Matt Lenhard went straight to the source to map the gray market for AI inference credits — emailing the brokers, browsing the marketplace sites, and lurking in Telegram channels. What he found is a maturing secondary market where API credits from Anthropic, OpenAI, and Google trade at 30-80% off list price.
The mechanics are worth understanding:
- Brokers buy unused credits from startups (YC grants, over-provisioned accounts, dead projects) and resell them through proxy forwarding layers — not raw API keys
- One broker offered $100k/day in spend capacity; marketplace sites like AI Credits and AICreditMart formalize the process with seller onboarding workflows
- “Bulk discount” routers (CheapCredits, Tokvana, Neokens) claim 40% flat discounts across all models — Lenhard suspects these are credit brokers posing as wholesalers
- Underground channels on Telegram and Reddit host active listings, and total estimated supply runs into the tens of millions of dollars
The essay’s real contribution is showing how far the arbitrage has scaled. AI tokens have become a de facto currency with formal market infrastructure — broker sites, data processing agreements, seller dashboards, commission structures. That’s a signal that the API pricing premium for on-demand access is large enough to sustain a middleman economy.
Lenhard expects crackdowns as providers and enterprise customers wake up to the abuse surface. The piece is a useful companion to the relay-market security discussion — same ecosystem, different angle.