Alchemy Official

What it does

When your agent uses it

• Tasks that involve Crypto and DeFi analysis
• Tasks that involve Webhooks
• Tasks that involve gRPC and Protobuf

Example prompts

• “/alchemy-official”

Requirements

• A credential in ALCHEMY_API_KEY
• A credential in ALCHEMY_NOTIFY_AUTH_TOKEN

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

1. 1Check if $ALCHEMY_API_KEY is set (e.g., echo $ALCHEMY_API_KEY).
2. 2If not set, do NOT proceed with API-key URLs. Use the agentic-gateway skill instead — it requires no API key.
3. 3If set, use the Base URLs + Auth table below.

What it can do on your machine

Read from SKILL.md and the folder at commit e5199b5. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Shell commands in SKILL.md call:

  • curl

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  Hosts in commands or code, which the agent is likely to contact:

  • eth-mainnet.g.alchemy.com
  • api.g.alchemy.com
  • dashboard.alchemy.com
  • solana-mainnet.g.alchemy.com
  • base-mainnet.g.alchemy.com
  • arb-mainnet.g.alchemy.com
  • bnb-mainnet.g.alchemy.com
  • x402.alchemy.com

  Also links to:

  • alchemy.com

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names these keys or tokens, usually read from environment variables:

  • ALCHEMY_API_KEY
  • ALCHEMY_NOTIFY_AUTH_TOKEN

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Alchemy Official loads about 6.1k tokens when it runs, and up to ~53k if it reads all its reference files. Until then it costs about 69 tokens; SKILL.md has 2,254 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~69

When it runs · the whole SKILL.md, loaded when a task matches

~6.1k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~53k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from LeoYeAI/openclaw-master-skills at commit e5199b5, republished under its MIT licence (© LeoYeAI). 2,254 words, ~6,137 tokens.

name

alchemy-official

description

Official Alchemy skill. Two auth modes: API key or x402 Agentic Gateway (no key needed). Complete coverage for ~100 chains: Token API, NFT API, Transfers, Prices, Portfolio, Simulation, Webhooks, Solana, and JSON-RPC. 82 reference docs + x402 gateway rules.

version

1.0.0

author

alchemyplatform

homepage

https://github.com/alchemyplatform/skills

license

MIT

tags

alchemy, blockchain, infrastructure, multi-chain, tokens, nfts, prices, transfers, portfolio, webhooks, solana, evm, x402, agentic-gateway, siwe, official

triggers

alchemy, blockchain data, token balances, nft, transfer history, token prices, portfolio, on-chain

curl -s https://eth-mainnet.g.alchemy.com/v2/$ALCHEMY_API_KEY \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'

curl -s https://eth-mainnet.g.alchemy.com/v2/$ALCHEMY_API_KEY \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"alchemy_getTokenBalances","params":["0x00000000219ab540356cbb839cbe05303d7705fa"]}'

curl -s https://eth-mainnet.g.alchemy.com/v2/$ALCHEMY_API_KEY \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"alchemy_getAssetTransfers","params":[{"fromBlock":"0x0","toBlock":"latest","toAddress":"0x00000000219ab540356cbb839cbe05303d7705fa","category":["erc20"],"withMetadata":true,"maxCount":"0x3e8"}]}'

curl -s "https://eth-mainnet.g.alchemy.com/nft/v3/$ALCHEMY_API_KEY/getNFTsForOwner?owner=0x00000000219ab540356cbb839cbe05303d7705fa"

curl -s "https://api.g.alchemy.com/prices/v1/$ALCHEMY_API_KEY/tokens/by-symbol?symbols=ETH&symbols=USDC"

curl -s -X POST "https://api.g.alchemy.com/prices/v1/$ALCHEMY_API_KEY/tokens/historical" \
  -H "Content-Type: application/json" \
  -d '{"symbol":"ETH","startTime":"2024-01-01T00:00:00Z","endTime":"2024-01-02T00:00:00Z"}'

curl -s -X POST "https://dashboard.alchemy.com/api/create-webhook" \
  -H "Content-Type: application/json" \
  -H "X-Alchemy-Token: $ALCHEMY_NOTIFY_AUTH_TOKEN" \
  -d '{"network":"ETH_MAINNET","webhook_type":"ADDRESS_ACTIVITY","webhook_url":"https://example.com/webhook","addresses":["0x00000000219ab540356cbb839cbe05303d7705fa"]}'

import crypto from "crypto";

export function verify(rawBody: string, signature: string, secret: string) {
  const hmac = crypto.createHmac("sha256", secret).update(rawBody).digest("hex");
  return crypto.timingSafeEqual(Buffer.from(hmac), Buffer.from(signature));
}

© LeoYeAI, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 93 other files (references) in skills/alchemy-official of LeoYeAI/openclaw-master-skills.

• SKILL.md
• AGENTIC-GATEWAY.md
• SOURCE.md
• _meta.json
• references/data-nft-api.md
• references/data-overview.md
• references/data-portfolio-apis.md
• references/data-prices-api.md
• references/data-simulation-api.md
• references/data-token-api.md
• references/data-transfers-api.md
• references/ecosystem-anchor.md
• references/ecosystem-ethers.md
• references/ecosystem-foundry.md
• references/ecosystem-hardhat.md
• references/ecosystem-metaplex.md
• references/ecosystem-overview.md
• references/ecosystem-rainbowkit.md
• references/ecosystem-solana-web3js.md
• references/ecosystem-spl-token.md
• … and 74 more

Open the folder on GitHubat commit e5199b5