attest.org valid
Ethereum Attestation Service (EAS)
Sign and verify data about anything. Open-source attestation infrastructure for developers and AI agents — no API keys, public good, multi-chain.
- Authority
- 47 reach 6 · trust 10 · quality 16 · freshness 15
- Tier
- listed
- llms.txt
- https://attest.org/llms.txt
- Sections
- 2
- Links
- 0
- Size
- 1175 bytes
- Popularity rank
- #727107
- Registered
- 2024-03-23
- Country
- United States Hosting inference
- Hosting country
- United States Hosting inference
- Country evidence
- No published address evidence collected yet
- Categories
- AI and machine learning
- For agents
- Informational: content or services for people, nothing to operate
- First seen
- 2026-10-25T17:55:27.077Z
- Last checked
- 2026-10-27T11:08:02.860Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-25T23:51:50.132Z. Cached copy · Source on attest.org
# Ethereum Attestation Service (EAS)
> Sign and verify data about anything. Open-source attestation infrastructure for developers and AI agents — no API keys, public good, multi-chain.
## What EAS is
EAS is open infrastructure for making structured data verifiable. You define a schema, sign an attestation against it, and anyone can verify it onchain or offchain. It is built for developers and for machines: AI evals, model runs, and agent actions can be signed by the machine that produced them, so others can rely on the output.
Common uses: machine-signed outputs, authenticity of documents and files, reputation systems, real-world asset verification, private proofs, data oracles, ticketing, voting, proof-of-X, and portable KYC/credentials.
Principles: open source, public good, zero API keys, Ethereum-native, multi-chain (Arbitrum, Base, Celo, Ethereum, Linea, OP Mainnet, Polygon, Scroll, and more).
## Links
- Site: https://attest.org
- GitHub: https://github.com/ethereum-attestation-service
- SDK (TypeScript/JS): https://github.com/ethereum-attestation-service/eas-sdk
- CLI (built for agents): https://github.com/ethereum-attestation-service/eas-cli
Related sites
Similar publisher descriptions and documentation. Similarity does not imply affiliation or equivalent capabilities.
| Domain | Title | Category | Country | Authority | llms.txt | llms-full.txt | Save |
|---|---|---|---|---|---|---|---|
| geeq.io | Geeq | documentation Cybersecurity Crypto and Web3 | PL | 46 | ✓ | ||
| proof.com | Proof for AI agents | documentation AI and machine learning Authentication and identity +1 | US | 53 | ✓ | ||
| agent-passport.org | APS | documentation AI and machine learning Cybersecurity +1 | — | 46 | ✓ | ✓ | |
| signicat.com | Signicat | documentation Cybersecurity Authentication and identity | — | 61 | ✓ | ||
| trstd.com | #trstd | documentation Cybersecurity Authentication and identity | DE | 59 | ✓ | ||
| chainit.com | ChainIT | interface AI and machine learning Cybersecurity +1 | US | 46 | ✓ | ||
| aeoess.com | AEOESS | documentation AI agents and MCP Authentication and identity | — | 50 | ✓ | ✓ | |
| validationcloud.io | Validation Cloud | interface Infrastructure APIs and SDKs +1 | US | 49 | ✓ |
Machine-readable: GET /v1/resolve?q=attest.org · GET /v1/domain/attest.org · this page as Accept: application/json or text/markdown · MCP lookup_domain
Automatically discovered from public files. Inclusion does not imply endorsement or publisher participation.
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1. POST https://agentwebmap.com/v1/sites/attest.org/claims and keep claim_id and claim_secret private.
2. Publish the verification line "AgentWebMap verification: <token>" (token from step 1) in https://attest.org/llms.txt, or use the DNS, meta-tag or well-known method the response describes. This only verifies the listing; your website and domain remain yours.
3. POST https://agentwebmap.com/v1/sites/attest.org/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/attest.org).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verifyCorrections or removal requests: contact the directory.