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POST
/
v1
/
agents
/
{agentId}
/
instances
/
{id}
/
messages
Send Message
curl --request POST \
  --url https://app.opencomputer.dev/v1/agents/{agentId}/instances/{id}/messages \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "content": "<string>",
  "conversation_id": "<string>"
}
'
Content-Type: text/event-stream

data: {"type":"text","content":"Cloning the repo now...","conversation_id":"1712345678.123456"}
data: {"type":"text","content":"Found 3 issues...","conversation_id":"1712345678.123456"}
data: {"type":"done"}
Send a message to an agent instance. Returns a server-sent event stream with the agent’s response. If the instance is still creating, waits up to 30s for it to become ready.
​
agentId
string
required
Agent ID
​
id
string
required
Instance ID
​
content
string
required
Message content
​
conversation_id
string
Conversation identifier for multiplexing. The caller owns this identity (e.g. Slack thread timestamp).
Content-Type: text/event-stream

data: {"type":"text","content":"Cloning the repo now...","conversation_id":"1712345678.123456"}
data: {"type":"text","content":"Found 3 issues...","conversation_id":"1712345678.123456"}
data: {"type":"done"}