Don't want to trade it yourself?
Our desk runs DEX portfolios on profit share.
OpenRouter meters AI usage against prepaid deposits and charges 5% on crypto top-ups against 5.5% on card purchases made through Stripe. Stripe co-incubated Tempo to settle machine payments onchain; the chain is running at about one transaction per second.
By:The Defiant Team•
TradFi & Fintech
Stripe has finalized an agreement to buy AI model gateway OpenRouter for more than $7 billion, Bloomberg reported Sunday, citing people familiar with the matter. Neither company has announced the deal, and a Stripe spokesperson told TechCrunch the company does not comment on rumors or speculation.
The purchase would put one of the largest marketplaces for AI inference inside a company that owns a stablecoin issuer, a wallet provider and a co-authored protocol for machines to pay each other onchain. OpenRouter reached that scale using none of it. It bills through a prepaid credit balance held on its own books, and charges less to top that balance up in crypto than in card payments processed by Stripe.
One Deposit, Millions Of Calls
“Credits are simply deposits on OpenRouter that you use for LLM inference,” the company’s FAQ says. Users fund a balance, and OpenRouter deducts the cost of each request from it. Accounts that run negative get an HTTP 402 error until they top up again.
That design does off-chain what the Machine Payments Protocol and x402 do onchain: meter fractions of a cent per API call without settling each one individually. The settlement event at OpenRouter is the deposit, not the request. A developer spending $2,000 across millions of inference calls generates one payment.
OpenRouter takes no markup on inference. “We charge a small fee when purchasing credits. We never mark-up the pricing of the underlying providers, and you’ll always pay the same as the provider’s listed price,” the FAQ says. The fee is 5.5% with an $0.80 minimum on purchases through Stripe, and 5% on crypto. Its support page lists accepted methods as “Major credit cards, AliPay, and USDC crypto,” with crypto purchases non-refundable.
One Transaction Per Second
Tempo, the payments chain Stripe incubated with Paradigm and launched on mainnet in March, recorded 80,388 transactions over 24 hours or slightly under one per second. A sample of 300 consecutive blocks pulled from Tempo’s public RPC endpoint on Monday returned 140 transactions across 168 seconds, at an average block time of 0.56 seconds
Chain fees on Tempo totaled $5.34 over 24 hours, $38.27 over seven days and $620.09 over 30 days, per DefiLlama. Total value locked is $38.79 million and stablecoin supply on the chain is $53.12 million. Morpho Blue is the largest protocol on the chain with $30.38 million locked. Tempo’s nightly benchmark, a load test it runs against its own node software, posted 18,083 settled transactions per second on Monday under its public TIP-20 scenario.
Those numbers sit against what Stripe’s founders wrote in the company’s 2025 annual letter in February. “In our view, agents will most likely soon be responsible for most internet transactions, and we will likely need blockchains that support more than one million—or even one billion—transactions per second,” Patrick and John Collison wrote. The same letter opened its crypto section with “It may be a crypto winter, but it’s a stablecoin summer,” noting stablecoin payments volume doubled to around $400 billion in 2025 and that Bridge, the issuer Stripe bought, “saw volume more than quadruple.”
Two Hundred Trillion Tokens
OpenRouter routes API requests across competing model providers through a single endpoint. Its published figures measure tokens rather than payments. Weekly volume grew from 5 trillion to 25 trillion tokens in the six months to May, the company said when it raised a $113 million Series B led by CapitalG, Alphabet’s independent growth fund, with NVIDIA’s NVentures, ServiceNow Ventures, Snowflake Ventures, Databricks Ventures and MongoDB Ventures among others participating. It said then it was “on pace to process over a quadrillion tokens this year.”
OpenRouter’s homepage on Monday listed 200 trillion monthly tokens, 10 million users, more than 80 providers and more than 500 models. Reports of the deal put the Series B valuation at $1.3 billion, which would make the Stripe price roughly a five-fold markup in under three months; OpenRouter’s own announcement disclosed no valuation. Co-founder and CEO Alex Atallah was previously co-founder and CTO of NFT marketplace OpenSea.
The programmatic version of OpenRouter’s crypto flow is gone. Its documentation says “Coinbase deprecated the APIs used by this flow, so POST /api/v1/credits/coinbase has been removed and now returns 410 Gone,” and directs users to a web checkout. OpenRouter is not listed among the members of the x402 Foundation, the HTTP 402 payment standard Coinbase moved to the Linux Foundation in April. Stripe is a premier member.
Every Layer, One Owner
Stripe completed its Bridge acquisition in February 2025 and now uses it to issue stablecoins for third parties through Open Issuance, whose customers include Phantom, MetaMask and Hyperliquid’s USDH. It bought wallet provider Privy in June 2025, a business the annual letter said “powers more than 110 million programmable wallets.” It co-authored the Machine Payments Protocol with Tempo and shipped it alongside mainnet in March. Deel uses all three to issue DLUSD, a custom dollar stablecoin, for 1.5 million contractors across 150 countries.
Stripe’s machine payments documentation lists three rails for agent settlement: MPP on Tempo in USDC.e, MPP on Solana in USDC, and x402 on Base in USDC. Tempo is listed first. The minimum crypto payment is one cent, against 50 cents for a card.
Adding OpenRouter would give Stripe the merchant as well as the rails. Neither company has said whether the two get connected, and OpenRouter’s deposit model does not require a chain to work. The deal also puts a payments company in charge of a router that sits between developers and model providers including Anthropic and OpenAI, both named as Tempo partners when the chain went to mainnet in March. OpenRouter’s pitch to developers has been neutrality across vendors.
The Customer Becomes The Company
OpenRouter was already a Stripe customer. A Jan. 29 Stripe case study described it using Stripe Invoicing, Stripe Tax and Radar to bill more than 5 million developers, and quoted Atallah saying “Stripe handles payment complexity in an elegant way so we can focus on making AI models accessible and high-quality for developers everywhere.” Six and a half months later Stripe is reported to be buying the account for more than $7 billion.
Rivals have spent the year building onchain versions of the same metering. Cloudflare launched stablecoin wallets for agents on Aug. 4, five weeks after opening a waitlist for an x402 monetization gateway, and Amazon wired agent payments into Bedrock AgentCore in May using Coinbase rails and Privy wallets. Mastercard opened its card rails to agents in June with more than 30 launch partners.
Stablecoins in circulation total $300.7 billion, with Tether’s USDT at $182.98 billion and Circle’s USDC at $71.94 billion, per DefiLlama. Tempo’s $53.12 million is 0.02% of that. Businesses running on Stripe generated $1.9 trillion in total volume last year, and the company was valued at $159 billion in a February tender offer.
Our articles are stored on Filecoin.
Get an edge in Crypto with our free daily newsletter
Know what matters in Crypto and Web3 with The Defiant Daily newsletter, Mon to Fri
90k+ Defiers informed every day. Unsubscribe anytime.
Source: thedefiant.io