Create message

POST

/messages

curl https://api.waibee.com/v1/messages \
  -H "x-api-key: $WAIBEE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-sonnet-4.6",
    "max_tokens": 1024,
    "messages": [{ "role": "user", "content": "Hello!" }]
  }'

import anthropic

client = anthropic.Anthropic(base_url="https://api.waibee.com", api_key="sk_live_...")
msg = client.messages.create(
    model="anthropic/claude-sonnet-4.6",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello!"}],
)
print(msg.content[0].text)

import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  baseURL: "https://api.waibee.com",
  apiKey: process.env.WAIBEE_API_KEY,
});
const msg = await client.messages.create({
  model: "anthropic/claude-sonnet-4.6",
  max_tokens: 1024,
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(msg.content[0].text);

Anthropic-compatible Messages endpoint, used by Claude Code and the Anthropic SDK. max_tokens is required. Accepts x-api-key or Authorization: Bearer. Streaming uses Anthropic SSE events and ends after message_stop (no [DONE] frame).

Authorizations

apiKeyAuth
bearerAuth

Request Body^required

application/json

object

model

required

string

max_tokens

required

Required by the Anthropic spec.

integer

messages

required

Array<object>

>= 1 items

object

role

required

string

Allowed values: system user assistant

content

required

string

system

System prompt (string or array of text blocks).

string

stream

boolean

temperature

number

top_k

integer

top_p

number

stop_sequences

Array<string>

tools

Array<object>

Function/tool definition for function calling.

object

type

string

Allowed value: function

function

object

name

string

description

string

parameters

JSON Schema of the tool arguments.

object

key

additional properties

any

thinking

Extended thinking configuration (Anthropic).

object

type

string

Allowed values: enabled

budget_tokens

Token budget for the thinking phase.

integer

output_config

Anthropic output configuration (Messages endpoint only).

object

effort

Reasoning effort. max is available here (Messages), unlike chat completions.

string

Allowed values: low medium high xhigh max

format

Structured output format.

object

key

additional properties

any

plugins

Per-request plugins.

object

dlp

Data-loss-prevention scan, mask or block. Optional: a DLP policy set for your API key applies as a floor of strictness even when this object is absent, and this object can only make the check stricter. entity_types is unioned with the policy’s categories, so the scan may be wider than the list you send.

object

mode

Applies to the rules you declare yourself. Where the key’s policy declares the same rule, the stricter of the two modes wins; the policy’s own categories keep the mode the administrator set.

string

Allowed values: alert mask block

entity_types

Unioned with the categories of the key’s policy, never narrowing them.

Array<string>

report_scope

Which messages’ findings come back to you. Narrowing it does not narrow the scan: every message is still scanned, and the block decision counts every finding.

string

default: all

Allowed values: all last_message latest_user_message

stop_words

Values that are a finding on their own, whatever the categories say. Unioned with the key’s policy.

Array<object>

object

value

required

string

match

string

default: exact

Allowed values: exact fuzzy

allowlist

Exceptions, matched on the whole value only. They reach your own rules only: an exception never lifts a finding raised by a rule of the key’s policy. Within your own config a stop word beats an exception on the same value.

Array<object>

object

value

required

string

match

Exact only. A substring exception would exempt every lookalike containing it.

string

default: exact

Allowed values: exact

regexes

Named patterns, run by RE2. Unioned with the key’s policy.

Array<object>

object

name

required

string

pattern

required

string

injected_context_names

Marks a message as inserted by the platform rather than typed by a person, by the value of its name field, and takes it out of the scan. Ignored while a policy applies to your key: on this path the same caller supplies both the marker and the content, so it would be a way to opt out of the check.

Array<string>

acknowledged

Reserved, and currently changes nothing: alert reports the findings and forwards the request, so there is no hold to confirm.

boolean

Responses

200

Model response.

application/json

object

string

type

string

Allowed value: message

role

string

Allowed value: assistant

model

string

stop_reason

string

Allowed values: end_turn max_tokens stop_sequence tool_use

content

Array<object>

object

type

string

Allowed value: text

text

string

usage

object

input_tokens

integer

output_tokens

integer

cache_read_input_tokens

integer

cache_creation_input_tokens

integer

Example

{
  "id": "gen-...",
  "type": "message",
  "role": "assistant",
  "model": "anthropic/claude-sonnet-4.6",
  "stop_reason": "end_turn",
  "content": [
    {
      "type": "text",
      "text": "Paris"
    }
  ],
  "usage": {
    "input_tokens": 16,
    "output_tokens": 4,
    "cache_read_input_tokens": 0,
    "cache_creation_input_tokens": 0
  }
}

400

Invalid request (Anthropic format). Includes unsupported-feature rejections.

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Example

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "Invalid request"
  }
}

401

Missing or invalid API key (Anthropic format).

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Example

{
  "type": "error",
  "error": {
    "type": "authentication_error",
    "message": "x-api-key or Authorization: Bearer header required"
  }
}

402

Rate limited or insufficient credits (Anthropic format).

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Example

{
  "type": "error",
  "error": {
    "type": "rate_limit_error",
    "message": "Rate limit exceeded"
  }
}

403

Request blocked by an access policy or by DLP (Anthropic format). One permission_error covers both, so branch on error.code.

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Examples

Model not allowed for this group

{
  "type": "error",
  "error": {
    "type": "permission_error",
    "code": "policy_violation",
    "message": "Model not allowed for this group"
  }
}

Sensitive data detected in block mode

{
  "type": "error",
  "error": {
    "type": "permission_error",
    "code": "dlp_violation",
    "message": "Request blocked: sensitive data detected",
    "details": {
      "dlp": [
        {
          "category": "pii",
          "entity_type": "EMAIL",
          "message_index": 0,
          "location": "messages[0].content",
          "start": 12,
          "end": 28,
          "confidence": 0.98
        }
      ],
      "findings_count": 1,
      "block_scope": "in_report_scope"
    }
  }
}

404

Model not found (Anthropic format).

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Example

{
  "type": "error",
  "error": {
    "type": "not_found_error",
    "message": "Model does not exist in the catalog"
  }
}

408

Internal error (Anthropic format).

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Example

{
  "type": "error",
  "error": {
    "type": "api_error",
    "message": "Internal error"
  }
}

413

Request body or an attachment exceeds the limit (Anthropic format).

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Example

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "Request body too large"
  }
}

422

Request failed validation (Anthropic format).

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Example

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "message": "Invalid request"
  }
}

429

Rate limited or insufficient credits (Anthropic format).

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Example

{
  "type": "error",
  "error": {
    "type": "rate_limit_error",
    "message": "Rate limit exceeded"
  }
}

502

Internal error (Anthropic format).

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Example

{
  "type": "error",
  "error": {
    "type": "api_error",
    "message": "Internal error"
  }
}

503

Temporarily unavailable (Anthropic format). dlp_policy_unavailable arrives as api_error, the type a client retries by the standard, and carries Retry-After. dlp_unavailable arrives as invalid_request_error, because a retry never fixes it.

application/json

Anthropic-format error envelope (used by /v1/messages).

object

type

string

Allowed value: error

error

object

type

string

code

Machine-readable code, same value as error.code in the OpenAI format. Several causes share one Anthropic type, so branch on this.

string

message

string

details

Additional error data; fields depend on the code.

object

key

additional properties

any

Examples

DLP policy could not be resolved (retryable)

{
  "type": "error",
  "error": {
    "type": "api_error",
    "code": "dlp_policy_unavailable",
    "message": "DLP policy is temporarily unavailable; retry the request"
  }
}

plugins.dlp sent where DLP is not enforced

{
  "type": "error",
  "error": {
    "type": "invalid_request_error",
    "code": "dlp_unavailable",
    "message": "DLP plugin config was provided, but router DLP enforcement is disabled"
  }
}

Headers

Retry-After

integer

Seconds to wait before retrying.

Create message

Authorizations

Request Bodyrequired

Responses

200

Example

400

Example

401

Example

402

Example

403

Examples

404

Example

408

Example

413

Example

422

Example

429

Example

502

Example

503

Examples

Headers

Request Body^required