The infrastructure for x402. Turn any API into a paid service. Monetize, monitor, and settle across chains.
0xdfd27c5c37766146c0e15225c296a6be8f3b44aastable402.devJoined October 2026
BlackRock’s (@BlackRock) digital assets research sketched what an agentic workflow looks like:
A person asks an agent to run an analysis. The agent scopes the job, pays a discovery service for live prices, then pays a provider for compute. The output comes back.
Two of those steps are machine-to-machine payments. No human in the loop, cents per call, settled in seconds.
That’s the rail Stable402 is built for. Every paid leg verified and settled over x402, on Solana, Base and Robinhood Chain.
→ stable402.dev/whitepaper
Selling to agents shouldn’t mean flying blind.
The Stable402 dashboard shows your x402 API live: revenue, paid calls, conversion and latency, refreshed every 10 seconds.
Every request is logged with its outcome, chain, amount and payer, so you know exactly who paid, where, and how much.
→ app.stable402.dev
One facilitator. Three chains.
StableFacilitator verifies and settles @x402 payments on @solana, @base and @RobinhoodApp. Any x402 server can point at it. We pay the gas and never hold funds.
2,084 settlements on mainnet so far, and every one is verifiable on-chain. Don’t trust us, check the explorer links.
→ facilitator.stable402.dev
→ stable402.dev/stats
Your agent shouldn’t need a human to find the tools it pays for.
StableBazaar is one feed of every paid API on Stable402: what it does, what it costs, and which chains it accepts. One request, no sign-up:
Every StableGateway merchant is listed automatically. Agents discover, compare and pay over x402, all in one loop.
→ stable402.dev/bazaar
x402 is the cheapest distribution channel an API can have in 2026.
Every agent that can pay becomes a potential customer. No sign-ups, no API keys, no credits to buy.
Stable402 gets you there in 2 minutes: paste your API, set a price per route, pick your chains. You get a paid x402 URL, and agents discover you on StableBazaar automatically.
No code. Free while in beta → app.stable402.dev
x402 = one of the most cost effective complementary GTM strat in 2026
What I like about x402 is that it is FREE distribution for projects & startups.
Normally, startups leverage MCP to connect with developers in their fav IDEs and APIs to power users (startups & enterprises
Stable402 is infrastructure for x402. StableFacilitator verifies and settles agent payments on Solana, Base and Robinhood Chain, and we pay the gas for every one.
Today that’s free. Next, the facilitator charges a small fee per settlement, so the public rail pays for itself and grows with usage.
$S402 plugs into that fee:
→ Pay facilitator fees in $S402 at a discount
→ Hold $S402 for lower fee tiers and a free settlement allowance
More agents paying for APIs means more settlements, and more settlements means more demand for the token that discounts them.
Utility rolls out with facilitator fees. Roadmap in the whitepaper → stable402.dev/whitepaper
Every merchant on StableGateway is automatically discoverable on our bazaar. No extra setup: go live and you’re listed.
Any agent can find every available service with one request: each endpoint, its price, and how to pay on Solana, Base or Robinhood Chain. Then it pays over x402 and gets the result, with no human in the middle.
People can browse too: every merchant has its own page with a ready-made prompt to hand to your agent.
First listed: StableMedia, with Nano Banana and Grok Imagine at $0.05 a call.
stable402.dev/bazaar
Visa just let AI agents pay B2B invoices.
That’s the buyer side. Agents also need the seller side: APIs they can find, pay and call on their own.
That’s what we’re building at stable402, infrastructure for @x402. The first piece of the stack is live:
StableGateway turns any
StableFacilitator is live.
Every x402 payment needs someone to check the signature and move the money onchain. Most API servers shouldn’t have to run that themselves.
So we built the settlement layer of stable402: point any x402 server at one URL and we verify, settle and pay the gas. Solana, Base and Robinhood Chain, straight from payer to merchant. We never hold funds. No API key, no sign-up.
Before launch we ran 2,001 real payments back to back on mainnet. Zero failures, one to two seconds each.
2,071 settlements so far, every one public with its transaction: stable402.dev/statsfacilitator.stable402.dev
Visa just let AI agents pay B2B invoices.
That’s the buyer side. Agents also need the seller side: APIs they can find, pay and call on their own.
That’s what we’re building at stable402, infrastructure for @x402. The first piece of the stack is live:
StableGateway turns any API into a paid service. Paste your endpoint, set a price, and agents pay per call in stablecoins, settled onchain on @solana, @base and @RobinhoodApp. No SDK, no code changes.
Our first merchant, StableMedia, is already selling Nano Banana and Grok Imagine per call.
stable402.dev
LATEST: 🤖 Visa launched a live agentic commerce pilot that lets AI agents initiate and help complete approved B2B invoice payments through supplier portals.
BlackRock’s agentic workflow has two x402 arrows: paid discovery and paying for compute.
stable402 is the layer underneath both. It verifies, settles and meters every paid call across @solana, @base and @RobinhoodApp.
Turn any API into a paid service. Coming soon.
AI is machine-native intelligence and crypto is machine-native money. Both AI and digital assets translate real-world inputs into formats machines can use. Our latest research looks at why that connection could become increasingly important as AI evolves. blackrock.com/us/individual/…
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