3.120 @gen3labs/futurepass-signer

	At a glance
What it is	Provides a signer interface with common methods for signing messages, transactions and extrinsics.
Where it sits	Part III — Reference · Chapter 3.120
Covers	Technical notes · Upstream README
Package	@gen3labs/futurepass-signer

Community fork of @futureverse/signer.

Community fork of a Futureverse package

Published under @gen3labs by markibanez in April 2026 as a fork of the matching @futureverse/* package; the surface mirrors the upstream one-for-one. The sign-in forks default to the gen3labs-hosted issuer futurepass.gen3labs.tech and signer fpsigner.gen3labs.tech. Those did not answer, nor did the Futureverse services they re-host (checked 2026-10-10): signer.pass.online and signer.futureverse.app answer HTTP 402; login.futureverse.com, auth.futureverse.app and pass-api.futureverse.app do not resolve; futurepass.gen3labs.tech and fpsigner.gen3labs.tech refuse connections. FuturePass’s login pages answered on the same check. A sign-in through the forks’ default hosts cannot complete. New apps sign users in with their own wallet — any EIP-6963 wallet app, MetaMask preferred — and talk to the chain through @therootnetwork/api and @therootnetwork/evm. If you have a FuturePass, you can move what’s in it to your wallet at https://futurepass.trn.codeology.co.nz/wallet/futurepass.

Version

1.8.0

Published

2026-04-28

License

n/a

Status

fork-active

npm

https://www.npmjs.com/package/@gen3labs/futurepass-signer

Types

./index.d.ts

Maintainers

markibanez

Depends on

@polkadot/api · @polkadot/keyring · @polkadot/util · @polkadot/util-crypto · @polkadot/types · blakejs · ripple-binary-codec · ripple-keypairs · viem · xrpl · xumm · @gen3labs/futurepass-signer-core

Recent versions

1.8.0

3.120.1 Technical notes

3.120.1.1 Why use it

Existing code moved to the fork. Its custodial path goes through fpsigner.gen3labs.tech, which refuses connections (checked 2026-10-10).

3.120.1.2 When to skip it

Any new project: the user’s own wallet signs.

3.120.1.3 Pairs with

• @gen3labs/futurepass-signer-core — shared interface

3.120.1.4 Alternatives

• @futureverse/signer (fv-published) —

3.120.2 Upstream README

3.120.2.1 Futureverse Signer

Provides a signer interface with common methods for signing messages, transactions and extrinsics.

Installation

NPM:

    npm install @futureverse/signer --save

Yarn:

    yarn add @futureverse/signer

Usage

Wagmi useFutureverseSigner Hook

The example below shows how to create a hook (useFutureverseSigner) to get the signer interface from wagmi wallet client.

import { clientToSigner } from '@futureverse/signer';
import { useMemo } from 'react';
import { type Connector, useWalletClient } from 'wagmi';

/** Action to convert a Viem Client to a Futureverse Signer. */
export function useFutureverseSigner({ chainId, connector }: { chainId?: number; connector?: Connector } = {}) {
  const { data: client } = useWalletClient({ chainId, connector });

  return useMemo(() => (client ? clientToSigner(client) : undefined), [client]);
}

Signing a message

import { useCallback } from 'react';
import { useFutureverseSigner } from './useFutureverseSigner';

function MessageSignerDemo() {
  const { signer } = useFutureverseSigner();

  const signExtrinsic = useCallback(async () => {
    if (!signer) return;
    const message = 'message to sign';
    return await signer.signMessage(message);
  }, [signer]);

  // Your UI code to call signExtrinsic
  return <></>;
}

Signing a Root Network extrinsic

import { userSession } from '@futureverse/auth';
import { useTrnApi } from '@futureverse/transact-react';
import { useCallback } from 'react';
import { useFutureverseSigner } from './useFutureverseSigner';

function ExtrinsicSignerDemo() {
  const { userSession } = useAuth();
  const { trnApi } = useTrnApi();
  const { signer } = useFutureverseSigner();

  const signExtrinsic = useCallback(async () => {
    if (!signer) return;
    if (!trnApi) return;
    if (!userSession?.eoa) return;
    const collectionId = '<your collection id>';
    const numberOfTokens = 1; // How many tokens to mint
    const address = 'FuturePass or address to mint to';
    const extrinsic = trnApi.tx.nft.mint(collectionId, numberOfTokens, address);
    return await signer.signExtrinsic(trnApi, extrinsic, userSession.eoa);
  }, [signer]);

  // Your UI code to call signExtrinsic
  return <></>;
}

Source: https://www.npmjs.com/package/@gen3labs/futurepass-signer · captured 2026-10-10

Associated docs

Where else you might go from here. Following one is optional — this chapter stands without them.

SDKs & Packages

Part of — Every public @therootnetwork/*, @futureverse/*, and @gen3labs/* npm package on TRN, with status, why-to-use, and full per-package technical notes.

@futureverse/signer

See also — Provides a signer interface with common methods for signing messages, transactions and extrinsics.

@gen3labs/futurepass-signer-core

See also — @gen3labs/futurepass-signer-core

@gen3labs/futurepass-transact

See also — An API to help facilitate transactions on The Root Network

@therootnetwork/api

See also — A utility package that complements the @polkadot/api to connect and interact with the Root Network node.

@therootnetwork/evm

See also — A utility package that simplifies EVM development on The Root Network.

Back matter — read in order

See also — The whole of Back matter as one continuous page, reprinted from its chapters without change.

Contents

See also — Every chapter in this book, each with the one line that tells you what you get by reading it.