Subscriptions reset with limits left over. Subflip pools that unused capacity from Claude, Codex, Kimi and other plans. You get the same tools for a fraction of API rates, and the plan owners get paid.
AI coding subscriptions charge a flat fee for limits that reset every few hours and every week. Weekends, meetings and quiet sprints leave most of those limits unused, and they expire at reset.
Other developers hit their cap on a Tuesday afternoon, and their only option is API pricing at several times the cost for the same model.
You pay for a full plan but use a fraction of it. Whatever is left at reset simply disappears.
Share the leftover limits and get paid for them. Your subscription pays for itself.
You code with AI a few days a month. A monthly plan is wasted money, and pay-as-you-go API rates hurt.
Top up only when you need it and pay subscription-level prices per token. No plan, no commitment.
Mid-sprint, your plan runs dry. It’s either stop working for hours or switch to expensive API billing.
Keep going on other people’s spare capacity at subscription prices, then switch back to your own plan after the reset.
API pricing charges full metered rates for every token. A subscription costs much less per token, but only if the whole limit gets used. Subflip sells capacity that would otherwise expire, at close to the subscription's cost per token.
Blended at 3:1 input:output: API $8.00 vs Subflip $1.60 / 1M tokens. API: Anthropic list price for Claude Opus 5.5, standard tier (source). Subflip: sample marketplace rate.
Sellers connect subscriptions they don't fully use. Buyers top up a balance. Subflip routes each request to a plan with spare capacity and meters the usage. Buyers pay less than API rates, and sellers get paid for limits that would have expired.
Prepay any amount. Your balance is priced at subscription rates, and you're never billed past it.
Point Claude Code, Codex, Kimi Code or any OpenAI/Anthropic-compatible client at your Subflip endpoint.
Each request goes to a plan with spare capacity. Usage is metered per token and shown on your dashboard.
# one-time setup
$ export ANTHROPIC_BASE_URL=https://api.subflip.ai/claude
$ export ANTHROPIC_API_KEY=sf_live_••••••••••••
$ claude --model claude-opus-5-5
✓ connected · routed via subscription pool · $1.60 / 1MConnect the tools you already pay for, choose how much capacity to share and when to share it, and get paid for every token a buyer uses. When you need your plan, your own usage always comes first.
Sign in with the regular Claude, Codex, Kimi or other tool auth. No API keys needed.
Cap what you share per day or week, set quiet hours, and pause any time.
Buyers draw on your spare capacity, and earnings go to your payout balance.
Sellers set hard caps. Subflip stops routing to a plan before it reaches the owner's reserve.
Seller auth is stored encrypted and only used to serve metered requests. Revoke it with one click.
Buyers only spend what they have loaded. No overage and no surprise invoices.
Every request is logged per token for both sides, so buyers and sellers see the same numbers.
Subscriptions cost much less per token than metered API usage, provided the full limit gets used. Subflip sells capacity that would otherwise expire, so prices follow subscription cost instead of API list prices.
Any client that accepts a custom base URL for OpenAI- or Anthropic-compatible APIs: Claude Code, Codex CLI, Kimi Code, OpenCode, Cline, Aider, and others.
No. You choose what share of your unused limit to offer, and "Pause when I'm active" stops routing to your plan while you work.
Earnings build up per token served and are paid out on a regular schedule once they pass the minimum threshold.
Requests go to the next plan with free capacity for the same model. If none is available, you get a clear error, and you are never silently charged API rates.
Buy tokens, sell your limits, or both. Setup takes about a minute.