Agent skill

Chainbase Openapi Skill

by holon-run in holon-run/uxc

Operate Chainbase indexed wallet and token reads through UXC with a curated OpenAPI schema, API-key auth, and read-first guardrails.

MITAuto-check passedBackend & APIs

Install Chainbase Openapi Skill

skills CLI
$ npx skills add holon-run/uxc --skill chainbase-openapi-skill -a claude-code

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

GitHub CLI
$ gh skill install holon-run/uxc chainbase-openapi-skill --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/holon-run/uxc.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/chainbase-openapi-skill .claude/skills/chainbase-openapi-skill && 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
chainbase-openapi-skill
GitHub stars
115
Used in
1 other repo
Token cost
~1k tokens
SKILL.md length
313 words
Files
5 (incl. scripts, references)
Skills in repo
62
Repo updated
First seen
Licence
MIT

At a glance

Operate Chainbase indexed wallet and token reads through UXC with a curated OpenAPI schema, API-key auth, and read-first guardrails.

  • Works in 4 steps: Use the fixed link command by default → Inspect operation schema first → Prefer narrow account validation before… → …
  • Tasks that involve OpenAPI specifications
  • SKILL.md covers Prerequisites, Scope, Authentication and Core Workflow, plus 3 more sections
  • Runs Shell scripts from its folder; reaches api.chainbase.online; needs CHAINBASE_API_KEY

What it does

Chainbase Openapi Skill is an agent skill from holon-run/uxc. Operate Chainbase indexed wallet and token reads through UXC with a curated OpenAPI schema, API-key auth, and read-first guardrails.

Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including scripts and reference files (for example `agents/openai.yaml`, `references/chainbase-web3.openapi.json` and `references/usage-patterns.md`).

It sits in Backend & APIs, covering OpenAPI specifications. It works with OpenAPI. The repository describes itself as: A unified CLI for discovering and invoking tools across OpenAPI, MCP, GraphQL, gRPC, and JSON-RPC. The licence is MIT.

When your agent uses it

  • Tasks that involve OpenAPI specifications

Example prompts

  • “/chainbase-openapi-skill”

Requirements

  • A Bash shell
  • A credential in CHAINBASE_API_KEY

Workflow steps

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

  1. Use the fixed link command by default
  2. Inspect operation schema first
  3. Prefer narrow account validation before broader reads
  4. Execute with key/value parameters

What it can do on your machine

Read from SKILL.md and the folder at commit 562d47c. 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

    Ships 1 file in scripts/ (Shell), which the agent can run.

    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:

    • api.chainbase.online

    Also links to:

    • docs.chainbase.com

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

  • Credentials

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

    • CHAINBASE_API_KEY

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

Context cost

Chainbase Openapi Skill loads about 1k tokens when it runs, and up to ~3.5k if it reads all its reference files. Until then it costs about 39 tokens; SKILL.md has 313 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~39
When it runs · the whole SKILL.md, loaded when a task matches
~1k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~3.5k

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); the scripts in this folder are not scanned.

SKILL.md

The full file from holon-run/uxc at commit 562d47c, republished under its MIT licence (© holon-run). 313 words, ~1,027 tokens.

Download SKILL.mdSave it as .claude/skills/chainbase-openapi-skill/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.
name
chainbase-openapi-skill
description
Operate Chainbase indexed wallet and token reads through UXC with a curated OpenAPI schema, API-key auth, and read-first guardrails.

Chainbase Web3 API Skill

Use this skill to run Chainbase indexed data operations through uxc + OpenAPI.

Reuse the uxc skill for shared execution, auth, and error-handling guidance.

Prerequisites

  • uxc is installed and available in PATH.
  • Network access to https://api.chainbase.online.
  • Access to the curated OpenAPI schema URL:
    • https://raw.githubusercontent.com/holon-run/uxc/main/skills/chainbase-openapi-skill/references/chainbase-web3.openapi.json
  • A Chainbase API key.

Scope

This skill covers a read-first indexed data surface:

  • account native balance lookup
  • account token balances
  • account transaction history
  • token metadata
  • token holder reads
  • token price lookup
  • transaction detail lookup

This skill does not cover:

  • raw chain RPC methods
  • write or transaction submission flows
  • the broader Chainbase data product surface beyond the selected Web3 API reads

Authentication

Chainbase uses X-API-KEY header auth.

Configure one API-key credential and bind it to api.chainbase.online:

bash
uxc auth credential set chainbase \
  --auth-type api_key \
  --api-key-header X-API-KEY \
  --secret-env CHAINBASE_API_KEY

uxc auth binding add \
  --id chainbase \
  --host api.chainbase.online \
  --scheme https \
  --credential chainbase \
  --priority 100

Validate the active mapping when auth looks wrong:

bash
uxc auth binding match https://api.chainbase.online

Core Workflow

  1. Use the fixed link command by default:

    • command -v chainbase-openapi-cli
    • If missing, create it: uxc link chainbase-openapi-cli https://api.chainbase.online --schema-url https://raw.githubusercontent.com/holon-run/uxc/main/skills/chainbase-openapi-skill/references/chainbase-web3.openapi.json
    • chainbase-openapi-cli -h
  2. Inspect operation schema first:

    • chainbase-openapi-cli get:/v1/account/balance -h
    • chainbase-openapi-cli get:/v1/account/tokens -h
    • chainbase-openapi-cli get:/v1/token/metadata -h
  3. Prefer narrow account validation before broader reads:

    • chainbase-openapi-cli get:/v1/account/balance chain_id=1 address=0xd8da6bf26964af9d7eed9e03e53415d37aa96045
    • chainbase-openapi-cli get:/v1/token/price chain_id=1 contract_address=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48
    • chainbase-openapi-cli get:/v1/tx/detail chain_id=1 tx_hash=0x4e3f3bc239f496f59c3e4d4a4d5f10f7f0d6d9f4cd790beeb520d05f6f7d98ae
  4. Execute with key/value parameters:

    • chainbase-openapi-cli get:/v1/account/tokens chain_id=1 address=0xd8da6bf26964af9d7eed9e03e53415d37aa96045 page=1 limit=20
    • chainbase-openapi-cli get:/v1/token/holders chain_id=1 contract_address=0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48 page=1 limit=20

Operation Groups

Account Reads
  • get:/v1/account/balance
  • get:/v1/account/tokens
  • get:/v1/account/txs
Token And Transaction Reads
  • get:/v1/token/metadata
  • get:/v1/token/holders
  • get:/v1/token/price
  • get:/v1/tx/detail

Guardrails

  • Keep automation on the JSON output envelope; do not use --text.
  • Parse stable fields first: ok, kind, protocol, data, error.
  • Treat this v1 skill as read-only. Do not imply RPC write methods, mempool send, or signing support.
  • Chainbase has multiple product surfaces. This skill is intentionally limited to indexed HTTP reads on https://api.chainbase.online.
  • Start with small page and limit values before building large crawls.
  • chainbase-openapi-cli <operation> ... is equivalent to uxc https://api.chainbase.online --schema-url <chainbase_openapi_schema> <operation> ....

References

© holon-run, 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 4 other files (scripts, references) in skills/chainbase-openapi-skill of holon-run/uxc.

  • SKILL.md
  • agents/openai.yaml
  • references/chainbase-web3.openapi.json
  • references/usage-patterns.md
  • scripts/validate.sh

Open the folder on GitHubat commit 562d47c

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in holon-run/uxc, which our catalogue first saw on October 7, 2026.

Compare with similar skills

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Works with

Categories

Questions about Chainbase Openapi Skill

What does Chainbase Openapi Skill do?

Operate Chainbase indexed wallet and token reads through UXC with a curated OpenAPI schema, API-key auth, and read-first guardrails. Chainbase Openapi Skill is an agent skill from holon-run/uxc. Operate Chainbase indexed wallet and token reads through UXC with a curated OpenAPI schema, API-key auth, and read-first guardrails.

When should I use Chainbase Openapi Skill?

Chainbase Openapi Skill fits situations like: tasks that involve OpenAPI specifications.

How do I install Chainbase Openapi Skill in Claude Code?

Run `npx skills add holon-run/uxc --skill chainbase-openapi-skill -a claude-code`. Or copy the skill folder (skills/chainbase-openapi-skill in holon-run/uxc) into .claude/skills/chainbase-openapi-skill in your project. Claude Code loads it when a task matches its description.

How do I install Chainbase Openapi Skill in Codex?

Run `npx skills add holon-run/uxc --skill chainbase-openapi-skill -a codex`. Or copy the skill folder (skills/chainbase-openapi-skill in holon-run/uxc) into .agents/skills/chainbase-openapi-skill in your project. Codex loads it when a task matches its description.

Can I use Chainbase Openapi Skill 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 holon-run/uxc --skill chainbase-openapi-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/chainbase-openapi-skill, .gemini/skills/chainbase-openapi-skill, .github/skills/chainbase-openapi-skill and .opencode/skills/chainbase-openapi-skill in your project.

What does Chainbase Openapi Skill need to run?

Going by SKILL.md and its folder, Chainbase Openapi Skill needs a shell for the scripts in its folder and credentials named CHAINBASE_API_KEY. Our summary lists: A Bash shell; A credential in CHAINBASE_API_KEY.

Does Chainbase Openapi Skill access the network?

SKILL.md names 2 domains. In commands or code: api.chainbase.online; the agent is likely to contact it when it follows the instructions. As links in the text: docs.chainbase.com. This is read from the text; nothing was executed.

Is Chainbase Openapi Skill 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Chainbase Openapi Skill use?

Chainbase Openapi Skill is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Chainbase Openapi Skill use?

About 1k tokens (SKILL.md is roughly 4.1k 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 2.5k tokens, read only when the agent opens those files.

What are the alternatives to Chainbase Openapi Skill?

Skills that share tags, products or a category with Chainbase Openapi Skill: ToolJet Marketplace Plugin Builder (ToolJet/ToolJet, 41k stars), Step Parts (earthtojake/text-to-cad, 18k stars), API Designer (Jeffallan/claude-skills, 12k stars) and OpenAPI to MCP Server (mcp-use/mcp-use, 11k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Chainbase Openapi Skill?

holon-run (a GitHub organization) maintains it in holon-run/uxc, which has 115 GitHub stars. The repository holds 62 skills in this directory. The repository was last updated on September 15, 2026.

Source: holon-run/uxc on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.