ethereum-ecosystem

name

ethereum-ecosystem

description

Comprehensive map of Ethereum trust primitives Bastion orchestrates. Covers wallets (Safe, EOA, AA), identity (ERC-8004, ENS, A2A), payments (x402, Pact), attestations (EAS, Sign, zkTLS), shared trust (EigenLayer), oracles (Chainlink, Pyth), bridges (Across, LayerZero), indexing (The Graph, Blockscout MCP), agent platforms (Olas, Virtuals), and developer tooling (ethskills, Base MCP, Foundry, Scaffold-ETH 2). Use when building on Ethereum trust standards.

Ethereum Ecosystem Standards for Bastion

Bastion is the Programmable Trust Runtime — it orchestrates, not replaces, Ethereum's trust primitives. This skill maps every standard, protocol, and tool Bastion composes.

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1. Agent Identity & Reputation

ERC-8004 — Agent Identity Registry

Deployed: January 29, 2026. On 20+ chains. Same addresses everywhere.

• IdentityRegistry: 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
• ReputationRegistry: 0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
• ValidationRegistry: Crypto-economic, zkML, TEE attestation models
• Agent identity = ERC-721 NFT. Multi-dimensional reputation (uptime, quality, success rate).
• Resource: https://www.8004.org | https://eips.ethereum.org/EIPS/eip-8004

ERC-8126 — AI Agent Verification

Standardized verification results and risk scores consumed during policy evaluation.

• Resource: https://eips.ethereum.org/EIPS/eip-8126

ENS — Ethereum Name Service

Human-readable names for agent identities (agent.eth). Composable with ERC-8004.

• Resource: https://ens.domains

A2A — Agent-to-Agent Protocol (Google)

Standard for autonomous agent discovery and communication. ERC-8004's service registry maps A2A endpoints.

• Resource: https://github.com/google/A2A

Privado ID / Polygon ID — Decentralized Identity

Privacy-preserving identity for agents and users. VC-based claims (KYC, credentials).

• Resource: https://privado.id

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2. Wallets & Account Abstraction

ERC-4337 — Account Abstraction

UserOperations, bundlers, paymasters. EntryPoint v0.7: 0x0000000071727De22E5E9d8BAf0edAc6f37da032. Major implementations: Kernel (ZeroDev), Biconomy, Alchemy Account Kit, Pimlico.

ERC-7579 — Modular Smart Accounts

Validators, executors, hooks. Bastion's policy validator plugs as an ERC-7579 module.

EIP-7702 — Smart EOAs (Live May 2025)

EOAs get smart-contract delegation without migration. Batching, gas sponsorship, session keys. Still early for production agents — use standard EOAs or Safe until tooling matures.

Safe (Gnosis Safe) — Multisig Wallets

For AI agents: 2-of-3 Safe (agent hot wallet + human hot wallet + human cold wallet). If agent key is compromised, human removes it. Agent can batch transactions.

• Singleton: 0x41675C099F32341bf84BFc5382aF534df5C7461a (same on all chains)
• Resource: https://docs.safe.global

Coinbase Smart Wallet / Base Account

Embedded wallet with passkey auth. Used by Base MCP for agent wallets.

• Resource: https://www.smart-wallet.xyz

Privy — Embedded Wallets

Wallet infrastructure for apps. Embedded wallets, email/social login, user-owned accounts.

• Resource: https://privy.io

Dynamic — Wallet-Based Auth

Embedded wallets + multi-wallet auth + smart accounts.

• Resource: https://dynamic.xyz

wagmi / viem — Frontend Wallet Libraries

React hooks (wagmi) + low-level primitives (viem). The standard stack for EVM dApp frontends.

• Resource: https://wagmi.sh | https://viem.sh

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3. Payments & Settlement

x402 — HTTP Payment Protocol (Coinbase)

Production-ready HTTP 402 micropayments. Server returns 402 Payment Required → client pays via EIP-3009 → server settles onchain. Bastion's Web2 firewall proxies x402 calls.

• SDKs: @x402/core @x402/evm @x402/fetch @x402/express (TS) | pip install x402 (Python)
• Resource: https://www.x402.org

Pact Network — Payment Refunds

On-chain chargeback for x402. Solana mainnet program 5bCJcdWdKLJ7arrMVMFh3z99rQDxV785fnD9XGcr3xwc. Premium per call → refund (principal+premium) on API failure from USDC coverage pool.

• Resource: https://pactnetwork.io/docs

EIP-3009 — Transfer With Authorization

Gasless token transfers via signed authorizations. USDC implements it. Powers x402.

• Resource: https://eips.ethereum.org/EIPS/eip-3009

ERC-2612 — Permit (Gasless Approvals)

Gasless token approvals via signatures. Widely adopted across DeFi.

• Resource: https://eips.ethereum.org/EIPS/eip-2612

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4. Attestations & Provenance

EAS — Ethereum Attestation Service

On-chain attestation registry. Bastion stores execution approvals, compliance attestations, human approvals, and policy outcomes.

• Resource: https://attest.org

Sign Protocol — Cross-Chain Attestations

Portable trust records verifiable across ecosystems. Bastion emits Sign attestations for cross-chain trust.

• Resource: https://sign.global

zkTLS / Reclaim / zkPass — Verified Web Data

Cryptographic proofs of web API responses. Bastion uses verified data as policy inputs (e.g., "this agent has a verified GitHub org membership").

• Resource: https://reclaimprotocol.org | https://zkpass.org

Sigil — On-Chain Provenance

Verifiable records of agent actions and decisions.

• Resource: https://sigil.sh

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5. Shared Trust & Cryptoeconomic Security

EigenLayer — Restaking & AVS

Cryptoeconomic trust for verifiable services. Bastion coordinates workflows against EigenLayer-secured oracles.

• Resource: https://eigenlayer.xyz

Lit Protocol — Threshold Cryptography

Programmable key management and threshold decryption. Bastion uses Lit as a trust primitive for confidential execution policies.

• Resource: https://litprotocol.com

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6. Oracles & Data Feeds

Chainlink — Decentralized Oracle Network

Price feeds, VRF (verifiable randomness), Automation (keeper network), CCIP (cross-chain). Bastion consumes Chainlink price feeds for policy thresholds and VRF for unbiased randomness.

• Feed Registry (mainnet): 0x47Fb2585D2C56Fe188D0E6ec628a38b74fCeeeDf
• Resource: https://docs.chain.link

Pyth Network — Low-Latency Oracles

High-frequency price feeds optimized for Solana and EVM. Pull-based model (cheaper than push).

• Resource: https://pyth.network

Chronicle — MakerDAO-Backed Oracles

Verifiable oracle protocol originally built by MakerDAO. Scribe model for gas-efficient updates.

• Resource: https://chroniclelabs.org

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7. Bridges & Interoperability

Across — Intents-Based Bridging

Fast cross-chain transfers via relayers and intents. Optimistic oracle for dispute resolution.

• Resource: https://across.to

LayerZero — Omnichain Messaging

Arbitrary cross-chain message passing. Powers cross-chain agent actions.

• Endpoints deployed on 80+ chains. Resource: https://layerzero.network

Wormhole — Cross-Chain Messaging

Generic message passing + token bridging. Solana-native origins, now multichain.

• Resource: https://wormhole.com

Hyperlane — Permissionless Interop

Permissionless cross-chain messaging. Anyone can deploy to new chains without governance.

• Resource: https://hyperlane.xyz

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8. Indexing & Data

The Graph — Blockchain Indexing

Subgraph-based indexing for fast on-chain data queries. ERC-8004 agent registrations can be indexed for fast discovery.

• Resource: https://thegraph.com

Blockscout MCP — AI Agent Blockchain Data

Model Context Protocol server for structured blockchain data. Multi-chain (mainnet + all major L2s).

• Endpoint: https://mcp.blockscout.com/mcp
• Resource: https://docs.blockscout.com

Dune Analytics — On-Chain SQL

Query blockchain data with SQL. Dashboards for protocol analytics.

• Resource: https://dune.com

Dune Sim — Realtime On-Chain APIs

REST/WebSocket APIs for wallet intelligence, token analytics, and real-time data.

• Resource: https://sim.dune.com

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9. Agent Platforms & Frameworks

Virtuals Protocol — Agent Economy

Agent identity, capital formation, tokenized agents, and agent marketplaces.

• Resource: https://virtuals.io

ElizaOS (ai16z) — Agent Framework

Multi-chain agent framework with plugin system. Bastion provides the trust runtime for ElizaOS agents.

• Resource: https://elizaos.ai

Olas (Autonolas) — Autonomous Agent Services

On-chain agent service registry. Agent bonding, staking, and service composability.

• Resource: https://olas.network

Wayfinder — Agent Routing

Agent discovery and routing infrastructure.

• Resource: https://wayfinder.ai

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10. Developer Tooling

ETHSKILLS

19 Ethereum skills for AI agents (Solidity, wallets, gas, L2s, standards, DeFi, security, testing, deployment).

• Install: /plugin install ethskills@ethskills (Claude Code)
• Resource: https://ethskills.com/SKILL.md

Base MCP

Base Account wallet via MCP server. Send, swap, sign, batched calls, x402 payments, 20+ DeFi plugins.

• Install: npx skills add base/skills --skill base-mcp
• Resource: https://docs.base.org/ai-agents/quickstart

Build on Base

Complete Base development playbook: network config, contract deployment, wallet auth, payments, Farcaster.

• Install: npx skills add base/skills --skill build-on-base
• Resource: https://github.com/base/skills

Foundry

Solidity-native dev toolchain (forge, cast, anvil). Fast compilation, testing, fuzzing, deployment.

• Resource: https://book.getfoundry.sh

Scaffold-ETH 2

Full-stack Ethereum toolkit: Solidity + Next.js + Foundry. Auto-generates TypeScript types.

• Resource: https://docs.scaffoldeth.io

Hardhat 3

TypeScript-first Ethereum dev environment. Solidity testing, fuzzing, Rust internals (Aug 2025).

• Resource: https://hardhat.org

abi.ninja

Paste any verified contract address → interactive UI for all functions. Multi-chain. Zero setup.

• Resource: https://abi.ninja

RPC Providers

• LlamaNodes: https://eth.llamarpc.com (free)
• Alchemy: 300M CU/month free tier
• Infura: MetaMask default
• QuickNode: Performance-focused

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11. Bastion's Trust Lifecycle Map

                         Applications
              AI Agents · Enterprises · DAEMON
                                │
    ────────────────────────────────────────────────────────────
                         Bastion Runtime
    ────────────────────────────────────────────────────────────
    Policy Compiler  · Risk Engine      · Transaction Firewall
    Trust Graph      · Evidence Aggregator · Audit Log
    Agent Session Manager · Human Approval Engine
    ────────────────────────────────────────────────────────────

    Identity & Trust              Agent Interoperability
    ├── ERC-8004 · ERC-8126      ├── A2A
    ├── ENS · DID/VC             ├── MCP
    └── Privado ID               └── ACP (future)

    Policy Backends               Wallet Infrastructure
    ├── OPA · Cedar              ├── ERC-4337 · EIP-7702
    ├── Runtime Rules            ├── ERC-7579 · ERC-7715
    └── Human Approval           ├── Session Keys · Safe
                                 └── Coinbase Smart Wallet

    Evidence & Provenance         Confidential Compute
    ├── EAS · Sign Protocol      ├── Arcium MXE (MPC)
    ├── Sigil · zkTLS            ├── SP1 (ZKVM)
    └── Reclaim · zkPass         ├── Lit (Threshold Crypto)
                                 ├── Nillion (Blind Compute)
    Trust Services               └── Aztec (ZK Private State)
    ├── Attestation: EAS · Sign
    ├── Identity: ERC-8004 · ENS  Execution
    ├── Oracles: Chainlink · Pyth ├── Solana
    │   · Chronicle              ├── Starknet (ZK + native AA)
    ├── Randomness: VRF          ├── Ethereum
    └── Restaking: EigenLayer    └── Midnight (ZK privacy)

    Settlement & Security         Connectivity & Bridging
    ├── Ethereum                 ├── Across
    ├── Pact Network             ├── LayerZero
    └── EigenLayer               ├── Wormhole
                                 └── Hyperlane

    Payments
    ├── x402
    ├── Pact Network
    └── EIP-3009 · ERC-2612
    ────────────────────────────────────────────────────────────

                Applications
    AI Agents · Enterprises · DAEMON

                      │

               Bastion Runtime

────────────────────────────────────────────────────

Identity Policy Wallet ├── ERC-8004 ├── OPA ├── ERC-4337 ├── ERC-8126 ├── Runtime Rules ├── EIP-7702 ├── ENS ├── Human Approval ├── ERC-7579 ├── A2A └── Chainlink VRF ├── Safe (multisig) ├── Privado ID ├── Coinbase Smart Wallet └── DID/VC └── wagmi/viem

Evidence Execution Settlement ├── EAS ├── Solana ├── Ethereum ├── Sign Protocol ├── Arcium (MPC) ├── Pact Network ├── zkTLS/Reclaim └── Midnight (ZK) └── EigenLayer ├── Sigil └── The Graph

Trust Primitives Bridging Payments ├── EigenLayer ├── Across ├── x402 ├── Lit Protocol ├── LayerZero ├── Pact Network ├── Chainlink/Pyth ├── Wormhole └── EIP-3009 └── Chronicle └── Hyperlane

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## 12. Resources

| Category | Resource |
|----------|----------|
| All Ethereum skills | https://ethskills.com/SKILL.md |
| Base agent skills | https://github.com/base/skills |
| ERC-8004 agent identity | https://www.8004.org |
| x402 payments | https://www.x402.org |
| Pact Network | https://pactnetwork.io/docs |
| Blockscout MCP | https://mcp.blockscout.com/mcp |
| Scaffold-ETH 2 | https://docs.scaffoldeth.io |
| Foundry | https://book.getfoundry.sh |
| SpeedRun Ethereum | https://speedrunethereum.com |
| Ethereum.org dev | https://ethereum.org/en/developers |
| ETH Tech Tree | https://www.ethtechtree.com |

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**Built by zkOS Labs** — the Programmable Trust Runtime for Autonomous Systems.