Significant-Gravitas/AutoGPT · error · InsufficientBalanceError
str(e)
Error message
str(e)
What it means
This is the HTTP 402 detail produced when `charge_for_direct_block_execution` raises `InsufficientBalanceError`: `str(e)` carries the billing message (typically the required credit amount vs. remaining balance). Direct external block executions are metered upfront; if the user's credit balance can't cover the block's cost, the request fails with Payment Required before execution.
Source
Thrown at autogpt_platform/backend/backend/api/external/v1/routes.py:117
# consistent with chat / internal block / internal graph routes.
await enforce_payment_paywall(auth.user_id)
obj = backend.blocks.get_block(block_id)
if not obj:
raise HTTPException(status_code=404, detail=f"Block #{block_id} not found.")
if obj.disabled:
raise HTTPException(status_code=403, detail=f"Block #{block_id} is disabled.")
user = await user_db.get_user_by_id(auth.user_id)
if not user:
raise HTTPException(status_code=404, detail="User not found.")
try:
await charge_for_direct_block_execution(
user_id=auth.user_id, block=obj, input_data=data, source="external"
)
except InsufficientBalanceError as e:
raise HTTPException(
status_code=status.HTTP_402_PAYMENT_REQUIRED, detail=str(e)
) from e
# Direct block execution has no graph; build a minimal ExecutionContext
# carrying the caller's identity + timezone so blocks that depend on
# those (e.g. time blocks) get correct data.
execution_context = ExecutionContext(
user_id=auth.user_id,
user_timezone=get_user_timezone_or_utc(user.timezone),
)
output = defaultdict(list)
async for name, data in obj.execute(data, execution_context=execution_context):
output[name].append(data)
return output
@v1_router.post(View on GitHub (pinned to 9c8bb5550f)
Solutions
- Top up the user's credit balance in the platform, then retry the execution.
- Switch the block/model configuration to a cheaper option to fit the current balance.
- Monitor balance via the platform's user/credit endpoints and alert before it hits zero for unattended automations.
Example fix
# before
POST /blocks/{llm_block_id}/execute # 402 {"detail": "Insufficient balance: need 10, have 2"}
# after: top up credits, then retry
POST /blocks/{llm_block_id}/execute # 200 Defensive patterns
Strategy: try-catch
Validate before calling
balance = client.get("/users/me/credits").json()["balance"]
if balance < estimated_block_cost(block_id):
raise InsufficientCredits(f"need ~{estimated_block_cost(block_id)}, have {balance}") Try / catch
try:
client.post(f"/blocks/{block_id}/execute", json=data)
except HTTPError as e:
if e.response.status_code == 402:
top_up_credits(min_amount=parse_needed(e.response.text))
client.post(f"/blocks/{block_id}/execute", json=data) # retry after top-up
else:
raise Prevention
- Monitor credit balance and set low-balance alerts for unattended automations.
- Estimate per-run cost from block pricing and pre-check balance before executing.
- Treat HTTP 402 as a retryable-after-topup condition, distinct from 4xx client errors.
When it happens
Trigger: POST `/blocks/{block_id}/execute` when the API key owner's credit balance is lower than the execution cost of the block (LLM blocks, metered API blocks).
Common situations: Exhausted free-tier credits on a hosted deployment; long-running automation draining balance mid-run; new expensive model selected on a block raising per-run cost.
Related errors
- Rate limit reset is not available (credit system is disabled
- Insufficient credits to reset your rate limit.
- Insufficient balance of ${current_balance / 100}, where this
- str(e)
- Copy failed: ${res.status}
AI-assisted analysis of Significant-Gravitas/AutoGPT@9c8bb5550f (2026-08-14).
Data as JSON: /api/errors/ede78343f747e992.
Report an issue: GitHub.