No
`candles`	No
`interval`	No
`as_of_iso`	No
`price_unit`	No
`timestamps`	No
`as_of_block`	No
`interval_seconds`	No
`last_candle_partial`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 8, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "as_of": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
+    "as_of_block": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
+    "as_of_iso": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "base": {
+      "properties": {
+        "address": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "decimals": {
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "symbol": {
+          "type": [
+            "string",
+            "null"
+          ]
+        }
+      },
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "candles": {
+      "items": {
+        "properties": {
+          "close": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "high": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "low": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "open": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "swaps": {
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
+          "t": {
+            "type": [
+              "integer",
+              "null"
+            ]
+          },
+          "volume_base": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "volume_quote": {
+            "type": [
+              "number",
+              "null"
+            ]
+          }
+        },
+        "type": [
+          "object",
+          "null"
+        ]
+      },
+      "maxItems": 200,
+      "type": [
+        "array",
+        "null"
+      ]
+    },
+    "chain": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "count": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
+    "dex": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "error": {
+      "description": "Only on an error result: an object {code, message}, or the reason string of an x402 PaymentRequired object."
+    },
+    "fee": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
+    "interval": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "interval_seconds": {
+      "type": [
+        "integer",
+        "null"
+      ]
+    },
+    "last_candle_partial": {
+      "type": [
+        "boolean",
+        "null"
+      ]
+    },
+    "note": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "pair": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "pool": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "price_unit": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "quote": {
+      "properties": {
+        "address": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "decimals": {
+          "type": [
+            "integer",
+            "null"
+          ]
+        },
+        "symbol": {
+          "type": [
+            "string",
+            "null"
+          ]
+        }
+      },
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "source": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "timestamps": {
+      "type": [
+        "string",
+        "null"
+      ]
+    }
+  },
+  "type": "object"
+}

First observedOct 8, 2026

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