Home/ Incident database/replit-auto-billing-loop-2026-02
Financial loss API cost spike verified

Replit subscription credits hit 100% on an undeployed prototype; auto-billing invoices $60 beyond the plan

Replit (community forum) · Feb 12, 2026 · Coding agent

What happened

A February 12, 2026 Replit community forum post reported monthly credits completely exhausted (100% used) by agent work on a React + MongoDB prototype that was never deployed publicly. A reply documented the auto-billing mechanic: once the included $25 credits are exhausted, usage continues and generates a new bill invoiced every $60. The user's only intended actions were running the app locally and making small changes.

Loss / impact
Feb 12
2026
API
Failure mode
Coding
Agent type

Causal vector

Auto-renewing pay-as-you-go invoices keep metering an agent whose credit pool is already empty, with no stop condition on the spend

Source

Reported by Replit Community Forum - 'Replit Credits Exhausted' (2026-02-12). Verified against the primary report.

Read the original report ↗

How a spend firewall would have helped

A spend policy must live outside the platform that profits from exceeding it. An external hard cap on agent spend makes the auto-invoice impossible: the agent stops when the budget stops, not when a human notices the charge.

The six rule types that contain this class of failure

Per-transaction cap

Any single spend above your ceiling is BLOCKED before it moves.

Daily total

Cumulative spend across all agent calls, bounded per day.

Velocity limit

Stops runaway retry loops — the #1 cause of overnight losses.

Merchant allowlist

Only approved destinations can ever receive funds.

Category rules

Flag high-risk classes (crypto, infra, refunds) for review.

Approval threshold

Above a value, the action waits for a human.

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