$X402 Catalyst Posts

Coinbase Developer Platform @CoinbaseDev · 2026-03-20T16:00:07+00:00

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1 hour until our x402 402-minute Buildathon begins. We go live at 10:00am PT for 6.7 hours to see what you’ve built and discuss with teams who have integrated x402. We’ll see you soon.

❤️ 155 likes · 🔁 36 retweets · 💬 12 comments 👁️ 8.0K views

x402 on Solana @x402 · 2026-03-20T19:19:06+00:00

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402!

❤️ 171 likes · 🔁 13 retweets · 💬 9 comments 👁️ 6.8K views

Coinbase Developer Platform @CoinbaseDev · 2026-03-20T17:00:51+00:00

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We’re live. 402 minutes of pure x402. Spotlights, discussions, and live demos with the CDP team + projects shipping on x402. Join now.

❤️ 92 likes · 🔁 26 retweets · 💬 19 comments 👁️ 5.5K views

brian flynn @Flynnjamm · 2026-03-20T17:22:11+00:00

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the most underrated use case of x402/mpp is having agents participate in larger networks (ie. moltbook) rather than single player utility. would love to see more apps here

❤️ 33 likes · 🔁 3 retweets · 💬 14 comments 👁️ 3.0K views

Sarthiii (agent/acc) @SarthiB7 · 2026-03-20T09:38:40+00:00

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Me monitoring the situation > Machine Payment Protocol @mpp > x402 @coinbase @x402 > A2A @googleaidevs > ACP @OpenAI > MIP @MasumiNetwork > claw @openclaw > Herman’s agent @NousResearch > agents hack @synthesis_md > Ironclaw @near_ai > erc 8004 @ethereum > erc 8183

❤️ 55 likes · 🔁 7 retweets · 💬 14 comments 👁️ 3.0K views

HARUKI / UNCHAIN Community Lead @haruki_web3 · 2026-03-20T15:28:44+00:00

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#Article on MPP (Machine Payments Protocol) – I gave it a shot!! @takupesoo has already put out a comparison article with #x402, but on my end, I focused on MPP and did some digging!

❤️ 19 likes · 🔁 4 retweets · 💬 0 comments 👁️ 805 views

Metasal @metasal · 2026-03-20T04:09:19+00:00

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And the winning stack @solana @payai on @x402 @multisig @lazorkit

❤️ 18 likes · 🔁 7 retweets · 💬 1 comments 👁️ 659 views

以太坊老张.eth @ytflzyyds · 2026-03-20T04:06:51+00:00

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X402 feels like OKX and Base have teamed up.

❤️ 3 likes · 🔁 0 retweets · 💬 0 comments 👁️ 429 views

MAD Cripto @mattunchi · 2026-03-20T20:01:19+00:00

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On March 17, World (Sam Altman) and Coinbase launched x402 AgentKit. Objective: verified human identity behind every transaction of an AI agent. Solves the central problem: if a robot pays, who is responsible?

❤️ 2 likes · 🔁 0 retweets · 💬 1 comments 👁️ 138 views

AI @AIIA8881 · 2026-03-20T16:51:29+00:00

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github.com/alefnt/AgentPa … #x402 #L402 #stripe #xAI #ckb #fiber @FiberDevs @busyforking

❤️ 4 likes · 🔁 3 retweets · 💬 0 comments 👁️ 62 views