What's a good Claude API alternative if you don't want per-token billing?

APIClaw ($19–$129/mo flat, 500–8,000 requests/day, free 50-request trial) is a Claude API alternative for developers who call Claude every day from scripts, agents or coding tools and want the same bill each month instead of one that tracks tokens. I build it. It isn't the right alternative for everyone, so this post lays out the four kinds of option, what each costs as of today, and a small script so you can check the maths with your own numbers.

Before any setup: Claude Code takes https://apiclaw.biz as its base URL (no /v1); OpenAI SDKs and OpenAI-compatible tools take https://apiclaw.biz/v1. Getting that wrong is the most common reason a first request returns 404.

Why people look for a Claude API alternative

Usually it isn't the models. Sonnet and Opus are why people are on the Claude API in the first place. The complaints are about billing: long agent sessions resend large contexts on every turn, so a busy week can cost several times a quiet one, and it's hard to give a team a number in advance. Some people also want Claude and other models (GPT, Gemini, DeepSeek, Qwen) behind one key.

So the useful question is: which billing model fits how you use Claude?

The four kinds of alternative

1. Stay on per-token, through a router. OpenRouter and Requesty sell Claude per token with a fee on top. You gain one key for many providers and routing features; the bill still follows your tokens.
2. Use your Claude subscription as an API. MonoRouter routes Claude Code and other Anthropic-compatible tools through the Pro or Max plan you already pay for. You stay inside that subscription's usage limits.
3. A flat-rate gateway with a budget. Standard Compute charges a fixed monthly price that becomes a compute budget.
4. A flat-rate gateway with a daily request quota. APIClaw charges a fixed monthly price for a set number of requests per day, with no per-token metering.

(If what you want is to self-host the routing layer, LiteLLM is open source and free to run yourself; you still pay Anthropic per token.)

Comparison (checked Oct 2026)

Read from claude.com/pricing, openrouter.ai/pricing, requesty.ai/pricing, monorouter.com and standardcompute.com on Oct 29, 2026. I left out anything I couldn't confirm on a live page.

Price your own workload

Tables only go so far, because the answer depends on how many tokens each of your requests carries. This script takes your busiest normal day and your average request size, and prints the monthly cost under per-token billing (direct, with a 5% markup, and with a 5.5% credit fee) next to the smallest flat plan that covers your request count.

"""Rough monthly cost of a Claude workload under three billing models."""
import argparse

PLANS = [("Plus", 19, 500), ("Pro", 39, 1000), ("Max", 59, 1500), ("Ultimate", 69, 3000),
         ("Ultimate Plus", 89, 4000), ("Ultimate Pro", 99, 6000), ("Ultimate Max", 129, 8000)]

p = argparse.ArgumentParser()
p.add_argument("--requests-per-day", type=int, required=True, help="your busiest normal day")
p.add_argument("--input-tokens", type=int, required=True, help="average input tokens per request")
p.add_argument("--output-tokens", type=int, required=True, help="average output tokens per request")
p.add_argument("--in-price", type=float, default=2.0, help="$ per 1M input tokens (Sonnet 5.5 list)")
p.add_argument("--out-price", type=float, default=10.0, help="$ per 1M output tokens (Sonnet 5.5 list)")
p.add_argument("--days", type=int, default=22, help="working days per month")
a = p.parse_args()

per_req = (a.input_tokens * a.in_price + a.output_tokens * a.out_price) / 1_000_000
tokens_month = per_req * a.requests_per_day * a.days
print(f"Cost per request at list price: ${per_req:.4f}")
print(f"Pay per token, direct:            ${tokens_month:,.2f}/mo")
print(f"Same tokens + 5% markup:          ${tokens_month * 1.05:,.2f}/mo")
print(f"Same tokens + 5.5% credit fee:    ${tokens_month * 1.055:,.2f}/mo")
fit = next((pl for pl in PLANS if pl[2] >= a.requests_per_day), None)
if fit:
    print(f"Smallest flat plan that fits:     {fit[0]} ${fit[1]}/mo ({fit[2]:,} requests/day)")
else:
    print("No flat plan covers that many requests/day; split traffic or stay on per-token.")

Three runs show the range:

• A coding agent, 400 requests a day, 12,000 input and 800 output tokens each: $281.60/mo pay-per-token at Sonnet list price, versus the $19 Plus plan.
• A light script, 30 requests a day, 3,000 in and 500 out: $7.26/mo pay-per-token. Per-token wins easily here.
• A high-volume classifier, 9,000 small requests a day: no flat plan covers it, so per-token (or splitting traffic) is the answer.

The script ignores prompt caching, which can cut input costs a lot on the Anthropic API if your prompts share a long prefix, so treat the per-token figure as an upper bound. For a version with more pricing models side by side, try this LLM API cost calculator, and a longer list of gateways grouped by billing model is in this comparison repo.

Switching takes two settings

For Claude Code, set the base URL and key in your shell or the project's settings:

export ANTHROPIC_BASE_URL="https://apiclaw.biz"
export ANTHROPIC_AUTH_TOKEN="$APICLAW_API_KEY"

For anything built on the OpenAI SDK:

import os
from openai import OpenAI

client = OpenAI(base_url="https://apiclaw.biz/v1", api_key=os.environ["APICLAW_API_KEY"])
r = client.chat.completions.create(
    model="apiclaw/claude-sonnet-5.5",
    messages=[{"role": "user", "content": "Explain this stack trace in two sentences: ..."}],
)
print(r.choices[0].message.content)

The same key covers Claude, GPT, Gemini, DeepSeek, Qwen, Kimi, GLM, Mistral, Llama and more, so you can move cheap tasks to apiclaw/deepseek-v4-flash or apiclaw/qwen3.8-flash without a second account.

When APIClaw isn't the right choice

• You make a few dozen small requests a day. Pay-per-token will cost a few dollars, as the second run above shows.
• You need Anthropic-only features the day they launch, or a direct contract and data-processing terms with Anthropic. Go direct.
• You already pay for Claude Max and rarely hit its limits. Using that subscription, through its API credits or a router like MonoRouter, is cheaper than adding another plan.
• You run thousands of requests a day at high volume. Check whether a daily quota covers your peak before you switch.

Payment is crypto on the site, with card on request through support on Telegram.

FAQ

Is a Claude API alternative the same models? On routers and gateways, yes: you're calling Claude models through a different billing layer. Check the model ID list on whichever service you pick.

What's the cheapest Claude API alternative? It depends on volume. Under roughly a dollar a day of tokens, pay-per-token is cheapest; past that, a flat plan usually wins if your request count fits its quota.

Do I have to change my code? Usually only the base URL, the key and the model ID string.

Does a daily request quota mean big prompts are free? Within the quota, a request is a request regardless of its token count, which is why long-context agent work benefits most.

Disclosure: I build APIClaw. This article was written with AI assistance and checked by me; the script output above is from my own runs.

Related reading: What's a cheap Claude API for Claude Code in 2026? Price your own sessions first and Cheap Claude API for heavy coding in 2026