openrouter-cost-controls

Implement cost controls for OpenRouter API usage. Use when setting budgets, preventing overspend, or managing per-key limits. Triggers: 'openrouter budget', 'openrouter cost limit', 'openrouter spending', 'control openrouter cost'.

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Repository: jeremylongshore/tons-of-skills-marketplace
Letzte Quellaktivität: 19. August 2026 um 12:13
Erkannte Sprache von SKILL.md: Englisch
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Forks: 392

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npx skills add https://github.com/jeremylongshore/tons-of-skills-marketplace --skill openrouter-cost-controls

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OpenRouter Cost Controls

Overview

OpenRouter provides per-key credit limits, a credit balance API, and per-generation cost queries. Combined with client-side budget middleware, you can enforce hard spending caps at the key level and soft caps in your application. This skill covers key-level limits, per-request cost tracking, budget enforcement middleware, and alert systems.

Prerequisites

An OpenRouter API key (sk-or-v1-...) exported as OPENROUTER_API_KEY — see the openrouter-install-auth skill for setup

Python 3.8+ with the OpenAI SDK and requests; Node.js 18+ for the TypeScript per-request cost logger in the references

curl, jq, and bc for the balance check and the Budget Alert Script

An OpenRouter management key exported as OPENROUTER_MGMT_KEY if you provision per-key credit limits via POST /api/v1/keys

Instructions

Query GET /api/v1/auth/key per Check Credit Balance to see credits used, the key's limit, remaining balance, free-tier status, and rate limit.

Provision scoped keys per Per-Key Credit Limits — POST /api/v1/keys with a dollar limit (e.g. $50 for backend-prod) using the management key, then list keys to review usage against limits per service.

Deploy the BudgetEnforcer from Budget Enforcement Middleware: check_budget() rejects any request whose pre-flight estimate exceeds the per-request or daily cap, and record_cost() books the exact spend from GET /api/v1/generation?id=.

Cut unit cost with Cost-Saving Model Variants: :floor picks the cheapest provider, :free costs nothing where available, and the task-based ROUTING table sends classification to gpt-4o-mini and simple Q&A to Llama 3.1 8B.

Schedule the Budget Alert Script (cron) so a balance drop below the threshold fires an alert to Slack or PagerDuty.

Set max_tokens on every request and enable auto-topup per Enterprise Considerations to cap completion cost without risking an outage.

Check Credit Balance

# Current balance and limits curl -s https://openrouter.ai/api/v1/auth/key \ -H "Authorization: Bearer " | jq

OpenRouter Cost Controls

Overview

Prerequisites

An OpenRouter API key (sk-or-v1-...) exported as OPENROUTER_API_KEY — see the openrouter-install-auth skill for setup

Python 3.8+ with the OpenAI SDK and requests; Node.js 18+ for the TypeScript per-request cost logger in the references

curl, jq, and bc for the balance check and the Budget Alert Script

An OpenRouter management key exported as OPENROUTER_MGMT_KEY if you provision per-key credit limits via POST /api/v1/keys

Instructions

Query GET /api/v1/auth/key per Check Credit Balance to see credits used, the key's limit, remaining balance, free-tier status, and rate limit.

Schedule the Budget Alert Script (cron) so a balance drop below the threshold fires an alert to Slack or PagerDuty.

Set max_tokens on every request and enable auto-topup per Enterprise Considerations to cap completion cost without risking an outage.

Check Credit Balance

# Current balance and limits curl -s https://openrouter.ai/api/v1/auth/key \ -H "Authorization: Bearer " | jq

import os, time, requests from openai import OpenAI client = OpenAI( base_url="https://openrouter.ai/api/v1", api_key=os.environ["OPENROUTER_API_KEY"], default_headers={"HTTP-Referer": "https://my-app.com", "X-Title": "my-app"}, ) class BudgetEnforcer: """Client-side budget enforcement with server-side cost verification.""" def __init__(self, daily_limit: float = 10.0, per_request_limit: float = 0.50): self.daily_limit = daily_limit self.per_request_limit = per_request_limit self._daily_spend = 0.0 self._day = time.strftime("%Y-%m-%d") def _reset_if_new_day(self): today = time.strftime("%Y-%m-%d") if today != self._day: self._daily_spend = 0.0 self._day = today def estimate_cost(self, model: str, prompt_tokens: int, max_tokens: int) -> float: """Pre-flight cost estimate using cached pricing.""" # Representative rates (fetch from /models in production) RATES = { "anthropic/claude-3.5-sonnet": (3.0, 15.0), # per 1M tokens "openai/gpt-4o": (2.50, 10.0), "openai/gpt-4o-mini": (0.15, 0.60), "meta-llama/llama-3.1-8b-instruct": (0.06, 0.06), } prompt_rate, comp_rate = RATES.get(model, (3.0, 15.0)) return (prompt_tokens * prompt_rate / 1_000_000) + (max_tokens * comp_rate / 1_000_000) def check_budget(self, model: str, prompt_tokens: int, max_tokens: int): """Raise if request would exceed budget.""" self._reset_if_new_day() estimated = self.estimate_cost(model, prompt_tokens, max_tokens) if estimated > self.per_request_limit: raise ValueError( f"Request estimated at ${estimated:.4f} exceeds per-request limit ${self.per_request_limit}" ) if self._daily_spend + estimated > self.daily_limit: raise ValueError( f"Daily spend ${self._daily_spend:.4f} + request ${estimated:.4f} " f"exceeds daily limit ${self.daily_limit}" ) def record_cost(self, generation_id: str): """Record actual cost from generation endpoint.""" try: gen = requests.get( f"https://openrouter.ai/api/v1/generation?id={generation_id}", headers={"Authorization": f"Bearer {os.environ['OPENROUTER_API_KEY']}"}, timeout=5, ).json() cost = float(gen.get("data", {}).get("total_cost", 0)) self._daily_spend += cost return cost except Exception: return 0.0 budget = BudgetEnforcer(daily_limit=25.0, per_request_limit=1.0)

name	openrouter-cost-controls
description	Implement cost controls for OpenRouter API usage. Use when setting budgets, preventing overspend, or managing per-key limits. Triggers: 'openrouter budget', 'openrouter cost limit', 'openrouter spending', 'control openrouter cost'.
allowed-tools	Read, Write, Edit, Grep, Bash(python3:), Bash(node:), Bash(curl:), Bash(jq:), Bash(bc:*)
version	1.20.0
license	MIT
author	Jeremy Longshore <jeremy@intentsolutions.io>
tags	["saas","openrouter","cost-optimization","budgets"]
compatibility	Designed for Claude Code

name	openrouter-cost-controls
description	Implement cost controls for OpenRouter API usage. Use when setting budgets, preventing overspend, or managing per-key limits. Triggers: 'openrouter budget', 'openrouter cost limit', 'openrouter spending', 'control openrouter cost'.
allowed-tools	Read, Write, Edit, Grep, Bash(python3:), Bash(node:), Bash(curl:), Bash(jq:), Bash(bc:*)
version	1.20.0
license	MIT
author	Jeremy Longshore <jeremy@intentsolutions.io>
tags	["saas","openrouter","cost-optimization","budgets"]
compatibility	Designed for Claude Code

Error	Cause	Fix
402 Payment Required	Credits exhausted	Top up at openrouter.ai/credits or use `:free` model
402 Key limit reached	Per-key credit limit hit	Increase key limit or create new key
Budget middleware rejects	Client-side limit exceeded	Increase limit or optimize prompt tokens
Stale pricing data	Cached rates outdated	Refresh from `/api/v1/models` daily

openrouter-cost-controls

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