Mayumi | FRAME00 (@yume_mayu) — Twitter Score 3 out of 1000

Mayumi is a software entrepreneur and protocol builder who co-founded FRAME00, Inc. and leads it as CEO. Mayumi's Twitter Score is 3.3 out of 1000 as of July 2026, ranking #240,429 among 531,432 tracked accounts.

Mayumi founded Dev Protocol, an open-source blockchain protocol that uses the DEV token to enable staking and rewards for creators and their supporters. Dev Protocol publicly released its protocol on January 31, 2020, and in December 2021 received the Northeast Asia Open Source Software Outstanding Technologies Project Award. Mayumi previously worked at Dev Null AG as CEO.

Mayumi co-founded FRAME00, Inc., which completed a pre-Series A financing round in 2022 with participation from investors including MIRAISE, gmjp, B Dash Ventures, SKY Perfect JSAT, rikka, and 01Booster Capital. SKY Perfect JSAT took an equity stake in FRAME00 and entered a business-alliance agreement covering Web3-related media and entertainment. Mayumi is also affiliated with the Japan DeFi Alliance.

Mayumi is currently building Lemma, described as a trust layer handling AI judgment, permissions, and audit trails, with support for x402 and MCP protocols. Mayumi has been active on Twitter since 2007, with 11,168 posts published to date. Mayumi has been mentioned by 8 accounts, with 20 total mentions.

Who follows Mayumi on X?

The accounts that follow Mayumi include 22 founders, 6 angel investors, 5 influencers and 1 VCs. Among them are Owockai, leighcuen.substack.com, Notscottmoore, Griff Green - griff.eth, Dave McClure and Brad Laurie.