Block joins the x402 Foundation and contributes Bitcoin Lightning support
Block joined the x402 Foundation and added Bitcoin Lightning to the HTTP 402 payment standard, announced on September 24, giving AI agents a low-cost rail for small payments.
Why it matters
The volume behind the standard is small: Crypto.News puts the last thirty days at $24.24 million across 75.41 million transactions, and Bitcoin.com News says USDC carried 99.3 percent of it, so Lightning enters a protocol that has run almost entirely on a stablecoin. Block's own statement commits it to further Lightning work and to the foundation's working groups, which puts one of the larger Bitcoin payment companies inside the group that maintains the standard.
Where the sources disagree
Description of the x402 Foundation
Linux Foundation-governed payment group
Crypto.News
open standard for agentic payments
TheNewsCrypto
Crypto.News calls it a Linux Foundation-governed payment group, while TheNewsCrypto describes the foundation as an open standard for agentic payments and gives no governance detail.
Key facts
Block joined the x402 Foundation and contributed Bitcoin Lightning support to the protocol.
Reported by Crypto.News
Block announced the move on September 24.
Reported by Crypto.News
A September 23 commit in the x402 repository records 'exact Lightning on lnbtc' using the lnbtc network identifier specification.
Reported by Crypto.News
The x402 Foundation reported $24.24 million in volume over thirty days.
24,240,000 USDReported by Crypto.News
The x402 Foundation reported 75.41 million transactions over thirty days.
75,410,000 transactionsReported by Crypto.News
x402 began inside Coinbase and settles payments through HTTP 402 'Payment Required' responses.
Reported by Crypto.News
What happened
Block, the payments company led by Jack Dorsey, announced on September 24 that it had joined the x402 Foundation and contributed Bitcoin Lightning support to the open payment protocol. Crypto.News, TheNewsCrypto and Bitcoin.com News all describe x402 as a standard built on the HTTP 402 'Payment Required' response, which lets a server demand payment before returning a paid API, dataset or digital service, and Crypto.News and Bitcoin.com News both place the protocol's origin inside Coinbase. Crypto.News reports a September 23 commit in the project's public repository recording 'exact Lightning on lnbtc' under the lnbtc network identifier specification, a day before Block disclosed its participation, while Bitcoin.com News gives September 24 as the integration date. The same Crypto.News report says the x402 Foundation counted 75.41 million transactions and $24.24 million in volume over thirty days and that the foundation is governed by the Linux Foundation, a governance detail TheNewsCrypto does not mention and instead calls the foundation an open standard for agentic payments. Bitcoin.com News, which cites no measurement period, says Circle's USDC previously handled 99.3 percent of x402 volume and that agents can now spend one satoshi to buy API data instantly. Block said Lightning suits transactions needing low cost, fast settlement and repeated small payments, the category it calls 'agentic commerce', and said it plans continued Lightning contributions while bringing its payments experience into the foundation's working groups.
How the story developed
- Update
Lightning support appears in the x402 public repository
A commit records 'exact Lightning on lnbtc' under the lnbtc network identifier specification, before Block made any public statement.
- Official statement
Block announces x402 Foundation membership and its Lightning contribution
Block says Lightning fits the low-cost, fast-settling, small payments it expects in what it calls 'agentic commerce'.
- First report
First report by Crypto.News
Jack Dorsey’s Block joins x402 with Lightning support
- Official statement
Official statement from Bitcoin.com News
Jack Dorsey’s Block Brings Lightning Network to x402
- Update
Bitcoin.com News adds the stablecoin share of x402 volume
Reports that Circle's USDC previously handled 99.3 percent of x402 volume and that agents can spend one satoshi for API data, with no stated measurement period.
How coverage built up
Independent sources over time, counted the way the consensus panel counts them: a republication of a wire story does not move the line.
- 25 Sept 2026, 05:25 UTC: Crypto.News — 1 independent source, 1 reports
- 25 Sept 2026, 06:24 UTC: TheNewsCrypto — 2 independent sources, 2 reports
- 26 Sept 2026, 16:38 UTC: Bitcoin.com News, official — 3 independent sources, 3 reports
Affected entities
Also mentioned: XRP, Base, Visa, Ripple, Cardano, Mastercard
Original sources
| Publisher | Report | Role | Published |
|---|---|---|---|
| Bitcoin.com News Company, official | Jack Dorsey’s Block Brings Lightning Network to x402 | Independent | |
| Crypto.News Crypto media | Jack Dorsey’s Block joins x402 with Lightning support | Original | |
| TheNewsCrypto Crypto media | Jack Dorsey’s Block Joins x402 Foundation to Bring Bitcoin Lightning to AI Payments | Syndicated |
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