Avalanche AVAX MCP Server

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answering

Avalanche AVAX MCP is answering right now. Last checked 15 min ago. It exposes 47 tools. Last commit 7 Feb 2026.

Search and retrieve Avalanche blockchain documentation for building on AVAX.

Uptime history 91 days of history · worst day 99%

91 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

288 ms

Response time

average over 24h

Stars

last commit 7 Feb 2026

What changed 24

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 August 2026. No other catalogue keeps this.

22 Oct 2 tools changed the parameters they ask for chain_stats, onchain_activity

22 Oct 2 tool descriptions were rewritten chain_stats, onchain_activity

22 Oct a tool changed version

22 Oct a tool disappeared onchain_query

19 Aug 9 tool descriptions were rewritten blockchain_lookup_chain, platform_get_current_supply, platform_get_current_validators and 6 more

19 Aug 8 tools changed the parameters they ask for platform_get_current_supply, platform_get_current_validators, platform_get_min_stake and 5 more

9 Aug the owner changed

Tools have disappeared from this server

A tool that vanishes takes a piece of your agent with it, and the change arrives silently. Watch this server and every such change lands in your inbox.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 15 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add avalanche-docs --transport http https://build.avax.network/api/mcp

Settings → Connectors → Add custom connector, then paste this address

https://build.avax.network/api/mcp

~/.codex/config.toml

[mcp_servers.avalanche-docs]
url = "https://build.avax.network/api/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "avalanche-docs": {
      "url": "https://build.avax.network/api/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "avalanche-docs": {
      "type": "http",
      "url": "https://build.avax.network/api/mcp"
    }
  }
}

Available tools 47

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

platform

platform_get_balance

Get the AVAX balance of one or more P-Chain addresses

platform_get_block

Get a P-Chain block by its block ID

platform_get_block_by_height

Get a P-Chain block by its height

platform_get_blockchains

Get all blockchains that exist on the P-Chain (paginated; use limit/offset)

platform_get_current_supply

Get the current total supply of AVAX on a Subnet/L1

platform_get_current_validators

Get the current validators of a Subnet/L1 (paginated; use limit/offset)

platform_get_height

Get the current P-Chain block height

platform_get_min_stake

Get the minimum staking amounts for validators and delegators on a Subnet/L1

platform_get_pending_validators

Get the pending validators of a Subnet/L1 (paginated; use limit/offset)

platform_get_staking_asset_id

Get the asset ID of the token used for staking on a Subnet/L1

platform_get_subnets

Get information about Subnets/L1s on the P-Chain

platform_get_total_stake

Get the total amount staked on a Subnet/L1

platform_get_tx

Get a P-Chain transaction by its transaction ID

platform_get_tx_status

Get the status of a P-Chain transaction

platform_get_utxos

Get UTXOs that reference a given set of P-Chain addresses

platform_get_validators_at

Get the validators and their weights of a Subnet/L1 at a given P-Chain height

info

info_acps

Get information about Avalanche Community Proposals (ACPs), including their status and vote counts.

info_get_blockchain_id

Get the CB58-encoded blockchain ID for a given blockchain alias (e.g., "X", "P", "C").

info_get_network_id

Get the numeric ID of the Avalanche network this node is participating in.

info_get_network_name

Get the human-readable name of the Avalanche network this node is participating in.

info_get_node_version

Get the version of the node, including the database version, git commit, and API compatibility info.

info_get_tx_fee

Get the current transaction fees for the network, returned in both nAVAX and AVAX.

info_is_bootstrapped

Check whether a given chain has finished bootstrapping on the node.

info_peers

Get a list of peers this node is connected to. Optionally filter by specific NodeIDs.

blockchain

blockchain_get_contract_info

Compatibility alias for onchain_lookup contract metadata. Prefer onchain_lookup for new clients.

blockchain_get_native_balance

Compatibility alias for onchain_lookup address balances. Prefer onchain_lookup for new clients.

blockchain_lookup_address

Compatibility alias for onchain_lookup address details. Prefer onchain_lookup for new clients.

blockchain_lookup_chain

Look up a blockchain by its ID — name, VM type, and Subnet/L1.

blockchain_lookup_subnet

Look up a Subnet / L1 by its ID — validators, chains, and configuration.

blockchain_lookup_transaction

Look up a transaction by hash on Avalanche (C-Chain, P-Chain, or X-Chain). Supports 0x format (C-Chain) and CB58 format (P/X-Chain).

blockchain_lookup_validator

Look up a validator by node ID — stake, uptime, delegation info.

avalanche

avalanche_docs_fetch

Compatibility alias for docs_fetch. Prefer docs_fetch for new clients.

avalanche_docs_list_sections

Compatibility alias for docs_list_sections. Prefer docs_list_sections for new clients.

avalanche_docs_search

Compatibility alias for docs_search. Prefer docs_search for new clients.

docs

docs_fetch

Fetch a specific documentation page as markdown

docs_list_sections

List available documentation sections and their page counts

docs_search

Search body-level chunks across Avalanche documentation, academy courses, integrations, and blog posts. Returns source citations and matching excerpts.

acp

acp_list

List Avalanche Community Proposals with structured fields, optionally filtered by status (Activated, Implementable, Proposed, Stale, Withdrawn) or track (Standards, Best Practices, Meta, Subnet).

acp_lookup

Look up Avalanche Community Proposals (ACPs) by number, title, or topic. When a number is provided the structured ACP record is returned (title, status, track, authors, cross-references).

console

console_flow

Builder Console flow knowledge. Call with NO `flow` to list every flow (summaries + deep-links); call with a `flow` key to explain it (ordered steps, equivalent CLI, whether it signs transactions, deep-link). Flows: create-l1, convert-to-l1, validator-manager, ictt, faucet, multisig, staking, transfers, interchain-kit-local.

console_link

Return a deep-link into a specific Builder Console flow (create-l1, convert-to-l1, validator-manager, ictt, faucet, multisig, staking, transfers, interchain-kit-local). For faucet on mainnet, returns a note that there is no mainnet faucet.

onchain

onchain_activity

Recent on-chain activity. scope=chain returns the transaction COUNT over the last `hours` (closed hours, max 720h = 30 days; for longer windows use chain_stats window=series) plus the latest transactions. scope=address returns the latest transactions of the address, with no time window. For a token/contract use scope=token (transfers). scope=primary covers P/X-chain and DEFAULTS to P-Chain when no blockchainId is given (so "last N P-chain transactions" just works). A value with no scope defaults to address.

onchain_lookup

PRIMARY lookup tool — use this (not raw RPC) to resolve/describe any on-chain identifier in one call: an EVM address (native + token balances, recent txs, contract metadata + isContract), a contract/token (metadata + deployment + recent transfers), an NFT (collection + tokenId), a tx hash, a subnet ID, a NodeID validator, a P-/X-Chain account (P-…/X-… → P-Chain balance), or a chain name/id. Use this for any address balance / contract-info / token / identity question. `kind` auto-detects; network is inferred from P-/X-Chain prefixes. Backed by Glacier + P-Chain RPC.

build

build_plan

Generate a step-by-step, copy-pasteable runbook for an Avalanche operation — Builder Console (no-code) path plus the equivalent platform-cli / SDK / interchain-kit commands. Read-only: never signs. operation: create-l1 (launch an L1); use ictt or interchain-kit for any CROSS-CHAIN / interoperability work — bridging tokens, sending cross-chain (ICM / Teleporter / Warp) messages, or connecting your L1 to C-Chain or other L1s (interchain-kit also lets you iterate locally first); validator-manager; staking; transfer.

chain

chain_stats

Chain statistics from the Avalanche Stats API (pre-aggregated; closed periods only, so the current hour or day is not included). target=chain: tx count, gas used, fees paid and average gas price over the last `hours` (window=recent, max 720h = 30 days), or a time-series that also has active senders (window=series, `days` max 365; timeInterval=hour max 90 days). target=network: current P-chain validator snapshot. There are no per-contract stats here; for those, run SQL in the Builder Hub explorer Query page. Note: C-Chain gasUsed is gas-target-regulated, so daily gas is about stable even as tx count varies. That is expected, not an error.

cli

cli_lookup_command

Look up Avalanche CLI, Platform CLI, and tmpnet command guidance in the docs. Returns cited command references and task docs.

rpc

rpc_lookup_method

Look up Avalanche RPC methods and API guides across C-Chain, P-Chain, X-Chain, Subnet-EVM, and node RPC docs.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

onchain_query

removed 22 Oct 2026

Endpoints

URL	Transport	State	Latency	Checked
https://build.avax.network/api/mcp	streamable-http	answering	247 ms	15 min ago

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Avalanche AVAX MCP — questions

Answers built from our own checks of this server.

What can Avalanche AVAX MCP do?

It exposes 47 tools, read directly from the server on our last check. Among them: acp_list, acp_lookup, avalanche_docs_fetch, avalanche_docs_list_sections, avalanche_docs_search, blockchain_get_contract_info and 41 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is Avalanche AVAX MCP mostly used for?

Its tools cluster around platform, info and blockchain. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Avalanche AVAX MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 288 ms. The bar chart above shows every period we have measured.

Did Avalanche AVAX MCP ever remove tools?

Yes. onchain_query is no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.

How do I connect Avalanche AVAX MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Avalanche AVAX MCP need an API key?

No. Avalanche AVAX MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 47 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Avalanche AVAX MCP?

It answers our handshake in 288 ms on average, which is faster than 47% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Avalanche AVAX MCP open source?

The code is open source: it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at build.avax.network, which runs on its operator's own terms.