Run a native coding client with Anthropic Messages.
Supports text conversation history, client-executed tool calls/results and incremental streaming. Uses dashboard keys and permitted owned machines. Anthropic does not officially support non-Claude gateway models; API-format compatibility does not establish model behavior. Image/document input is unavailable here; media generation uses the B3IQ media MCP. Request bodies are limited to 1 MiB.
POST
/v1/messages
Supports text conversation history, client-executed tool calls/results
and incremental streaming. Uses dashboard keys and permitted owned
machines. Anthropic does not officially support non-Claude gateway
models; API-format compatibility does not establish model behavior.
Image/document input is unavailable here; media generation uses the
B3IQ media MCP. Request bodies are limited to 1 MiB.
Authentication
Bearer Token (b3iq_gateway)
Header Parameters
x-b3iq-node-id
string
optional
header
Optional permitted owned-machine pin. Competing pins must agree.
Request Body required
application/jsonmodel
string
REQUIRED
messages
object[]
REQUIRED
Array of:
object
system
string | object[]
One of:
Option 1string
Option 2
Array of:
object
tools
object[]
Array of:
object
stream
boolean
max_tokens
integer
REQUIRED
Responses
200
A Messages object or incremental Messages event stream.
application/jsonobject
default
An Anthropic-shaped error; status identifies auth, scope, size, quota or upstream failures.
curl -X POST 'https://b3iq.org/v1/messages' \ -H 'Authorization: Bearer YOUR_API_TOKEN' \ -H 'Content-Type: application/json' \ -d '{ "model": "string", "messages": [ {} ], "system": "string", "tools": [ {} ], "stream": true, "max_tokens": 1}'const response = await fetch('https://b3iq.org/v1/messages', { method: 'POST', headers: { "Authorization": "Bearer YOUR_API_TOKEN", "Content-Type": "application/json" }, body: JSON.stringify({ "model": "string", "messages": [ {} ], "system": "string", "tools": [ {} ], "stream": true, "max_tokens": 1 })});const data = await response.json();console.log(data);
200
Response
"<object>"API Playground
Try this endpoint
POST
/v1/messages