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POST
/
v1
/
threads
/
{threadId}
/
message
Send thread message
curl --request POST \
  --url https://capy.ai/api/v1/threads/{threadId}/message \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "message": "<string>",
  "impersonateUserEmail": "jsmith@example.com",
  "browserSnapshotIds": [
    "<string>"
  ],
  "attachmentUrls": [
    "<string>"
  ]
}
'
{
  "id": "<string>",
  "status": "<string>"
}

Authorizations

​
Authorization
string
header
required

API token (capy_xxxx). Generate at capy.ai/settings/tokens

Path Parameters

​
threadId
string
required

Thread jam ID.

Body

application/json
​
message
string
required
Minimum string length: 1
​
impersonateUserEmail
string<email>
Pattern: ^(?!\.)(?!.*\.\.)([A-Za-z0-9_'+\-\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\-]*\.)+[A-Za-z]{2,}$
​
model
enum<string>
Available options:
claude-opus-4-8,
claude-opus-4-7,
claude-opus-4-6,
claude-opus-4-5,
claude-sonnet-4-6,
claude-haiku-4-5,
gpt-5.5,
gpt-5.5-pro,
gpt-5.4,
gpt-5.4-mini,
gpt-5.3-codex,
gpt-5.3-codex-spark,
gemini-3.1-pro-preview,
gemini-3-flash-preview,
grok-4-1-fast,
glm-5.2,
glm-5.1,
glm-5v-turbo,
glm-5,
deepseek-v4-pro,
glm-5-turbo,
glm-4.7,
kimi-k2.7-code,
kimi-k2.6,
qwen3-coder,
claude-fable-5
​
speed
enum<string>
Available options:
fast,
standard
​
reasoning
object
​
buildModel
enum<string>
Available options:
claude-opus-4-8,
claude-opus-4-7,
claude-opus-4-6,
claude-opus-4-5,
claude-sonnet-4-6,
claude-haiku-4-5,
gpt-5.5,
gpt-5.5-pro,
gpt-5.4,
gpt-5.4-mini,
gpt-5.3-codex,
gpt-5.3-codex-spark,
gemini-3.1-pro-preview,
gemini-3-flash-preview,
grok-4-1-fast,
glm-5.2,
glm-5.1,
glm-5v-turbo,
glm-5,
deepseek-v4-pro,
glm-5-turbo,
glm-4.7,
kimi-k2.7-code,
kimi-k2.6,
qwen3-coder,
claude-fable-5
​
buildSpeed
enum<string>
Available options:
fast,
standard
​
buildReasoning
object
​
browserSnapshotIds
string[]
​
attachmentUrls
string<uri>[]

Response

Success

​
id
string
required
​
status
string
required
Allowed value: "sent"