Ethereum Attestation Service
Open-source attestation infrastructure for signing and verifying structured data, with contracts, a TypeScript SDK and a CLI aimed at agents.
- ChainsEthereum, Multichain
Ethereum Attestation Service is an open-source developer tool by Ethereum Attestation Service on Ethereum, with no code activity tracked.
Check what an install would ask of your keys, before you run it →No code activity tracked
Listed from attest.org on 2026-10-14. Install: not attempted — no install path on record. Not checked by Sato Hub yet: every row below is as listed. Evidence →
Next step
Watch Ethereum Attestation Service
One email if what we observe changes — its repo goes quiet or disappears, or the listing is retired. Nothing else.
Check it from your agent
Add Sato Hub’s MCP server (no key), then ask:
https://satohub.ai/api/mcpRun Sato Hub Preflight on ethereum-attestation-service/eas-sdk before I use it.Your project?
Prove you control the domain and correct this page — description, links, tags, chains. A claim proves control, not verification: it never changes the Sato Score.
Claim this listing →Overview
EAS lets anyone register a schema and attest with it, publishing to a blockchain or keeping attestations offchain and verifiable on demand. The project ships MIT-licensed contracts and a TypeScript SDK, and its site highlights a CLI for agents. An attestation shows who made a claim, not that the claim is true.
Evidence — listed vs checked · what the words mean
Listed from attest.org on 2026-10-14. Install: not attempted — no install path on record. Not checked by Sato Hub yet: every row below is as listed.
| Claim | Value | Evidence | Source | Checked |
|---|---|---|---|---|
| Chains supported | Ethereum, Multichain | self-reported | docs.attest.org | as of 2026-10-14 |
| Verification status | Self-Reported — not independently reviewed | self-reported | attest.org | as of 2026-10-14 |
Self-reported rows are the project’s own words, dated when we recorded them — not a check. Only reproduced and reviewed rows carry a mark. None of these rows is a safety or quality rating.
Details
- Chains
- Ethereum, Multichain
- Agent types
- Attestation
- Open source
- Yes
- Pricing
- Free to use per attest.org; onchain gas applies for onchain attestations.
- Last checked
- 2026-10-14
Marketplace Signals
No marketplace signals recorded for this resource yet.
Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.
Where Ethereum Attestation Service fits
Related concepts: What Are Onchain Agents?, Onchain Agents vs Offchain Agents
Listing History
Recorded changes to Ethereum Attestation Service's listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.
- Oct 14, 2026Listed on Sato Hub
Compared with
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Reference
QuestionsWhat people ask about this pageShowHide
Questions people ask about Ethereum Attestation Service
- Is Ethereum Attestation Service open source?
- Yes. Ethereum Attestation Service is open source; the repository is https://github.com/ethereum-attestation-service/eas-sdk. Checked as of 2026-10-14.
- Which chains does Ethereum Attestation Service support?
- Ethereum Attestation Service lists support for Ethereum, Multichain as of 2026-10-14.
- Is Ethereum Attestation Service still maintained?
- Sato Hub tracks no commit or release for Ethereum Attestation Service; it cannot say whether it is maintained.
- How do I install or run Ethereum Attestation Service?
- Sato Hub has no deploy spec for Ethereum Attestation Service; follow the project's own documentation at https://docs.attest.org/docs/welcome.
- Is Ethereum Attestation Service verified on Sato Hub?
- No independent verification is on record for Ethereum Attestation Service; its verification status is "Self-Reported". Self-reported is not verified, and the score is not a safety, quality or returns grade.
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Cite this page
Sato Hub. "Ethereum Attestation Service — Sato Hub." Sato Hub, updated 2026-10-14, accessed 2026-10-14. https://satohub.ai/resources/ethereum-attestation-serviceData last refreshed 2026-10-14; this page is rebuilt daily. Citations carry the date so a reader can tell which snapshot a claim came from. Catalog data is licensed CC-BY-4.0.
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