agent-erc8004-bridge

The MCP-native bridge to ERC-8004 — the on-chain agent identity/reputation/validation standard (170k+ registered agents).

CommunityOnlineNo sign-inGlobalFreeCan modify data

What it can do

  • Import Registration: Import an ERC-8004 Identity Registry record (chain_id + ERC-721 token_id + agentURI + owner). Idempotent: re-import updates in place. Returns the canonical record with its determi
  • Resolve Agent: Resolve an imported ERC-8004 registration by bridge DID or by (chain_id, token_id).
  • Import Feedback: Import ERC-8004 Reputation Registry feedback records for an agent. Each item: {value: bool|0..1, at: ISO-8601, source?, weight?, feedback_id?}. Idempotent per feedback_id.

What data it sees

Do you need an account

No: the server works without sign-in

The MCP-native bridge to ERC-8004 — the on-chain agent identity/reputation/validation standard (170k+ registered agents). Resolve registrations, score their feedback with decay-weighted trust math, bind on-chain identities to DIDs, export unsigned attestations for your own signer. No keys, no chain writes — by invariant. Part of the Viridis Agent Fleet. Genesis receipts: github.com/jdhart81/viridis-agent-fleet/blob/main/docs/GENESIS_RECEIPTS.md

How to connect

How to connect agent-erc8004-bridge to Claude

The server address to paste into Claude settings:

https://agent-erc8004-bridge--hartjustin6.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect agent-erc8004-bridge to ChatGPT

The server address to paste into ChatGPT settings:

https://agent-erc8004-bridge--hartjustin6.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect agent-erc8004-bridge to Cursor

The server address to paste into Cursor settings:

https://agent-erc8004-bridge--hartjustin6.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (9)

Raw names from tools/list. Only developers need these.

import_registrationImport an ERC-8004 Identity Registry record (chain_id + ERC-721 token_id + agentURI + owner). Idempotent: re-import updates in place. Returns the canonical record with its deterministic bridge DID (did:viridis:erc8004:<chain>:<token>).
resolve_agentResolve an imported ERC-8004 registration by bridge DID or by (chain_id, token_id).
import_feedbackImport ERC-8004 Reputation Registry feedback records for an agent. Each item: {value: bool|0..1, at: ISO-8601, source?, weight?, feedback_id?}. Idempotent per feedback_id.
score_agentDecay-weighted trust score in [0,1] + tier over the agent's imported ERC-8004 feedback — recent behavior outweighs old; no feedback scores a neutral 0.5 prior (no blind trust, no unfair zero).
bind_identityBind a fleet DID to an ERC-8004 identity. Produces an order-independent, content-addressed (unsigned) binding attestation.
export_attestationExport the agent's current trust score as an UNSIGNED ERC-8004 Validation Registry-shaped payload, content-addressed and ready for YOUR OWN signer to anchor on-chain.
verify_attestationRecompute a payload's content hash and report whether it is intact.
list_registrationsList all imported ERC-8004 registrations.
describe_agentReturn the bridge's capabilities and input contract.