Developer Reference

Deep Link Documentation

Integrate Steem Keychain Mobile into your dApp with deep links. Trigger transfers, votes, delegations, and more with a single URL.

Try Deep Link Lab Quick Start

Quick Start

Add a deep link to your app in 30 seconds:

HTML

<a href="steem://transfer?to=kafio&amount=1.000&currency=STEEM&memo=tip">
  Tip 1 STEEM via Keychain
</a>

When a user with Steem Keychain Mobile installed taps this link, it opens the wallet with a pre-filled transfer confirmation screen.

Overview

Steem Keychain Mobile handles two URL protocols:

Protocol	Purpose	Example
`steem://`	Blockchain operations (transfer, vote, delegate, etc.)	`steem://transfer?to=kafio&amount=1.000`
`steem-keychain://`	App commands (browser, add account, sign request)	`steem-keychain://browser/https%3A%2F%2Fsteempro.com`

steem:// Protocol

The steem:// protocol triggers blockchain operations. Each operation maps to a Keychain signing request.

Transfer

URI Format

steem://transfer?to={recipient}&amount={amount}&currency={STEEM|SBD}&memo={memo}&from={sender}&enforce={true|false}

Parameter	Default	Description
`to`	—	Recipient account
`amount`	—	Amount (e.g. `1.000` or `1.000 STEEM`)
`currency`	`STEEM`	`STEEM` or `SBD`
`memo`	`""`	Transaction memo
`from`	Active account	Sender account
`enforce`	`false`	Lock amount/recipient fields

Example

steem://transfer?to=kafio&amount=5.000&currency=STEEM&memo=Thanks%20for%20building

Vote

URI Format

steem://vote?author={author}&permlink={permlink}&weight={weight}&voter={voter}

Parameter	Default	Description
`author`	—	Post author
`permlink`	—	Post permlink
`weight`	`10000`	Vote weight (-10000 to 10000)
`voter`	Active account	Voting account

Example

steem://vote?author=kafio&permlink=steem-keychain-mobile-phase-8&weight=10000

Delegate

URI Format

steem://delegate?to={delegatee}&amount={amount}&from={delegator}

Parameter	Default	Description
`to`	—	Account receiving delegation
`amount`	—	SP amount
`from`	Active account	Delegating account

Example

steem://delegate?to=kafio&amount=100.000

Power Up

URI Format

steem://power-up?from={account}&to={recipient}&amount={amount}

Parameter	Default	Description
`from`	—	Account powering up
`to`	Same as `from`	Recipient of SP
`amount`	—	STEEM amount

Power Down

URI Format

steem://power-down?account={account}&amount={amount}

Parameter	Required	Default	Description
`account`		—	Account to power down
`amount`		—	SP amount to power down

Witness Vote

URI Format

steem://witness-vote?witness={witness}&account={voter}&approve={true|false}

Parameter	Default	Description
`witness`	—	Witness account name
`account`	Active account	Voter account
`approve`	`true`	Vote or unvote

Example

steem://witness-vote?witness=kafio.wit&approve=true

Follow / Unfollow

URI Format

steem://follow?follower={you}&following={target}
steem://unfollow?follower={you}&following={target}

Parameter	Required	Default	Description
`follower`		Active account	Your account
`following`		—	Account to follow/unfollow

Reblog

URI Format

steem://reblog?account={you}&author={author}&permlink={permlink}

Parameter	Default	Description
`account`	Active account	Reblogging account
`author`	—	Original post author
`permlink`	—	Original post permlink

Post / Comment

Also accepts: steem://comment

URI Format

steem://post?username={author}&title={title}&body={body}&parent_perm={permlink}&json_metadata={json}

Parameter	Default	Description
`username`	Active account	Author account
`title`	`""`	Post title
`body`	`""`	Post body (markdown)
`parent_perm`	`""`	Parent permlink (for comments)
`parent_username`	`null`	Parent author (for comments)
`json_metadata`	`{}`	Post metadata JSON
`permlink`	Auto-generated	Custom permlink
`comment_options`	`null`	Comment options JSON (beneficiaries, max payout)

Sign Buffer (Authentication)

Also accepts: steem://sign-buffer

URI Format

steem://signBuffer?username={account}&message={message}&keyType={Posting|Active}

Parameter	Default	Description
`username`	Active account	Account to sign with
`message`	—	Message to sign
`keyType`	`Posting`	Key type to use

Broadcast (Advanced)

URI Format

steem://broadcast?username={account}&operations={json_ops}&keyType={Active|Posting}

Parameter	Default	Description
`username`	Active account	Broadcasting account
`operations`	—	JSON array of operations
`keyType`	`Posting`	`Active` or `Posting`

Sign (Raw Transaction)

URI Format

steem://sign?ops={url_encoded_json_operations}&account={account}

The ops parameter should be a URL-encoded JSON array of blockchain operations. The wallet will prompt the user to sign the transaction with their Active key.

steem-keychain:// Protocol

The steem-keychain:// protocol triggers app-level commands — opening the browser, importing accounts, or sending arbitrary signing requests.

Open Browser

Opens a URL in Keychain's built-in dApp browser with Keychain JS bridge injected.

URI Format

steem-keychain://browser/{url_encoded_url}

Example — Open SteemPro

steem-keychain://browser/https%3A%2F%2Fsteempro.com

Add Account

Import an account into the wallet with pre-filled keys.

URI Format

steem-keychain://add_account={"name":"username","keys":{"posting":"5K..."}}

Request (Any Operation)

Send any Keychain operation as a JSON-encoded request. This is the most flexible method — any operation the Keychain API supports can be triggered via this endpoint.

URI Format

steem-keychain://request?data={url_encoded_json_request}

Example — Transfer via Request

steem-keychain://request?data=%7B%22type%22%3A%22transfer%22%2C%22to%22%3A%22kafio%22%2C%22amount%22%3A%221.000%22%2C%22currency%22%3A%22STEEM%22%7D

QR Codes

Steem Keychain Mobile includes a universal QR scanner that automatically detects:

steem:// deep links → routes to operation confirmation
steem-keychain:// protocol → executes app command
Account import QR codes → routes to add account
Regular URLs → opens in built-in browser

Generate QR codes using the Deep Link Lab. Build a URI, and the QR code is generated automatically.

Integration Guide

Examples for integrating deep links into your application:

HTML

<a href="steem://transfer?to=kafio&amount=1.000&currency=STEEM&memo=tip">
  Tip 1 STEEM
</a>

JavaScript

const deepLink = `steem://transfer?to=${recipient}&amount=${amount}&currency=${currency}&memo=${encodeURIComponent(memo)}`;
window.location.href = deepLink;

React Native

import { Linking } from 'react-native';

Linking.openURL('steem://transfer?to=kafio&amount=1.000&currency=STEEM');

Testing

Use the Deep Link Lab to build, validate, and test any deep link:

Builder — Select an operation, fill the form, get a URI + QR code
Parser — Paste any URI to decode and validate it
History — Save and replay your test URIs

Open Deep Link Lab