Mender docs

Overview

Paste a failed Solana transaction, find out why it failed, and get a repaired version that simulates clean..

Block explorers explain what happened. Mender proposes repairs and proves with simulation that they would land, and it exposes this as an API that agents can call mid-loop.

Built for agent builders, bot developers and active DeFi users who hit failed transactions and don't want to read program logs..

Getting started

1. Paste an address. Any SPL token mint.
2. Read the report. Each check explained.
3. Share it. Link or image.

Signature or raw transaction input with a decoded failure reason that points to the instruction and the program log line

Paste an address and get a plain report in about a second. Each line says what was checked and what it means.

Variant builder that tries fixes in turn (compute budget, priority fee, blockhash, slippage, missing ATA) and simulates

Line several tokens up side by side and sort by what matters to you.

Side-by-side diff showing what each variant changes and what it costs in extra fees or price impact

Every report has a link and an image you can post, so others see the same facts you saw.

What is live

This page lists what works today and what is planned. Anything marked planned is not available yet.

• Signature or raw transaction input with a decoded failure reason that points to the instruction and the program log line: planned
• Variant builder that tries fixes in turn (compute budget, priority fee, blockhash, slippage, missing ATA) and simulates.: planned
• Side-by-side diff showing what each variant changes and what it costs in extra fees or price impact: planned
• One-click wallet signing for the chosen variant, with a hard cap on slippage and fee set by the user: planned
• REST endpoint for agents: send a failed transaction and policy limits, receive ranked repaired candidates: planned