Agent payments infrastructure

Where AI agents pay for APIs and sellers earn per call

Search and discover paid APIs through OpenDexter. Settle payments instantly through the Facilitator. Get intelligent next-step recommendations through Instinct. All via MCP, all in USDC, all on-chain.

  • Automatic refunds on failed calls
  • Most permissive facilitator — highest limits, lowest cost, sponsored gas
  • On-chain reputation — know who you're paying
Connect your agentList your APIDocs
Live settlement across supported chains
SolanaSolanaBaseBasePolygonPolygonAvalancheAvalancheArbitrumArbitrumOptimismOptimismBSCBSCSKALESKALE
Access from any agent surface
ChatGPTChatGPT
ClaudeClaude
TelegramTelegram
AlexaAlexa
MCPMCP
Scroll to explore
settlement

The only free facilitator in x402

Every other payment processor in the ecosystem charges fees. Dexter settles payments for free to capture the market. The more transactions that flow through, the more data Dexter sees about which APIs work, which agents need what, and where the money moves. Settlement is not the business. Settlement is the distribution strategy.

AI AgentRequests paid API
402Payment Required
DexterVerify, sign, settle, sponsor gas
VerifiedSigned receipt attached
DataResponse delivered
$0
Gas fees for buyers and sellers
< ms
Settlement confirmation
Signed receipt with every settlement

One API call costs one transaction. A hundred calls still cost one

Dexter manages payment sessions. An agent opens a session, makes as many API calls as it needs, and Dexter signs a voucher for each one instantly. Nothing hits the chain until the session closes. One settlement for the whole thing.

MPP on SolanaWhy both protocols
MPP SessionsLive
discovery

Already inside your agent

OpenDexter is the quality-verified index of every paid API in the x402 ecosystem. Tested, scored, and continuously monitored with real payments. Install it and your agent gains economic capability.

works in
ClaudeClaude
ChatGPTChatGPT
CursorCursor
MCPMCP
+ any MCP client
Dexteropendexter
Install OpenDexterBrowse APIs
recommendations

Every settlement carries what to call next

Instinct is the ad network embedded in x402 settlement receipts. Sellers pay to recommend their API to agents who just did something relevant. Every impression is tied to a real on-chain transaction.

Settlement Receipt
ENDPOINTjupiter/v6/quote
AMOUNT$0.02
CHAINSolanaSolana
For agents

The next tool is already in the settlement response. No searching. Fewer steps. Faster workflows.

For sellers

Pay to reach agents who just did something relevant to your API. Every impression backed by an on-chain settlement.

Built on the open sponsored-access x402 extension. Any facilitator can adopt it.

intelligence

We see every payment on the network

x402gle indexes every facilitator, every resource, every chain in real time. Who is paying who, for what, how often, and whether the response was any good. The most comprehensive dataset on agent commerce that exists.

Coming soon
x402gle
24h
by volume
#FacilitatorTxnsVolume
Loadingloading

Settlement. Discovery. Instinct. Open and integrated.

Start building with pay-per-call payments, MCP marketplace, and on-chain settlement — or list your API and start earning today.

Connect your agentList your API