Comparison
BlockRun vs OpenRouter
Both are AI gateways with one OpenAI-compatible endpoint in front of many providers. The big difference is how you pay and who's on the other end of the wire.
August 2026
On 19 August 2026 Stripe announced an agreement to acquire OpenRouter. The price was not disclosed; Bloomberg reported it at more than $7 billion. OpenRouter remains an excellent product, and we mention the deal because it settles a question about the category: a payments company buying the model-routing layer says routing and payment belong together. That is the bet BlockRun was built on — settlement is part of the request, not a billing system bolted on beside it. One consequence for anyone choosing a gateway: OpenRouter is joining a payments company, while BlockRun is owned by no model maker and no payment network, and its router is open source.
Side-by-side
| Feature | BlockRun | OpenRouter |
|---|---|---|
| Billing model | Pay-per-call USDC over x402; no balance to top up | Prepaid credits; top up before you call |
| Auth | Wallet signature per call (no account) | API key (signup + email required) |
| Markup | None on chat tokens (provider rates); 5% on media | 5.5% on credit purchases (5% for crypto) |
| Fixed fee | $0.001 per call | $0.80 minimum per credit purchase |
| Float | None — funds stay in your wallet | Credit balance held on the platform |
| Settlement | Settled on-chain; tx hash returned with the response | Off-chain billing; CSV exports |
| Settlement chains | Base and Solana | Not applicable — fiat and crypto both buy credits |
| Free tier without signup | Yes, no card or signup | Free models capped per day; account required |
| Model count | 105, each live-tested before listing | 400+ across 70+ providers |
| Beyond text | Chat, image, video, music, speech — plus web search, market data, prediction markets, DEX quotes, multi-chain RPC, code sandboxes, phone and voice | Chat, image, audio and video input, image generation, speech |
| Auto-fallback on model failure | Yes, surfaced via X-Fallback-Model header | Optional via SDK route fallback |
| Provider routing control | Ours to decide; no caller-side provider controls | Caller can set provider order, allow/deny and sort |
| BlockRun MCP | Yes (19 tools incl. wallet) | No native MCP |
When to choose BlockRun
- You're building autonomous AI agents that can't hold credit cards.
- You want zero signup friction — “just try it” without accounts.
- You need on-chain settlement receipts (compliance, accounting, agent-to-agent payments).
- You need data + media + compute APIs alongside chat models.
- You're using MCP-compatible clients (Claude Code, Cursor, ChatGPT Desktop).
When to choose OpenRouter
- You're a human developer comfortable with API keys + dashboard billing.
- You want the broadest possible LLM catalog — 400+ models, and new ones often land there first.
- You want to control provider routing yourself (order, allow/deny, sort by price or throughput).
- You want to bring your own provider keys.
- You don't need stablecoin settlement or per-call wallet auth.
- Your workflow is fine with a prepaid credit balance.
One thing we should say plainly
A few models in our catalog reach us through OpenRouter as a wholesale supplier, the same way a shop can stock a competitor's distribution. It doesn't change what you pay or how you pay it, and most of our catalog connects to the model maker or a cloud provider directly — but we'd rather you hear it here than discover it and wonder what else we left out.
The bottom line
OpenRouter is built for human developers who manage API keys and prepaid credits, and it has far more models than we do. BlockRun is built for autonomous agents that pay per call from a wallet — no account to create, no balance to keep topped up, and a transaction hash returned with every response. If a person is going to sit in front of a dashboard, OpenRouter is the easier tool. If software has to authorize its own spending, that dashboard is the thing standing in the way.
The catalog gap is real and we're not going to paper over it. We test every model with live calls before listing it, which is slower than mirroring someone else's catalog — and it's why the pricing and output limits you see here are the ones you actually get.
We list facts as we know them at publish time and will update if OpenRouter ships changes. If something here is wrong, email hello@blockrun.ai and we'll fix it.
Try it without signing up
There is no account to create. Point your OpenAI-compatible client at BlockRun and the first free-tier call works immediately; paid calls settle from your wallet.