AI discovery is broken. ChatGPT and Claude can’t find even *one* MCP server. Discovery is crucial, and it must be open. I want a Web of Agents, not an Agent App Store that can censor rivals and skim 30%. That's why I just spent 10 days in my cave building Agent0, an 8004-based SDK that makes open discovery & trust dead simple for devs and agents. 👇

Oct 31, 2025 · 3:04 PM UTC

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2 / Agent0 SDK abstracts ERC-8004 and makes it easy to: • Create/manage agents (1-line register), set wallets, choose trust models + x402 support • Advertise capabilities: publish MCP/A2A endpoints; auto-extract tools/skills • Permissionless global agent search by names, skills, tools, tasks, x402 • Build reputation: give/get verifiable feedback; query by rep • Public indexing (subgraph) across on-chain + IPFS All without gatekeepers/centralized MCP/agent catalogues. Full docs (50+ functions + examples): sdk.ag0.xyz/

Agent0 SDK

Python and TypeScript SDKs for agent portability, discovery and trust based on ERC-8004

sdk.ag0.xyz
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3 / Comes as: • Python & TypeScript SDKs • Public subgraph (Sepolia for now) Quick start&docs: sdk.ag0.xyz/3-examples/3-1-q… Install today: pip install agent0-sdk npm install agent0-sdk GitHub: github.com/agent0lab/agent0-… github.com/agent0lab/agent0-… github.com/agent0lab/subgrap…

GitHub - agent0lab/subgraph: A subgraph for indexing ERC-8004 protocol data

A subgraph for indexing ERC-8004 protocol data. Contribute to agent0lab/subgraph development by creating an account on GitHub.

github.com
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4 / Help wanted! Agent0 is • Alpha, not production ready yet. Please test & file issues. • MIT licensed public good from me with the help of @Consensys, 🦊 @MetaMask, and Agent0, Inc. I'm seeking co-maintainers. If you or your org can help, DM me 🙏 Go, go, go! 🚀
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Replying to @marco_derossi
The lack of accessible public MCP servers is a real hurdle, and it’s great you’re calling it out. Your honesty about the challenge—and the effort to find a solution—resonates. The absence of a straightforward endpoint does highlight a gap in open AI discovery. Excited to see how Agent0 addresses this with its open SDK approach! Looking forward to testing it out
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Let us know which features we should add!
Replying to @marco_derossi
Yo, congrats on Agent0 Marco! We at @HeyElsaAI are also diggin open agent netwrks,would defs love to explore Interop around with your SDK and swap some wild usecases. DM if you wanna to cross collab.
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Replying to @marco_derossi
Congrats on the release, @marco_derossi!
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Replying to @marco_derossi
Happy to work on making our registry available. We support public MCP servers powered by x402
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Replying to @marco_derossi
love this. plugging our agent factory into this next to go idea → deploy → discover → trust in one flow.
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Replying to @marco_derossi
congrats marco! this is amazing
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Replying to @marco_derossi
@ETHPanda_Org @LXDAO_Official please help to spread
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Replying to @marco_derossi
Amazing work Marco! We will build a LLM research / Trading Agent Marketplace with your SDK as well as the onchain data infrastructure of @MeetHubble . Looking forward to meeting you at Buenos Aires during Devconnect!
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Replying to @marco_derossi
Completely agree, Marco. That's why we've built exactly that 1 year ago with @MasumiNetwork! Live today. Including a decentralized marketplace on top.
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Replying to @marco_derossi
You are absolutely right
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Replying to @marco_derossi
Amazing work!
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Replying to @marco_derossi
So cool!
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Replying to @marco_derossi
i think the main issue lies in how mcp is used: > should users manually browse and install from the mcp panel, > or should it support automatic discovery and installation directly through the chat interface? i’ve always believed the second approach is much more user friendly. the so called security concern is just an excuse. i really don’t understand what these ai products are thinking. as for agent0, i think it would be far more meaningful to provide an sdk that allows clients like manus and claude to safely enable these capabilities, since most mainstream users are on those platforms anyway.
Replying to @marco_derossi
this is huge
Replying to @marco_derossi
Great work @marco_derossi Will see how we can leverage it in @TheKodeusLabs
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Replying to @marco_derossi
I can only imagine the frustration, and then the work you put into this. really appreciate the effort, keep it up Marco
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Replying to @marco_derossi
Huge congrats Marco!! Another massive unlock for open agent discovery. Proud to be building alongside you on this frontier.
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Replying to @marco_derossi
🐐
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Replying to @marco_derossi
building a foundation for the big things just like that 💅
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Replying to @marco_derossi
open discovery isn’t optional champ, it’s the only way the agent web scales without choke points
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Replying to @marco_derossi
amazing , would love to connect , check your dms
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Replying to @marco_derossi
finally some real sauce
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Replying to @marco_derossi
Will have a play 🫡
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Replying to @marco_derossi @binji_x
when discovery is locked behind closed doors, the whole system feels like a black hole sucking in potential. open discovery isn’t just a feature, it’s the warp drive for any decentralized future worth building.
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Replying to @marco_derossi
Love this. The more open SDKs around 8004, the faster the agent layer takes shape. Great work @marco_derossi. This will accelerate a lot of builds.
Replying to @marco_derossi
Open agent discovery is the next frontier, and projects like Agent0 could keep AI ecosystems truly decentralized.
Replying to @marco_derossi
Your cave time was worth it!
Replying to @marco_derossi
big fella, Agent0 proves it
Replying to @marco_derossi
Unlocks true agent mesh.
Replying to @marco_derossi
open discovery is the only way forward man. this is huge
Replying to @marco_derossi
Great job Marco!
Replying to @marco_derossi
Real shift
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