---
title: "Fund Wallet"
method: POST
path: "/v1/agents/{agent_id}/wallet/fund"
tags: ["v1", "protected", "wallet"]
---

# Fund Wallet

`POST /v1/agents/{agent_id}/wallet/fund`

Update the service budget amount.

## Path parameters

- `agent_id` string, uuid, required

## Request body

- FundWalletRequest
  - `service_budget_usd` number, required

## Response `200`

Successful Response

- WalletResponse
  - `agent_id` string, required
  - `created_at` string, nullable
  - `has_credentials` boolean
  - `id` string, required
  - `mpp_config` object, nullable
  - `service_budget_period` string, required
  - `service_budget_usd` number, required
  - `status` string, required
  - `updated_at` string, nullable
  - `wallet_type` string, required
  - `x402_config` object, nullable

## Other responses

- `422` — Validation Error

## Changes

- **2026-07-08** `8940d7f77282` — 2 breaking
  - the `created_at/anyOf[subschema #1]/` response's property type/format changed from `string`/`date-time` to `string`/`` for status `200`
  - the `updated_at/anyOf[subschema #1]/` response's property type/format changed from `string`/`date-time` to `string`/`` for status `200`

[Change history](https://skmtc.dev/agentarea/apis/agentarea-api/changes/v1/agents/:agent_id/wallet/fund/post.md)

---

[API](https://skmtc.dev/agentarea/apis/agentarea-api.md) · [All operations](https://skmtc.dev/agentarea/apis/agentarea-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/agentarea/agentarea-api/revisions/99cf61829c55/schema)