Control what your coding agents spend on LLMs.
BurnLens is a high-precision proxy deployed between your autonomous coding agents and the Claude API—enforcing programmable budgets, hard caps, and real-time cost isolation.
Silent budget drains in agentic loops
Autonomous coding agents operate in multi-turn recursion loops. A single runaway error, unconstrained diff retry, or prompt bloat can incinerate hundreds of dollars before human intervention.
Most engineering leads discover cost explosions only when the monthly Anthropic invoice arrives. BurnLens gives infrastructure leads instant circuit breakers at the packet level.
Transparent, zero-latency intercept
Integrate BurnLens in seconds without rewriting agent orchestration logic.
Point Endpoint
Redirect your agent’s base URL to the BurnLens gateway via standard environment variables (ANTHROPIC_BASE_URL).
Configure Caps
Define session quotas, monthly hard caps, and token limits per developer, task worker, or CI pipeline with zero configuration drift.
Circuit Breaker
Stream token counts in real time. Requests are safely halted with HTTP 429 before overrun charges reach your credit card.
export ANTHROPIC_BASE_URL="https://proxy.burnlens.sairintechnology.com/v1"
export BURNLENS_AGENT_ID="claude-code-worker-01"
# 2. Transparent authentication & session spend tracking
[BurnLens] Handshake OK: agent_id=claude-code-worker-01 (Spend: $14.82 / Cap: $15.00)
[BurnLens] Streaming tokens through Claude 3.7 Sonnet (0.1ms overhead)
# 3. Automatic hard stop when budget boundary is breached
[BurnLens] HTTP 429: Session budget ($15.00) reached. Connection terminated before upstream provider overrun.
Deep protocol compatibility
Built specifically for the exact streaming and tool-calling primitives of Claude models.
Proxies raw SSE streaming and tool execution schemas directly to Claude 3.5 & 3.7 Sonnet without tampering with payloads or token payloads.
Calculates exact Anthropic cache creation vs cache read pricing tiers, providing genuine line-item visibility for large repo contexts.
Streaming passthrough engine ensures zero perceived latency while your developers code, debug, and run automated refactor tests.
Secure early pilot access
Designed for engineering teams scaling Claude Code, Cursor, or autonomous task swarms.
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