Update Spending Limits

curl -X PUT https://api.danubeai.com/v1/x402/settings \
  -H "danube-api-key: dk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "max_per_call_atomic": 2000000,
    "daily_limit_atomic": 10000000
  }'

import httpx

resp = httpx.put(
    "https://api.danubeai.com/v1/x402/settings",
    headers={"danube-api-key": "dk_..."},
    json={
        "max_per_call_atomic": 2000000,
        "daily_limit_atomic": 10000000
    }
)
settings = resp.json()
print(f"Max per call: ${settings['max_per_call_atomic'] / 1_000_000:.2f}")
print(f"Daily limit: ${settings['daily_limit_atomic'] / 1_000_000:.2f}")

const response = await fetch('https://api.danubeai.com/v1/x402/settings', {
  method: 'PUT',
  headers: {
    'danube-api-key': 'dk_your_api_key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    max_per_call_atomic: 2000000,
    daily_limit_atomic: 10000000
  })
});
const settings = await response.json();

{
  "id": "abc123",
  "user_id": "user-uuid",
  "max_per_call_atomic": 2000000,
  "daily_limit_atomic": 10000000,
  "created_at": "2026-02-01T00:00:00Z",
  "updated_at": "2026-02-24T12:00:00Z"
}

PUT

x402

settings

curl -X PUT https://api.danubeai.com/v1/x402/settings \
  -H "danube-api-key: dk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "max_per_call_atomic": 2000000,
    "daily_limit_atomic": 10000000
  }'

import httpx

resp = httpx.put(
    "https://api.danubeai.com/v1/x402/settings",
    headers={"danube-api-key": "dk_..."},
    json={
        "max_per_call_atomic": 2000000,
        "daily_limit_atomic": 10000000
    }
)
settings = resp.json()
print(f"Max per call: ${settings['max_per_call_atomic'] / 1_000_000:.2f}")
print(f"Daily limit: ${settings['daily_limit_atomic'] / 1_000_000:.2f}")

const response = await fetch('https://api.danubeai.com/v1/x402/settings', {
  method: 'PUT',
  headers: {
    'danube-api-key': 'dk_your_api_key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    max_per_call_atomic: 2000000,
    daily_limit_atomic: 10000000
  })
});
const settings = await response.json();

{
  "id": "abc123",
  "user_id": "user-uuid",
  "max_per_call_atomic": 2000000,
  "daily_limit_atomic": 10000000,
  "created_at": "2026-02-01T00:00:00Z",
  "updated_at": "2026-02-24T12:00:00Z"
}

Overview

Updates the user’s x402 spending limit configuration. Controls how much USDC can be spent on paid tool executions per call and per day. The platform enforces a hard cap of $5.00 (5,000,000 atomic units) per tool call. The max_per_call_atomic cannot exceed this value. Authentication: Requires JWT token or API key.

Body Parameters

max_per_call_atomic

integer

Maximum USDC per tool call in atomic units (6 decimals). Must be between 0 and 5,000,000. Default: 5,000,000 ($5.00).

daily_limit_atomic

integer | null

Daily spending limit in atomic units. Set to null to remove the daily limit. Must be >= 0.

Response

string

Settings record UUID.

user_id

string

The user’s UUID.

max_per_call_atomic

integer

Updated maximum USDC per tool call in atomic units.

daily_limit_atomic

integer | null

Updated daily spending limit in atomic units.

created_at

string

ISO 8601 timestamp.

updated_at

string

ISO 8601 timestamp of the update.

Example

curl -X PUT https://api.danubeai.com/v1/x402/settings \
  -H "danube-api-key: dk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
    "max_per_call_atomic": 2000000,
    "daily_limit_atomic": 10000000
  }'

import httpx

resp = httpx.put(
    "https://api.danubeai.com/v1/x402/settings",
    headers={"danube-api-key": "dk_..."},
    json={
        "max_per_call_atomic": 2000000,
        "daily_limit_atomic": 10000000
    }
)
settings = resp.json()
print(f"Max per call: ${settings['max_per_call_atomic'] / 1_000_000:.2f}")
print(f"Daily limit: ${settings['daily_limit_atomic'] / 1_000_000:.2f}")

const response = await fetch('https://api.danubeai.com/v1/x402/settings', {
  method: 'PUT',
  headers: {
    'danube-api-key': 'dk_your_api_key',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    max_per_call_atomic: 2000000,
    daily_limit_atomic: 10000000
  })
});
const settings = await response.json();

{
  "id": "abc123",
  "user_id": "user-uuid",
  "max_per_call_atomic": 2000000,
  "daily_limit_atomic": 10000000,
  "created_at": "2026-02-01T00:00:00Z",
  "updated_at": "2026-02-24T12:00:00Z"
}

MCP Tool

When using the Danube MCP Server, use the update_spending_limits tool:

update_spending_limits(max_per_call_usdc=2.0, daily_limit_usdc=10.0)

The MCP tool accepts human-readable USDC values (e.g., 2.0 = $2.00) and converts to atomic units internally. Set daily_limit_usdc to 0 to remove the daily limit.

Get Spending Limits Store Credential

​Overview

​Body Parameters

​Response

​Example

​MCP Tool

Overview

Body Parameters

Response

Example

MCP Tool