ryan gentryCEO of Bitcoin Infrastructure Acquisition Corp. index 402. This listing will act as a bridge. This enables synthetic intelligence (AI) agent builders to find operational cost APIs, and permits suppliers to checklist their APIs. endpoint To achieve visibility.
As Gentry reported on March 22, the primary results had been quick. In simply 72 hours, the variety of suppliers who verified their presence within the index elevated by 26%, and listing consultations elevated by 50 occasions (though the underlying numbers weren’t specified). Plus, over 100 new endpoint instantly.
Contemplating these outcomes, brian armstrongCoinbase’s CEO gave enthusiastic help, saying, “Nice job!”
and the final cease A selected handle to ship information requests to. Earlier than this index, there was no centralized registry that reported in actual time which entry factors required cost or whether or not they had been lively.
To accommodate this development, the Index 402 group has applied a server replace that enables the AI agent to autonomously question the listing itself. This enchancment is Reduces computational useful resource consumption by 85%. Gentry additionally introduced that the approval course of for brand spanking new registrations will quickly be 100% automated.
Formally introduced as the primary software of its form on March 19, the 402 Index is already Has over 15,000 lively entry factorsavailability is checked hourly.
Information from index 402
Once we surveyed these 15,000 individuals, endpointthe index revealed extra data. At present, three totally different requirements coexist for cost processing between AI brokers, however none dominates the market.
- L402was developed by Lightning Labs on the Bitcoin Lightning Community in 2019 and leads by way of high quality: 43% endpoint Index well being checks move.
- x402was launched by Coinbase in 2025 and has the most important focus of lively suppliers.
- MPPready by the businesses Stripe and Tempo.
All three share a typical root. HTTP code 402 has been reserved in Web protocols because the Nineties underneath the outline “Cost Required,” nevertheless it was by no means formally applied as a result of there was no digital foreign money to help it.
Every of the above requirements makes use of 402 codes because the technical foundation for requiring cost earlier than permitting entry to a service.
This battle has concrete outcomes. Every customary implies a distinct cost infrastructure. L402 runs on the Lightning Community, whereas x402 and MPP run on different layers.
The requirements imposed might subsequently decide which networks between AI brokers carry out automated funds, and whereas there are not any dominant purposes but on this market, corporations resembling Anthropic and Stripe have already got a place.
L402 and Lightning: Tasks already in manufacturing
The 402 Index maps the ecosystem, however two initiatives reported by CriptoNoticias They’re already engaged on L402 with AI brokers and Lightning Community (LN) Bitcoin.
On February twelfth, Lightning Labs launched an open supply toolset to allow AI brokers Pay, gather, and authenticate utilizing Bitcoin with no checking account or conventional API keys.
The core is precisely L402. When an agent tries to entry an API protected by that customary, the service responds with a 402 code and a Lightning bill. Brokers pay their payments and obtain cryptographic credentials that act as entry credentials, with none prior registration or person necessities.
To cut back the danger of giving financial entry to autonomous brokers, Lightning Labs provides distant signing (the non-public secret’s saved on a separate gadget) and restricted credentials that restrict the sum of money brokers can spend and the operations they’ll carry out.
A earlier effort reported by CriptoNoticias on January 31 follows the same logic. The Lightning Allow group launched one other open supply software that connects AI brokers to Lightning wallets by way of the Nostr Pockets Join (NWC) protocol. It’s a decentralized communication customary that establishes the hyperlink between brokers and wallets with out intermediaries.
This Lightning Labs software permits builders to You possibly can set a most spending price range– As soon as the allotted steadiness is exhausted, the agent will now not be capable to robotically make funds. Funds are restricted to Lightning BOLT11 addresses, an bill format that features the recipient’s signature and a set quantity, stopping funds to unauthorized recipients or quantities aside from the set quantity. This software can also be constructed on L402.
Each tasks intention for a similar mannequin. Because of this AI brokers will autonomously pay for digital companies in pennies or cents, with none human intervention in every transaction. On this context, the 402 Index serves as a primary map of a area that’s nonetheless taking form.

