seedance-mcp

text_to_video

Create videos from text prompts via Seedance models on RunAPI, returning a task ID, status, and output URLs.

Instructions

Create a Seedance task on RunAPI (text to video). Returns a task id, status, and output URLs.

Input Schema

TableJSON Schema

Name	Required	Description
`seed`	No	Declared type: integer.
`wait`	No	Poll until the task reaches a terminal status.
`model`	No	RunAPI model slug for this model line.
`prompt`	No	Declared type: string.
`timeout_ms`	No
`web_search`	No	Declared type: boolean.
`lock_camera`	No	Declared type: boolean.
`aspect_ratio`	No	Declared type: string. Known values: "1:1", "4:3", "3:4", "16:9", "9:16", "21:9", "auto".
`callback_url`	No	Declared type: string.
`output_format`	No	Output video container format. Declared type: string. Known values: "mp4", "mov".
`generate_audio`	No	Declared type: boolean.
`duration_seconds`	No	Declared type: integer.
`poll_interval_ms`	No
`output_resolution`	No	Declared type: string. Known values: "480p", "720p", "1080p", "4k".
`return_last_frame`	No	Whether to return the generated video's last frame. Declared type: boolean.
`source_image_urls`	No	Declared type: array.
`last_frame_image_url`	No	Declared type: string.
`reference_audio_urls`	No	Declared type: array.
`reference_image_urls`	No	Declared type: array.
`reference_video_urls`	No	Declared type: array.
`enable_safety_checker`	No	Declared type: boolean.
`first_frame_image_url`	No	Declared type: string.

Schema Changelog

Changes observed during successful MCP inspections.

Changed33 schema fields changedv0.3.0Oct 4, 2026

addedInput schema / additionalProperties
```
Added value: +{}
```

removedInput schema / properties / aspect_ratio / anyOf

Removed value: -[
-  {
-    "const": "1:1",
-    "type": "string"
-  },
-  {
-    "const": "4:3",
-    "type": "string"
-  },
-  {
-    "const": "3:4",
-    "type": "string"
-  },
-  {
-    "const": "16:9",
-    "type": "string"
-  },
-  {
-    "const": "9:16",
-    "type": "string"
-  },
-  {
-    "const": "21:9",
-    "type": "string"
-  },
-  {
-    "const": "auto",
-    "type": "string"
-  }
-]

addedInput schema / properties / aspect_ratio / description

Added value: +"Declared type: string. Known values: \"1:1\", \"4:3\", \"3:4\", \"16:9\", \"9:16\", \"21:9\", \"auto\"."

addedInput schema / properties / aspect_ratio / type
```
Added value: +"string"
```
addedInput schema / properties / callback_url / description
```
Added value: +"Declared type: string."
```
addedInput schema / properties / duration_seconds / description
```
Added value: +"Declared type: integer."
```
removedInput schema / properties / duration_seconds / maximum
```
Removed value: -12
```
removedInput schema / properties / duration_seconds / minimum
```
Removed value: -4
```
changedInput schema / properties / duration_seconds / type
```
Previous value: -"number"New value: +"integer"
```
addedInput schema / properties / enable_safety_checker / description
```
Added value: +"Declared type: boolean."
```
addedInput schema / properties / first_frame_image_url / description
```
Added value: +"Declared type: string."
```
addedInput schema / properties / generate_audio / description
```
Added value: +"Declared type: boolean."
```
addedInput schema / properties / last_frame_image_url / description
```
Added value: +"Declared type: string."
```
addedInput schema / properties / lock_camera / description
```
Added value: +"Declared type: boolean."
```

removedInput schema / properties / model / enum

Removed value: -[
-  "seedance-1.5-pro",
-  "seedance-2-mini",
-  "seedance-2.0",
-  "seedance-2.0-fast",
-  "seedance-2.5",
-  "seedance-v1-pro",
-  "seedance-v1-pro-fast"
-]

removedInput schema / properties / output_format / anyOf

Removed value: -[
-  {
-    "const": "mp4",
-    "type": "string"
-  },
-  {
-    "const": "mov",
-    "type": "string"
-  }
-]

changedInput schema / properties / output_format / description

Previous value: -"Output video container format."New value: +"Output video container format. Declared type: string. Known values: \"mp4\", \"mov\"."

addedInput schema / properties / output_format / type
```
Added value: +"string"
```

removedInput schema / properties / output_resolution / anyOf

Removed value: -[
-  {
-    "const": "480p",
-    "type": "string"
-  },
-  {
-    "const": "720p",
-    "type": "string"
-  },
-  {
-    "const": "1080p",
-    "type": "string"
-  },
-  {
-    "const": "4k",
-    "type": "string"
-  }
-]

addedInput schema / properties / output_resolution / description

Added value: +"Declared type: string. Known values: \"480p\", \"720p\", \"1080p\", \"4k\"."

addedInput schema / properties / output_resolution / type
```
Added value: +"string"
```
addedInput schema / properties / prompt / description
```
Added value: +"Declared type: string."
```
addedInput schema / properties / reference_audio_urls / description
```
Added value: +"Declared type: array."
```
addedInput schema / properties / reference_image_urls / description
```
Added value: +"Declared type: array."
```
addedInput schema / properties / reference_video_urls / description
```
Added value: +"Declared type: array."
```

changedInput schema / properties / return_last_frame / description

Previous value: -"Whether to return the generated video's last frame."New value: +"Whether to return the generated video's last frame. Declared type: boolean."

addedInput schema / properties / seed / description
```
Added value: +"Declared type: integer."
```
removedInput schema / properties / seed / maximum
```
Removed value: -2147483647
```
removedInput schema / properties / seed / minimum
```
Removed value: --1
```

changedInput schema / properties / seed / type

Previous value: -"number"New value: +"integer"

addedInput schema / properties / source_image_urls / description
```
Added value: +"Declared type: array."
```
addedInput schema / properties / web_search / description
```
Added value: +"Declared type: boolean."
```
addedInput schema / required
```
Added value: +[]
```

Changed12 schema fields changedv0.2.0Aug 27, 2026

removedInput schema / additionalProperties
```
Removed value: -false
```

addedInput schema / properties / aspect_ratio / anyOf

Added value: +[
+  {
+    "const": "1:1",
+    "type": "string"
+  },
+  {
+    "const": "4:3",
+    "type": "string"
+  },
+  {
+    "const": "3:4",
+    "type": "string"
+  },
+  {
+    "const": "16:9",
+    "type": "string"
+  },
+  {
+    "const": "9:16",
+    "type": "string"
+  },
+  {
+    "const": "21:9",
+    "type": "string"
+  },
+  {
+    "const": "auto",
+    "type": "string"
+  }
+]

removedInput schema / properties / aspect_ratio / enum

Removed value: -[
-  "1:1",
-  "4:3",
-  "3:4",
-  "16:9",
-  "9:16",
-  "21:9",
-  "auto"
-]

removedInput schema / properties / aspect_ratio / type
```
Removed value: -"string"
```

addedInput schema / properties / output_format / anyOf

Added value: +[
+  {
+    "const": "mp4",
+    "type": "string"
+  },
+  {
+    "const": "mov",
+    "type": "string"
+  }
+]

removedInput schema / properties / output_format / enum
```
Removed value: -[
-  "mp4",
-  "mov"
-]
```
removedInput schema / properties / output_format / type
```
Removed value: -"string"
```

addedInput schema / properties / output_resolution / anyOf

Added value: +[
+  {
+    "const": "480p",
+    "type": "string"
+  },
+  {
+    "const": "720p",
+    "type": "string"
+  },
+  {
+    "const": "1080p",
+    "type": "string"
+  },
+  {
+    "const": "4k",
+    "type": "string"
+  }
+]

removedInput schema / properties / output_resolution / enum

Removed value: -[
-  "480p",
-  "720p",
-  "1080p",
-  "4k"
-]

removedInput schema / properties / output_resolution / type
```
Removed value: -"string"
```
addedInput schema / properties / poll_interval_ms / maximum
```
Added value: +9007199254740991
```
addedInput schema / properties / timeout_ms / maximum
```
Added value: +9007199254740991
```

Changed3 schema fields changedv0.1.12Aug 19, 2026

changedInput schema / properties / model / enum

Previous value: -[
-  "seedance-1.5-pro",
-  "seedance-2-mini",
-  "seedance-2.0",
-  "seedance-2.0-fast",
-  "seedance-v1-pro",
-  "seedance-v1-pro-fast"
-]New value: +[
+  "seedance-1.5-pro",
+  "seedance-2-mini",
+  "seedance-2.0",
+  "seedance-2.0-fast",
+  "seedance-2.5",
+  "seedance-v1-pro",
+  "seedance-v1-pro-fast"
+]

addedInput schema / properties / output_format

Added value: +{
+  "description": "Output video container format.",
+  "enum": [
+    "mp4",
+    "mov"
+  ],
+  "type": "string"
+}

addedInput schema / properties / return_last_frame

Added value: +{
+  "description": "Whether to return the generated video's last frame.",
+  "type": "boolean"
+}

Changed2 schema fields changedv0.1.11Aug 5, 2026

changedInput schema / properties / aspect_ratio / enum

Previous value: -[
-  "1:1",
-  "4:3",
-  "3:4",
-  "16:9",
-  "9:16",
-  "21:9",
-  "auto",
-  "9:21"
-]New value: +[
+  "1:1",
+  "4:3",
+  "3:4",
+  "16:9",
+  "9:16",
+  "21:9",
+  "auto"
+]

changedInput schema / properties / model / enum

Previous value: -[
-  "seedance-1.5-pro",
-  "seedance-2-mini",
-  "seedance-2.0",
-  "seedance-2.0-fast",
-  "seedance-v1-lite",
-  "seedance-v1-pro",
-  "seedance-v1-pro-fast"
-]New value: +[
+  "seedance-1.5-pro",
+  "seedance-2-mini",
+  "seedance-2.0",
+  "seedance-2.0-fast",
+  "seedance-v1-pro",
+  "seedance-v1-pro-fast"
+]

Changed2 schema fields changedv0.1.9Jul 22, 2026
- addedInput schema / properties / seed / maximum
```
Added value: +2147483647
```
- addedInput schema / properties / seed / minimum
```
Added value: +-1
```
Changed19 schema fields changedv0.1.7Jul 11, 2026
- addedInput schema / properties / callback_url
```
Added value: +{
+  "type": "string"
+}
```
- addedInput schema / properties / enable_safety_checker
```
Added value: +{
+  "type": "boolean"
+}
```
- addedInput schema / properties / first_frame_image_url / type
```
Added value: +"string"
```
- addedInput schema / properties / generate_audio
```
Added value: +{
+  "type": "boolean"
+}
```
- addedInput schema / properties / last_frame_image_url / type
```
Added value: +"string"
```
- addedInput schema / properties / lock_camera
```
Added value: +{
+  "type": "boolean"
+}
```
- changedInput schema / properties / model / enum
```
Previous value: -[
-  "seedance-1.5-pro",
-  "seedance-2.0",
-  "seedance-2.0-fast",
-  "seedance-v1-lite",
-  "seedance-v1-pro",
-  "seedance-v1-pro-fast"
-]New value: +[
+  "seedance-1.5-pro",
+  "seedance-2-mini",
+  "seedance-2.0",
+  "seedance-2.0-fast",
+  "seedance-v1-lite",
+  "seedance-v1-pro",
+  "seedance-v1-pro-fast"
+]
```
- changedInput schema / properties / output_resolution / enum
```
Previous value: -[
-  "480p",
-  "720p",
-  "1080p"
-]New value: +[
+  "480p",
+  "720p",
+  "1080p",
+  "4k"
+]
```
- addedInput schema / properties / prompt
```
Added value: +{
+  "type": "string"
+}
```
- addedInput schema / properties / reference_audio_urls / items
```
Added value: +{}
```
- addedInput schema / properties / reference_audio_urls / type
```
Added value: +"array"
```
- addedInput schema / properties / reference_image_urls / items
```
Added value: +{}
```
- addedInput schema / properties / reference_image_urls / type
```
Added value: +"array"
```
- addedInput schema / properties / reference_video_urls / items
```
Added value: +{}
```
- addedInput schema / properties / reference_video_urls / type
```
Added value: +"array"
```
- addedInput schema / properties / seed
```
Added value: +{
+  "type": "number"
+}
```
- addedInput schema / properties / source_image_urls / items
```
Added value: +{}
```
- addedInput schema / properties / source_image_urls / type
```
Added value: +"array"
```
- addedInput schema / properties / web_search
```
Added value: +{
+  "type": "boolean"
+}
```
Changed3 schema fields changedv0.1.4Jun 24, 2026
- addedInput schema / properties / duration_seconds / maximum
```
Added value: +12
```
- addedInput schema / properties / duration_seconds / minimum
```
Added value: +4
```
- addedInput schema / properties / duration_seconds / type
```
Added value: +"number"
```
First observedv0.1.0Jun 24, 2026

TDQS

C2.9/5.0

Behavior2/5

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

With no annotations, the description carries the full burden. It does disclose the async task model (returns task id and status) and the output shape, but says nothing about cost implications, auth requirements, whether the task is cancellable, or what happens on timeout/failure for a 22-parameter generation job.

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?

Two sentences, no filler, and the core action is front-loaded before the return-value note. Slightly compressed given the tool's 22 parameters, but every sentence earns its place.

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

Completeness2/5

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

For a 22-parameter generative task tool with no annotations and no output schema, the description is thin: it omits how to retrieve results later (get_task), default model selection, and cost/pricing context. The return-shape sentence is the only substantive content.

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 91%, so the schema already documents nearly all parameters; the description adds no parameter-level meaning beyond the 'text to video' framing. Baseline 3 is appropriate when the schema does the heavy lifting.

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?

States a specific verb (Create) plus resource (Seedance task on RunAPI) and modality (text to video), and previews the return payload. It is clearly distinguishable from get_task, but never names a sibling or contrast case explicitly.

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?

No when-to-use guidance at all: nothing about when to prefer this over other task-creating tools, no mention of the wait/poll_interval_ms tradeoff, no note that check_pricing or login may be prerequisites. Usage must be inferred entirely from the name.

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

Deploy Server

text_to_video

Instructions

Input Schema

Schema Changelog

TDQS

Other Tools