Vaultfire
On-chain trust verification for AI agents — Street Cred scoring, ERC-8004 identity, and partnership bond verification across Base, Avalanche, Arbitrum, and Polygon mainnet.
⚠️ Alpha Software — Vaultfire Protocol is in active development. Smart contracts are deployed on mainnet but have not been formally audited by a third-party security firm. Read-only tools are safe for any agent. Write tools interact with live contracts and transactions are irreversible. Use at your own risk. See LICENSE for warranty disclaimers.
@vaultfire/mcp-server
MCP server for Vaultfire Protocol
On-chain trust verification for any MCP-compatible AI. Works with Claude · Copilot · Cursor · Windsurf · Google ADK and more.
Deployed on Base · Avalanche · Arbitrum · Polygon.
Quick Start
Claude Desktop
Add to your claude_desktop_config.json (usually at ~/Library/Application Support/Claude/claude_desktop_config.json on macOS):
{
"mcpServers": {
"vaultfire": {
"command": "npx",
"args": ["-y", "@vaultfire/mcp-server"],
"env": {
"VAULTFIRE_CHAIN": "base"
}
}
}
}
To enable write tools (register agents, create bonds), add your private key:
{
"mcpServers": {
"vaultfire": {
"command": "npx",
"args": ["-y", "@vaultfire/mcp-server"],
"env": {
"VAULTFIRE_CHAIN": "base",
"PRIVATE_KEY": "your_private_key_here"
}
}
}
}
Cursor
Add to .cursor/mcp.json in your project root:
{
"mcpServers": {
"vaultfire": {
"command": "npx",
"args": ["-y", "@vaultfire/mcp-server"],
"env": {
"VAULTFIRE_CHAIN": "base"
}
}
}
}
Generic (npx)
# Read-only mode (no key needed)
npx @vaultfire/mcp-server
# With a specific chain
VAULTFIRE_CHAIN=avalanche npx @vaultfire/mcp-server
# With write tools enabled
PRIVATE_KEY=your_private_key npx @vaultfire/mcp-server
Install globally
npm install -g @vaultfire/mcp-server
vaultfire-mcp-server
Available Tools
Read-Only Tools (always available)
| Tool | Description |
|---|---|
vaultfire_verify_agent | Full trust verification: identity, bonds, Street Cred, reputation, bridge status |
vaultfire_get_street_cred | Get Street Cred score (0-95) and tier |
vaultfire_get_agent | On-chain identity data (URI, type, registration date, active status) |
vaultfire_get_bonds | All partnership bonds for an address |
vaultfire_get_reputation | Reputation data (average rating, feedback count, verified %) |
vaultfire_discover_agents | Find agents by capability tags |
vaultfire_protocol_stats | Protocol stats: total agents, bonds, bonded value, bridge sync |
Write Tools (require PRIVATE_KEY env var)
| Tool | Description |
|---|---|
vaultfire_register_agent | Register an AI agent on-chain (ERC-8004) |
vaultfire_create_bond | Create a partnership bond with economic stake |
Warning: Write tools submit real transactions to mainnet. Transactions are irreversible.
Resources
The server exposes two MCP resources for protocol context:
| URI | Description |
|---|---|
vaultfire://chains | All 4 supported chains with contract addresses and chain details |
vaultfire://scoring | Street Cred scoring formula and tier definitions |
Configuration
| Environment Variable | Required | Default | Description |
|---|---|---|---|
VAULTFIRE_CHAIN | No | base | Chain to query: base, avalanche, arbitrum, polygon |
PRIVATE_KEY | No | — | Private key for write tools (register, bond). Never commit this. |
VAULTFIRE_RPC_URL | No | — | Custom RPC URL (overrides default for selected chain) |
Street Cred Scoring
Street Cred is a composite trust score (0–95) computed from live on-chain data:
| Component | Points | Condition |
|---|---|---|
| Identity Registered | 30 | Agent has ERC-8004 on-chain identity |
| Has Bond | 25 | At least one partnership bond exists |
| Bond Active | 15 | At least one bond is currently active |
| Bond Tier | 0–20 | Platinum (≥0.5 ETH) / Gold (≥0.1) / Silver (≥0.05) / Bronze (≥0.01) |
| Multiple Bonds | 5 | More than one bond (ecosystem participant) |
Tiers:
| Tier | Score Range | Description |
|---|---|---|
| Unranked | 0 | No on-chain trust signals |
| Bronze | 1–30 | Basic identity or minimal bond activity |
| Silver | 31–55 | Registered and bonded with some stake |
| Gold | 56–75 | Active bond with meaningful stake |
| Platinum | 76–95 | Multiple active bonds with significant stake |
Supported Chains
| Chain | Chain ID | Hub | Native Token |
|---|---|---|---|
| Base | 8453 | ✅ Primary | ETH |
| Avalanche | 43114 | — | AVAX |
| Arbitrum | 42161 | — | ETH |
| Polygon | 137 | — | POL |
Why Vaultfire
| Feature | Vaultfire | AxisTrust | Cred Protocol | Okta XAA |
|---|---|---|---|---|
| AI Accountability Bonds | ✅ | ❌ | ❌ | ❌ |
| AI Partnership Bonds | ✅ | ❌ | ❌ | ❌ |
| On-chain, trustless | ✅ | ❌ | partial | ❌ |
| Multi-chain (day one) | ✅ (4) | ❌ | ❌ | ❌ |
| Street Cred composite score | ✅ | T-Score | C-Score | ❌ |
| Belief-weighted governance | ✅ | ❌ | ❌ | ❌ |
| ERC-8004 compliant | ✅ | ❌ | ✅ | ❌ |
Morals over metrics. Privacy over surveillance. Freedom over control. Making human thriving more profitable than extraction.
Core differentiators:
- AI Accountability Bonds — real economic skin-in-the-game, not just scores
- AI Partnership Bonds — mutual economic stakes between agents
- Belief-weighted governance — first in industry (not token-weighted)
- Cross-chain from day one — 4 mainnet chains
- Street Cred scoring — composite 0-95 trust score from on-chain data
Vaultfire Ecosystem
| Package | Description |
|---|---|
@vaultfire/agent-sdk | Core SDK — register agents, create bonds, query reputation |
@vaultfire/langchain | LangChain / LangGraph integration |
@vaultfire/a2a | Agent-to-Agent (A2A) protocol bridge |
@vaultfire/enterprise | Enterprise IAM bridge (Okta, Azure AD, OIDC) |
@vaultfire/mcp-server | This package — MCP server for Claude, Copilot, Cursor |
@vaultfire/openai-agents | OpenAI Agents SDK integration |
@vaultfire/vercel-ai | Vercel AI SDK middleware and tools |
@vaultfire/xmtp | XMTP messaging with trust verification |
@vaultfire/x402 | X402 payment protocol with trust gates |
@vaultfire/vns | Vaultfire Name Service — human-readable agent IDs |
vaultfire-crewai | CrewAI integration (Python) |
vaultfire-agents | 3 reference agents with live on-chain trust |
vaultfire-a2a-trust-extension | A2A Trust Extension spec — on-chain trust for Agent Cards |
vaultfire-showcase | Why Vaultfire Bonds beat trust scores — live proof |
vaultfire-whitepaper | Trust Framework whitepaper — economic accountability for AI |
vaultfire-docs | Developer portal — quickstart, playground, framework picker |
Security
- Read-only tools require no credentials and are safe to run anywhere
- Write tools require
PRIVATE_KEY— always load from env vars, never hardcode - Smart contracts are deployed on mainnet but have not been formally audited
- Transactions sent via write tools are irreversible
- Do not expose your MCP server config (with
PRIVATE_KEY) to untrusted parties
License
MIT — Copyright 2025 Ghostkey316
See LICENSE for full terms and warranty disclaimers.
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