EthersFlow — Developer Toolkit & Trust Layer

Developer toolkit for EthersFlow — a multi-model trust layer that verifies AI outputs through adversarial consensus. MCP server, SDKs, and API docs.

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Overview

EthersFlow verifies what an AI agent is about to do — before it does it — using multiple independent models and a cryptographically signed audit trail.

                           +-------------------------------------+
                           |      Autonomous AI Agent            |
                           +------------------+------------------+
                                              | Proposed Action
                                              v
+----------------------------------------------------------------------------------------+
|                        EthersFlow Verification Gateway                                 |
|                                                                                        |
|  +----------------------+   +----------------------+   +----------------------------+  |
|  | Direct Pragmatist    |   | Constructive Skeptic |   | Lateral Synthesizer        |  |
|  +----------+-----------+   +----------+-----------+   +-------------+--------------+  |
|             +--------------------------+-----------------------------+                 |
|                                        | Adversarial Cross-Examination                 |
|                                        v                                               |
|                         +-----------------------------+                                |
|                         | Federated Consensus Engine  |                                |
|                         +--------------+--------------+                                |
|                                        | Ed25519 Signature                             |
+----------------------------------------+-----------------------------------------------+
                                         | Signed Verdict
                                         v
                 +----------------------------------------------+
                 |  APPROVED / FLAGGED / REJECTED Decision Gate |
                 +----------------------------------------------+

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What's Included

This repository contains the official client surfaces and developer tools for the EthersFlow ecosystem:

Surface	Path	Description
MCP Server	/mcp-server	Model Context Protocol server for Claude Desktop, Cursor, and MCP clients
Python Demo & Verifier	efverify.py	Zero-dependency pure-Python client and Ed25519 signature validator
Python SDK	/sdk/python	Native Python package & LangChain tool wrapper
TypeScript SDK	/sdk/typescript	TypeScript SDK + Cloudflare Worker middleware helper
Postman Collection	/postman	11-request Postman collection + environment variables

Note: The core Federated Adversarial Consensus engine runs on Cloud Run with Zero Data Retention (ZDR). This public repository hosts client-side tools, SDKs, and integration specs.

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5-Minute Quickstart

1. cURL API Call (Fastest Proof)

curl -X POST "https://www.ethersflow.com/api/v1/verify" \
  -H "Authorization: Bearer $ETHERSFLOW_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "agent_action": "Transfer 5000 USDC to wallet 0x9f for smart contract audit",
    "persona_preset": "financial_compliance",
    "agent_count": 3
  }'

2. Python SDK & Zero-Dependency Verifier

Install via pip:

pip install ethersflow

Or run the included zero-dependency reference script:

python efverify.py verify "Transfer 5000 USDC to wallet 0x9f for smart contract audit"

3. Model Context Protocol (MCP) Server

Option A: Via NPX (Recommended)

npx -y @ethersflow/mcp-server --api-key=YOUR_API_KEY

Option B: Remote HTTP / SSE Gateway (Zero Local Dependencies)

Connect your MCP client directly to EthersFlow's production endpoint:

• Endpoint: https://www.ethersflow.com/api/mcp
• Headers: Authorization: Bearer YOUR_API_KEY

Option C: Claude Desktop Configuration

{
  "mcpServers": {
    "ethersflow": {
      "command": "npx",
      "args": ["-y", "@ethersflow/mcp-server"],
      "env": {
        "ETHERSFLOW_TOKEN": "YOUR_API_KEY",
        "ETHERSFLOW_BASE_URL": "https://www.ethersflow.com"
      }
    }
  }
}

Option D: From source

git clone https://github.com/Ethersflow/EthersFlow.git
cd EthersFlow/mcp-server
npm install
npm start

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Status & Known Limitations

• Ed25519-Signed Audit Trail: Every audit node output is signed using Ed25519-EdDSA. Signatures can be verified independently against /.well-known/jwks.json with zero trust required in EthersFlow's servers.
• Probabilistic, Not Deterministic: Borderline or ambiguous actions (e.g., high-value wire transfers or missing compliance records) evaluate near decision thresholds (APPROVED <-> FLAGGED_HUMAN_REVIEW). We strongly recommend routing any FLAGGED_HUMAN_REVIEW verdict directly to human operators for sign-off.
• Live Model Engine: Powered by heterogeneous inference nodes across independent providers (Llama 3.3 70B Instruct via Groq, Qwen 3.6 27B / Qwen 3.8 27B, and Gemini 3.7 Flash) with active pipeline routing and automated failover. Multi-provider custom BYOK model routing is under continuous expansion.
• Proprietary Core Architecture: This repository hosts public developer toolkits, SDKs, Postman collections, and MCP wrappers. The core Federated Adversarial Consensus backend operates as a secure, hosted API service on Cloud Run with Zero Data Retention (ZDR). No backend application code or server secrets exist in this repository.

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Key Features

• Multi-Model Consensus: Eliminates single-model bias by forcing heterogeneous models into adversarial debate.
• Ed25519 Attestation: Every debate node output is signed with an Ed25519 cryptographic key. Public key set available at /.well-known/jwks.json.
• Zero Data Retention (ZDR): Submitted action chains are processed purely in volatile RAM and never stored or used for model training.
• OpenAI & Anthropic Drop-In Proxies: Use /v1/chat/completions or /v1/messages as a drop-in replacement for existing agent pipelines.
• Specialized Personas:
  • financial_compliance (FINRA/SEC, wire limits, KYC, sanctions)
  • clinical_safety (ISMP high-alert meds, dosage bounds, FDA)
  • cybersecurity_auditor (NIST SP 800-53, privilege escalation, SOC 2)
  • legal_citation (FCPA, evidentiary privilege, contract breach)
  • general_adversarial (Cross-domain safety & logic verification)

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Framework Integrations

LangChain (Python)

import os
from ethersflow import EthersFlowLangChainTool

verifier_tool = EthersFlowLangChainTool(api_key=os.getenv("ETHERSFLOW_API_KEY", "your_api_key"))

# Add to your LangChain agent tools
tools = [verifier_tool]

Cloudflare Workers / Agents SDK (TypeScript)

import { cloudflareVerifyGate } from '@ethersflow/sdk';

export default {
  async fetch(request: Request, env: { ETHERSFLOW_API_KEY: string }) {
    const isSafe = await cloudflareVerifyGate(
      "Transfer 5000 USDC to wallet 0x9f",
      "Vendor audit payment",
      env.ETHERSFLOW_API_KEY
    );

    if (!isSafe) {
      return new Response("Action blocked by EthersFlow Consensus Gate", { status: 403 });
    }

    // Proceed with execution
  }
};

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Security & Ed25519 Attestation

EthersFlow publishes its public key set in JSON Web Key Set (JWKS) format:

• JWKS Endpoint: GET /.well-known/jwks.json
• Attestation Manifest: GET /.well-known/attestation.json
• Verification Endpoint: POST /api/v1/verify-attestation

You can verify signatures locally or through the API to prove that every audit node's perspective originated directly from the EthersFlow signing authority.

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Postman Collection

Import postman/ethersflow.postman_collection.json and postman/ethersflow.postman_environment.json into Postman to test all 11 core endpoints instantly.

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Links & Community

MCP Listings

• Official MCP Registry: https://registry.modelcontextprotocol.io (search "Ethersflow")
• Smithery: https://smithery.ai/servers/ethersflow-dev/ethersflow
• Glama: https://glama.ai/mcp/servers/Ethersflow/EthersFlow

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License

Code & SDK wrappers licensed under MIT License. Hosted EthersFlow API services subject to Terms of Service.