x402 + smol402: Building the Decentralized AI Agent Economy on Polkadot

Sun Jan 25 2026

5.00

A piece on the long-forgotten HTTP 402 Payment Required status code, now powered by Polkadot. Built by Parity’s Head of Product Engineering Karim Jedda, smol402 eliminates centralized facilitators, RPC providers & API keys by embedding a lightweight Polkadot client https://x.com/savvyonchain/status/2013929113120133215

Links

🔗 Discord 🔗 Original Content

Reactions

WRITTEN BY

Savvy λ

Visit Author Page

More from this author

What most people missed in Bifrost's 2025 annual report.

Savvy λ·January 3, 2026

What most people missed in Bifrost's 2025 annual report.

This post provides a technical summary of bifrost’s 2025 annual report, focusing on measurable outcomes rather than narrative framing. https://x.com/savvyonchain/status/2007436875737272711

Savvy λ·December 25, 2025

Building the Next Killer App on

Revive launches Jan 20 on Polkadot with dual-VM architecture. I broke down the killer dApp opportunities in gaming, DePIN, and RWA and why Revive outcompetes Eth L2s and Solana. https://x.com/savvyonchain/status/2003714478228054312

How Sig Network Revolutionizes Defi Reach on Polkadot

Savvy λ·December 13, 2025

How Sig Network Revolutionizes Defi Reach on Polkadot

This content explores how Sig Network is transforming the blockchain landscape by enabling seamless cross-chain interactions on Polkadot https://x.com/savvyonchain/status/1999162814456340505

X402 Smol402 Building The Decentralized Ai Agent Economy On Polkadot