Gate MCP

cex_options_list_options_underlying_candlesticks

Read-onlyIdempotent

Get candlestick data for an options underlying index

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "underlying": "<underlying>"
    },
    "name": "cex_options_list_options_underlying_candlesticks"
  }
}

Input Schema

Name	Required	Description	Default
`to`	No	End timestamp in seconds
`from`	No	Start timestamp in seconds
`limit`	No	Maximum number of records to return
`interval`	No	Time interval between data points, e.g. 1m, 5m, 15m, 30m, 1h	5m
`underlying`	Yes	Underlying asset name, e.g. BTC_USDT

Schema Changelog

Changes observed during successful MCP inspections.

Changed10 schema fields changedNov 2, 2026
- addedInput schema / properties / from / format
```
Added value: +"int64"
```
- changedInput schema / properties / from / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / interval / default
```
Added value: +"5m"
```
- addedInput schema / properties / interval / enum
```
Added value: +[
+  "1m",
+  "5m",
+  "15m",
+  "30m",
+  "1h"
+]
```
- addedInput schema / properties / limit / default
```
Added value: +100
```
- addedInput schema / properties / limit / maximum
```
Added value: +1000
```
- addedInput schema / properties / limit / minimum
```
Added value: +1
```
- changedInput schema / properties / limit / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / to / format
```
Added value: +"int64"
```
- changedInput schema / properties / to / type
```
Previous value: -"number"New value: +"integer"
```
Changed10 schema fields changedOct 16, 2026
- removedInput schema / properties / from / format
```
Removed value: -"int64"
```
- changedInput schema / properties / from / type
```
Previous value: -"integer"New value: +"number"
```
- removedInput schema / properties / interval / default
```
Removed value: -"5m"
```
- removedInput schema / properties / interval / enum
```
Removed value: -[
-  "1m",
-  "5m",
-  "15m",
-  "30m",
-  "1h"
-]
```
- removedInput schema / properties / limit / default
```
Removed value: -100
```
- removedInput schema / properties / limit / maximum
```
Removed value: -1000
```
- removedInput schema / properties / limit / minimum
```
Removed value: -1
```
- changedInput schema / properties / limit / type
```
Previous value: -"integer"New value: +"number"
```
- removedInput schema / properties / to / format
```
Removed value: -"int64"
```
- changedInput schema / properties / to / type
```
Previous value: -"integer"New value: +"number"
```
Changed10 schema fields changedOct 16, 2026
- addedInput schema / properties / from / format
```
Added value: +"int64"
```
- changedInput schema / properties / from / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / interval / default
```
Added value: +"5m"
```
- addedInput schema / properties / interval / enum
```
Added value: +[
+  "1m",
+  "5m",
+  "15m",
+  "30m",
+  "1h"
+]
```
- addedInput schema / properties / limit / default
```
Added value: +100
```
- addedInput schema / properties / limit / maximum
```
Added value: +1000
```
- addedInput schema / properties / limit / minimum
```
Added value: +1
```
- changedInput schema / properties / limit / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / to / format
```
Added value: +"int64"
```
- changedInput schema / properties / to / type
```
Previous value: -"number"New value: +"integer"
```
Changed10 schema fields changedOct 16, 2026
- removedInput schema / properties / from / format
```
Removed value: -"int64"
```
- changedInput schema / properties / from / type
```
Previous value: -"integer"New value: +"number"
```
- removedInput schema / properties / interval / default
```
Removed value: -"5m"
```
- removedInput schema / properties / interval / enum
```
Removed value: -[
-  "1m",
-  "5m",
-  "15m",
-  "30m",
-  "1h"
-]
```
- removedInput schema / properties / limit / default
```
Removed value: -100
```
- removedInput schema / properties / limit / maximum
```
Removed value: -1000
```
- removedInput schema / properties / limit / minimum
```
Removed value: -1
```
- changedInput schema / properties / limit / type
```
Previous value: -"integer"New value: +"number"
```
- removedInput schema / properties / to / format
```
Removed value: -"int64"
```
- changedInput schema / properties / to / type
```
Previous value: -"integer"New value: +"number"
```
Changed10 schema fields changedOct 16, 2026
- addedInput schema / properties / from / format
```
Added value: +"int64"
```
- changedInput schema / properties / from / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / interval / default
```
Added value: +"5m"
```
- addedInput schema / properties / interval / enum
```
Added value: +[
+  "1m",
+  "5m",
+  "15m",
+  "30m",
+  "1h"
+]
```
- addedInput schema / properties / limit / default
```
Added value: +100
```
- addedInput schema / properties / limit / maximum
```
Added value: +1000
```
- addedInput schema / properties / limit / minimum
```
Added value: +1
```
- changedInput schema / properties / limit / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / to / format
```
Added value: +"int64"
```
- changedInput schema / properties / to / type
```
Previous value: -"number"New value: +"integer"
```
Changed10 schema fields changedOct 16, 2026
- removedInput schema / properties / from / format
```
Removed value: -"int64"
```
- changedInput schema / properties / from / type
```
Previous value: -"integer"New value: +"number"
```
- removedInput schema / properties / interval / default
```
Removed value: -"5m"
```
- removedInput schema / properties / interval / enum
```
Removed value: -[
-  "1m",
-  "5m",
-  "15m",
-  "30m",
-  "1h"
-]
```
- removedInput schema / properties / limit / default
```
Removed value: -100
```
- removedInput schema / properties / limit / maximum
```
Removed value: -1000
```
- removedInput schema / properties / limit / minimum
```
Removed value: -1
```
- changedInput schema / properties / limit / type
```
Previous value: -"integer"New value: +"number"
```
- removedInput schema / properties / to / format
```
Removed value: -"int64"
```
- changedInput schema / properties / to / type
```
Previous value: -"integer"New value: +"number"
```
Changed10 schema fields changedOct 16, 2026
- addedInput schema / properties / from / format
```
Added value: +"int64"
```
- changedInput schema / properties / from / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / interval / default
```
Added value: +"5m"
```
- addedInput schema / properties / interval / enum
```
Added value: +[
+  "1m",
+  "5m",
+  "15m",
+  "30m",
+  "1h"
+]
```
- addedInput schema / properties / limit / default
```
Added value: +100
```
- addedInput schema / properties / limit / maximum
```
Added value: +1000
```
- addedInput schema / properties / limit / minimum
```
Added value: +1
```
- changedInput schema / properties / limit / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / to / format
```
Added value: +"int64"
```
- changedInput schema / properties / to / type
```
Previous value: -"number"New value: +"integer"
```
Changed10 schema fields changedOct 16, 2026
- removedInput schema / properties / from / format
```
Removed value: -"int64"
```
- changedInput schema / properties / from / type
```
Previous value: -"integer"New value: +"number"
```
- removedInput schema / properties / interval / default
```
Removed value: -"5m"
```
- removedInput schema / properties / interval / enum
```
Removed value: -[
-  "1m",
-  "5m",
-  "15m",
-  "30m",
-  "1h"
-]
```
- removedInput schema / properties / limit / default
```
Removed value: -100
```
- removedInput schema / properties / limit / maximum
```
Removed value: -1000
```
- removedInput schema / properties / limit / minimum
```
Removed value: -1
```
- changedInput schema / properties / limit / type
```
Previous value: -"integer"New value: +"number"
```
- removedInput schema / properties / to / format
```
Removed value: -"int64"
```
- changedInput schema / properties / to / type
```
Previous value: -"integer"New value: +"number"
```
Changed10 schema fields changedOct 16, 2026
- addedInput schema / properties / from / format
```
Added value: +"int64"
```
- changedInput schema / properties / from / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / interval / default
```
Added value: +"5m"
```
- addedInput schema / properties / interval / enum
```
Added value: +[
+  "1m",
+  "5m",
+  "15m",
+  "30m",
+  "1h"
+]
```
- addedInput schema / properties / limit / default
```
Added value: +100
```
- addedInput schema / properties / limit / maximum
```
Added value: +1000
```
- addedInput schema / properties / limit / minimum
```
Added value: +1
```
- changedInput schema / properties / limit / type
```
Previous value: -"number"New value: +"integer"
```
- addedInput schema / properties / to / format
```
Added value: +"int64"
```
- changedInput schema / properties / to / type
```
Previous value: -"number"New value: +"integer"
```
First observedApr 16, 2026

TDQS

C2.9/5.0

Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint, so the safety profile is fully covered elsewhere. The description adds nothing behavioral beyond that - no mention of pagination, default interval/limit behavior, timestamp units, or ordering of returned candles.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single front-loaded sentence with no filler. It is efficient, though its brevity comes at the cost of the usage and behavioral detail an agent would want.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema and five parameters, the description relies entirely on the schema for argument detail and says nothing about the shape or ordering of returned candles. For a read-only market-data tool with full annotation coverage this is minimally adequate, but the lack of disambiguation from the sibling candlestick tools leaves a real gap.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, with each of the five parameters documented including the enum for interval and the min/max on limit, so the schema carries the semantics. The description contributes no additional parameter meaning, which is the expected baseline when coverage is complete.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a specific verb (get), resource (candlestick data) and scope qualifier (options underlying index), which separates it in intent from cex_options_list_options_candlesticks and cex_fx_get_fx_candlesticks. It stops short of naming those siblings explicitly, so the differentiation must be inferred from the 'underlying index' phrase.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no statement of when to use this versus the per-contract candlestick tool or the spot/fx candlestick siblings, and no prerequisites or exclusions. The intended use can only be implied from the words 'options underlying index'.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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