curl --silent --show-error --fail-with-body --request POST \
--url 'https://api.stateset.com/api/v1/a2a/messages' \
--header "Authorization: Bearer $STATESET_API_KEY" \
--header 'Content-Type: application/json' \
--data '{
"conversation_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"from_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"message_type": "string",
"payload": {},
"to_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}'
{
"attempts": 1,
"conversation_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"created_at": "2026-08-31T14:22:05Z",
"from_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"message_type": "string",
"sequence_number": 1001,
"status": "pending",
"to_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}
Send a message
Send a message
POST
/
api
/
v1
/
a2a
/
messages
curl --silent --show-error --fail-with-body --request POST \
--url 'https://api.stateset.com/api/v1/a2a/messages' \
--header "Authorization: Bearer $STATESET_API_KEY" \
--header 'Content-Type: application/json' \
--data '{
"conversation_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"from_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"message_type": "string",
"payload": {},
"to_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}'
{
"attempts": 1,
"conversation_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"created_at": "2026-08-31T14:22:05Z",
"from_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"message_type": "string",
"sequence_number": 1001,
"status": "pending",
"to_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}
Confirm your deployment before running this request. This page describes an API contract;
a published reference does not establish hosted availability. Check the dated
host report and obtain your deployment URL and credentials.
Replace the example host if your provisioned service uses a different URL.
Request body
SendMessageRequest
string,null
string
required
string
required
object
required
Additional keys map to values of type
string.string
required
Response
MessageResponse
integer (int32)
required
Minimum:
0.string
required
string
required
string
required
string
required
string
required
integer (int64)
required
Minimum:
0.string
required
string
required
Status codes
| Code | Meaning |
|---|---|
201 | — |
400 | — |
Using this contract
Read the source OpenAPI document for declared schemas and alternatives. This page also includes documented corrections from the spec overlays. Example IDs and values are illustrative; replace them with records from your workspace.curl --silent --show-error --fail-with-body --request POST \
--url 'https://api.stateset.com/api/v1/a2a/messages' \
--header "Authorization: Bearer $STATESET_API_KEY" \
--header 'Content-Type: application/json' \
--data '{
"conversation_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"from_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"message_type": "string",
"payload": {},
"to_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}'
{
"attempts": 1,
"conversation_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"created_at": "2026-08-31T14:22:05Z",
"from_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
"message_type": "string",
"sequence_number": 1001,
"status": "pending",
"to_agent_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6"
}
Last modified on September 21, 2026