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Agent skill

Alchemy SDK Patterns

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Route Alchemy work to viem, direct Data APIs, Wallet APIs v5, or Solana Web3.js without reviving the archived SDK.

MITAuto-check passedBusiness, Finance & HR

Install Alchemy SDK Patterns

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill alchemy-sdk-patterns -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace alchemy-sdk-patterns --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/alchemy-sdk-patterns .claude/skills/alchemy-sdk-patterns && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
alchemy-sdk-patterns
GitHub stars
2.8k
Token cost
~1.2k tokens
SKILL.md length
541 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Route Alchemy work to viem, direct Data APIs, Wallet APIs v5, or Solana Web3.js without reviving the archived SDK.

  • Works in 6 steps: Inventory each existing call by… → Assign Node RPC calls to a typed viem… → Assign NFT, Transfers, Prices,… → …
  • Designing shared clients and adapters
  • SKILL.md covers Overview, Prerequisites, Current Contract and Authentication, plus 8 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Alchemy SDK Patterns is an agent skill from jeremylongshore/tons-of-skills-marketplace. Route Alchemy work to viem, direct Data APIs, Wallet APIs v5, or Solana Web3.js without reviving the archived SDK. Use when designing shared clients and adapters. Trigger with "Alchemy SDK pattern", "replace alchemy-sdk", or "choose an Alchemy client".

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/official-docs.md`). Compatibility notes: Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval

It sits in Business, Finance & HR, covering Crypto and DeFi analysis. It works with viem and wagmi and Solana. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.

When your agent uses it

  • Designing shared clients and adapters
  • With Alchemy SDK pattern
  • Replace alchemy-sdk
  • Choose an Alchemy client

Example prompts

  • “Alchemy SDK pattern”
  • “replace alchemy-sdk”
  • “choose an Alchemy client”
  • “/alchemy-sdk-patterns”

Requirements

  • Compatibility (from SKILL.md): Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval
  • Pre-approved tools (allowed-tools): Read, Glob, Grep, Write, Edit

Workflow steps

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

  1. Inventory each existing call by capability, chain, runtime, side effect, data owner, and credential class.
  2. Assign Node RPC calls to a typed viem public client and keep the configured chain adjacent to the transport.
  3. Assign NFT, Transfers, Prices, Simulation, or Portfolio calls to a narrow HTTP adapter that validates the documented response and…
  4. Assign smart-wallet creation and transaction flows to the current Wallet APIs v5 surface; isolate signing policy from data reads.
  5. Represent partial success, pagination, retryability, and unsupported-chain outcomes explicitly instead of returning null or an untyped…
  6. Add contract fixtures for success and every documented failure class, then ban new alchemy-sdk imports with a focused repository test.

What it can do on your machine

Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Glob
    • Grep
    • Write
    • Edit

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

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

  • Network

    No URLs in SKILL.md.

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

  • Credentials

    Names no API keys, tokens, secrets or passwords.

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

  • Compatibility

    Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval

    From compatibility in the SKILL.md frontmatter.

Context cost

Alchemy SDK Patterns loads about 1.2k tokens when it runs, and up to ~2k if it reads all its reference files. Until then it costs about 68 tokens; SKILL.md has 541 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~68
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~2k

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

Auto-check passed

The automated check found no risky patterns in SKILL.md.

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 jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 541 words, ~1,223 tokens.

Download SKILL.mdSave it as .claude/skills/alchemy-sdk-patterns/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
alchemy-sdk-patterns
description
Route Alchemy work to viem, direct Data APIs, Wallet APIs v5, or Solana Web3.js without reviving the archived SDK. Use when designing shared clients and adapters. Trigger with "Alchemy SDK pattern", "replace alchemy-sdk", or "choose an Alchemy client".
allowed-tools
Read, Glob, Grep, Write, Edit
compatibility
Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval
argument-hint
<capability> <runtime> <chain-set>
version
2.0.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, alchemy, architecture, viem
model
inherit
effort
high

Alchemy Client and API Routing Patterns

Overview

Route Alchemy work to viem, direct Data APIs, Wallet APIs v5, or Solana Web3.js without reviving the archived SDK. This workflow produces a reviewable artifact and negative-path evidence before any live side effect.

Prerequisites

  • Current first-party Alchemy documentation for the selected product, chain, feature, client, authentication method, limit, and lifecycle.
  • Named product, application, security, data/privacy, budget, release, and operations owners appropriate to the requested scope.
  • Synthetic or approved non-production fixtures, a credential canary, explicit success criteria, and a tested rollback boundary.

Current Contract

There is no single current JavaScript Alchemy SDK for every product. EVM Node reads belong behind a viem transport adapter, Data APIs behind response-contract adapters, transacting applications behind Wallet APIs v5, and Solana behind Solana Web3.js. The archived alchemy-sdk is migration input, not a new architecture choice.

Authentication

Each adapter declares the credential it accepts and rejects other credential classes. Keep application keys, Admin access keys, Notify tokens, webhook signing keys, and wallet signing authority in separate types and secret paths.

Instructions

  1. Inventory each existing call by capability, chain, runtime, side effect, data owner, and credential class.
  2. Assign Node RPC calls to a typed viem public client and keep the configured chain adjacent to the transport.
  3. Assign NFT, Transfers, Prices, Simulation, or Portfolio calls to a narrow HTTP adapter that validates the documented response and pagination contract.
  4. Assign smart-wallet creation and transaction flows to the current Wallet APIs v5 surface; isolate signing policy from data reads.
  5. Represent partial success, pagination, retryability, and unsupported-chain outcomes explicitly instead of returning null or an untyped provider exception.
  6. Add contract fixtures for success and every documented failure class, then ban new alchemy-sdk imports with a focused repository test.

Tool Discipline

Use Read, Glob, and Grep to inspect current documentation, configuration, code, fixtures, and evidence. Use Write and Edit only for approved repository artifacts. Skill invocation alone does not authorize network access, credentials, wallet addresses, customer data, plan changes, spend, key creation or rotation, webhook changes, deployment, replay, transaction construction, signing, broadcast, or deletion.

Show full SKILL.md (196 more words)Show less

Approval Boundaries

Architecture owns capability routing and adapter boundaries. Security owns credential types and signing policy. Replacing a production provider or transaction path requires a canary and rollback approval.

Error Handling

  • Do not wrap every Alchemy product in a generic client that erases pagination, partial errors, or credential distinctions.
  • Do not convert a partial Portfolio response into complete success.
  • Do not let a read adapter gain wallet signing authority for convenience.

Output

Return the call inventory, capability routing table, typed adapter contracts, credential separation, error algebra, fixture matrix, deprecated-import gate, migration order, and rollback boundaries. Mark assumptions, observations, source dates, environment-specific behavior, owners, and unresolved gaps explicitly.

Examples

  • Route eth_getBalance through a viem public client while routing multi-chain holdings through a Portfolio adapter that surfaces partialErrors.
  • Keep Wallet APIs transaction construction behind a separately approved signer boundary rather than extending a generic read client.

Validation

Exercise and record expected and observed results for:

  • unsupported chain
  • partial Portfolio success
  • pagination continuation
  • rate limit
  • wrong credential class
  • archived import reintroduced

Resources

  • Current first-party evidence map — recheck dated Alchemy sources before execution.
  • Treat observed account, application, network, indexer, chain, or provider behavior as environment-specific evidence, never a universal guarantee.

© jeremylongshore, 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 1 other file (references) in skills/.curated/alchemy-sdk-patterns of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/official-docs.md

Open the folder on GitHubat commit cfae287

Compare with similar skills

Alchemy SDK Patterns next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Alchemy SDK Patterns compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Alchemy SDK Patterns this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.2kAutomated safety check: PassMIT
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Solana Skillnpc-live/clawfirm156—~1kAutomated safety check: PassNone
Metaplexelophanto/EloPhanto106—~1.6kAutomated safety check: PassApache-2.0
Trading Signalbinance/binance-skills-hub1.1k—~682Automated safety check: PassNone
Squadsinternet-court/internet-court-skill6.6k2 repos~5.9kAutomated safety check: PassApache-2.0

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Works with

Categories

Questions about Alchemy SDK Patterns

What does Alchemy SDK Patterns do?

Route Alchemy work to viem, direct Data APIs, Wallet APIs v5, or Solana Web3.js without reviving the archived SDK. Alchemy SDK Patterns is an agent skill from jeremylongshore/tons-of-skills-marketplace.js without reviving the archived SDK.

When should I use Alchemy SDK Patterns?

Alchemy SDK Patterns fits situations like: designing shared clients and adapters; with Alchemy SDK pattern; replace alchemy-sdk; choose an Alchemy client.

How do I install Alchemy SDK Patterns in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill alchemy-sdk-patterns -a claude-code`. Or copy the skill folder (skills/.curated/alchemy-sdk-patterns in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/alchemy-sdk-patterns in your project. Claude Code loads it when a task matches its description.

How do I install Alchemy SDK Patterns in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill alchemy-sdk-patterns -a codex`. Or copy the skill folder (skills/.curated/alchemy-sdk-patterns in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/alchemy-sdk-patterns in your project. Codex loads it when a task matches its description.

Can I use Alchemy SDK Patterns in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill alchemy-sdk-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/alchemy-sdk-patterns, .gemini/skills/alchemy-sdk-patterns, .github/skills/alchemy-sdk-patterns and .opencode/skills/alchemy-sdk-patterns in your project.

What does Alchemy SDK Patterns need to run?

SKILL.md names no scripts, command-line tools or credentials: Alchemy SDK Patterns is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code; live Alchemy access requires network access, an appropriate credential, account capacity, and explicit approval.

Does Alchemy SDK Patterns access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Alchemy SDK Patterns safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Alchemy SDK Patterns use?

Alchemy SDK Patterns is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Alchemy SDK Patterns use?

About 1.2k tokens (SKILL.md is roughly 4.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 795 tokens, read only when the agent opens those files.

What are the alternatives to Alchemy SDK Patterns?

Skills that share tags, products or a category with Alchemy SDK Patterns: Swapper Deposit (swapperfinance/swapper-toolkit, 852 stars), Solana Skill (npc-live/clawfirm, 156 stars), Metaplex (elophanto/EloPhanto, 106 stars) and Trading Signal (binance/binance-skills-hub, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Alchemy SDK Patterns?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.

Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.