# Aptos Explorer

> The official block explorer for the Aptos blockchain. View transactions, accounts, blocks, validators, tokens, and network analytics at [explorer.aptoslabs.com](https://explorer.aptoslabs.com).

## What You Can Do

- Look up any transaction by version number or hash
- Inspect any account's balances, resources, modules, and transaction history
- Browse blocks by height and see contained transactions
- View validator performance, staking, and delegation info
- Explore fungible assets, coins, and NFT token details
- Check network analytics (TPS, daily active users, gas, supply)
- Resolve Aptos Name Service (ANS) `.apt` names to addresses
- View Move objects (on-chain resources implementing the Object model)
- Decompile on-chain Move module bytecode in-browser (WASM, no decompile backend; requires opt-in at `/settings`)

## URL Templates

All URLs default to mainnet. Append `?network=testnet`, `?network=devnet`, or `?network=local` for other networks.

**Crawlers and automated fetchers:** The site’s `robots.txt` disallows many bots from URLs that include `?network=devnet` or `?network=local` (testnet links are still crawlable but generally less useful). Use plain mainnet paths (no `network` query param) when linking for tools that crawl pages; humans can still switch network via the query param or UI.

- Transaction: `/txn/{version}` or `/txn/{hash}`
  - Tabs: `/txn/{id}/userTxnOverview`, `/txn/{id}/events`, `/txn/{id}/payload`, `/txn/{id}/modules` (when the tx publishes or upgrades Move modules), `/txn/{id}/changes`, `/txn/{id}/balanceChange`, `/txn/{id}/trace` (experimental Sentio Move call trace, mainnet)
- Account: `/account/{address}`
  - Tabs: `/account/{address}/transactions`, `/account/{address}/coins`, `/account/{address}/tokens`, `/account/{address}/resources`, `/account/{address}/modules`, `/account/{address}/multisig`, `/account/{address}/info`
  - Modules sub-tabs: `/account/{address}/modules/packages`, `/account/{address}/modules/code/{moduleName}`, `/account/{address}/modules/run/{moduleName}/{functionName}`, `/account/{address}/modules/view/{moduleName}/{functionName}`
  - Code view includes: published source, decompiled bytecode, disassembly
  - Historical module code: the Modules tab includes a version selector to view packages and source at any previous publish transaction
- Block: `/block/{height}`
  - Tabs: `/block/{height}/overview`, `/block/{height}/transactions`
- Validators: `/validators`
  - Tabs: `/validators/all`, `/validators/delegation`, `/validators/enhanced_delegation`
- Individual validator: `/validator/{address}`
- Coin: `/coin/{type}` — e.g., `/coin/0x1::aptos_coin::AptosCoin`
  - Tabs: `/coin/{type}/info`, `/coin/{type}/transactions`, `/coin/{type}/holders`
- Fungible asset: `/fungible_asset/{address}`
  - Tabs: `/fungible_asset/{address}/info`, `/fungible_asset/{address}/transactions`, `/fungible_asset/{address}/holders`
- NFT token: `/token/{tokenId}`
  - Tabs: `/token/{tokenId}/overview`, `/token/{tokenId}/activities`
- Move object: `/object/{address}`
  - Tabs: `/object/{address}/info`, `/object/{address}/transactions`, `/object/{address}/coins`, `/object/{address}/tokens`, `/object/{address}/resources`, `/object/{address}/modules`
  - Modules sub-tabs: `/object/{address}/modules/packages`, `/object/{address}/modules/code/{moduleName}`, `/object/{address}/modules/run/{moduleName}/{functionName}`, `/object/{address}/modules/view/{moduleName}/{functionName}`
- Coins list: `/coins`
- Analytics: `/analytics`
- Blocks list: `/blocks`
- Transactions list: `/transactions`
  - Filter by function: `/transactions?type=user&fn_addr={address}&fn_module={module}&fn_name={function}` (e.g. `?fn_addr=0x1&fn_module=coin&fn_name=transfer`; each field is optional but progressive — module requires address, function requires module)
- Verification: `/verification`
- Releases hub: `/releases` (redirects to default tab `networks`)
  - Tabs: `/releases/networks`, `/releases/aips`, `/releases/sdks`
  - Networks tab — live deployment status (epoch, block height, framework release from gas schedule, max Move bytecode format, node release, node commit, validators, feature flag comparison) for mainnet, testnet, and devnet
  - AIPs tab — Aptos Improvement Proposals index sourced from `aptos-foundation/AIPs` (number, title, status, author, link)
  - SDKs & Tools tab — latest stable releases for the Aptos CLI, `aptos-node`, and the TypeScript / Python / Rust / Go SDKs, with a drill-in list of recent versions per registry
  - Legacy paths `/deployments` and `/aips` redirect to `/releases/networks` and `/releases/aips` respectively
- Settings: `/settings` — configure explorer preferences (decompilation opt-in, API key overrides)

## Key Addresses

- `0x1` — Aptos Framework (core modules: coin, account, staking, governance, fungible_asset)
- `0x3` — Token v1 standard (legacy NFT/token module)
- `0x4` — Token v2 / Digital Asset standard (current NFT standard)
- APT coin type: `0x1::aptos_coin::AptosCoin`

## Example Queries

| User question | Explorer URL |
|---|---|
| Show me transaction 123456789 | `/txn/123456789` |
| What happened in tx 0xabc…def? | `/txn/0xabc…def` |
| What's in account 0x1? | `/account/0x1` |
| Show 0x1's modules | `/account/0x1/modules` |
| Show account 0x1's APT coin module source | `/account/0x1/modules/code/aptos_coin` |
| Latest blocks | `/blocks` |
| Validator stats | `/validators` |
| APT coin info | `/coin/0x1::aptos_coin::AptosCoin` |
| Network analytics | `/analytics` |
| Same on testnet | append `?network=testnet` to any URL |
| All 0x1::coin::transfer txns | `/transactions?type=user&fn_addr=0x1&fn_module=coin&fn_name=transfer` |
| General search / unknown input | `/?search={query}` — pre-fills the search bar on the home page; auto-detects address, hash, ANS name, coin type |

## Quick Data Reference

- 1 APT = 100,000,000 Octas (10^8)
- Addresses: 32 bytes, hex with `0x` prefix (e.g., `0x1`, `0x00…01`)
- Transaction versions: sequential integers from 0
- Move resource syntax: `{address}::{module}::{struct}<{type_params}>`
- ANS names: `.apt` suffix (e.g., `alice.apt`) resolve to 32-byte addresses

## More Information

- Full reference for LLMs: [/llms-full.txt](https://explorer.aptoslabs.com/llms-full.txt)
- Aptos developer docs: [aptos.dev](https://aptos.dev)
- Source code: [github.com/aptos-labs/explorer](https://github.com/aptos-labs/explorer)

## Agent Discovery

- MCP Server Card (SEP-1649 / SEP-2127 draft): [/.well-known/mcp/server-card.json](https://explorer.aptoslabs.com/.well-known/mcp/server-card.json) — describes the Explorer server, WebMCP transport endpoint, and read-only navigation tool capabilities for pre-connection agent discovery.
- API catalog (RFC 9727, `application/linkset+json`): [/.well-known/api-catalog](https://explorer.aptoslabs.com/.well-known/api-catalog) — lists upstream Aptos REST and Indexer GraphQL APIs with `service-desc` / `service-doc` / `status` links.
- Agent Skills discovery index (cloudflare/agent-skills-discovery-rfc v0.2.0): [/.well-known/agent-skills/index.json](https://explorer.aptoslabs.com/.well-known/agent-skills/index.json) — published skills for routing Aptos lookups to explorer URLs.
- HTTP `Link` response header: the homepage advertises the MCP Server Card, `api-catalog`, the agent-skills index, and both `llms.txt` / `llms-full.txt` via RFC 8288 `Link` headers so agents can discover resources without parsing HTML.
- Markdown content negotiation: the homepage responds with a markdown view (`Content-Type: text/markdown`) when the request includes `Accept: text/markdown`; HTML remains the default for browsers.
- WebMCP: when the user's browser supports `navigator.modelContext`, the Explorer registers read-only navigation tools (`search_explorer`, `open_transaction`, `open_account`, `open_block`, `open_releases`, `open_coin`) so in-browser agents can open pages by identifier.
- Content usage: [/robots.txt](https://explorer.aptoslabs.com/robots.txt) declares Content Signals — `ai-train=no, search=yes, ai-input=yes`.