x402-mcp: Agent for Claude Code

.claude/agents/x402-archivist.md

x402-archivist is an agent for Claude Code from kwizzlesurp10-ctrl/x402-mcp. It costs 54 tokens per session (529 once invoked), scanned A, original, no licence file.

A caching agent for x402 operations, which are paid requests made through the x402 payment protocol. It checks for previously fetched data before a paid fetch and stores data after payment.

In plain words
What is it for?
Use it before paid data retrieval to check the cache and after payment to store the fetched bytes.
Why use it?
It prevents paying twice for the same data and avoids refetching the Bazaar during its cache period.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter.

This is kwizzlesurp10-ctrl/x402-mcp's own configuration. It tells Claude Code how to work on x402-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything x402-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to kwizzlesurp10-ctrl/x402-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/kwizzlesurp10-ctrl/x402-mcp/master/.claude/agents/x402-archivist.md
Clone the repo
git clone --depth 1 https://github.com/kwizzlesurp10-ctrl/x402-mcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for x402-archivist

README.md
[![agentmods](https://agentmods.dev/badge/agents/kwizzlesurp10-ctrl/x402-mcp/x402-archivist/github.svg)](https://agentmods.dev/agents/kwizzlesurp10-ctrl/x402-mcp/x402-archivist)
Your own site
<a href="https://agentmods.dev/agents/kwizzlesurp10-ctrl/x402-mcp/x402-archivist"><img src="https://agentmods.dev/badge/agents/kwizzlesurp10-ctrl/x402-mcp/x402-archivist/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for x402-archivist

Your own site · 80×15
<a href="https://agentmods.dev/agents/kwizzlesurp10-ctrl/x402-mcp/x402-archivist"><img src="https://agentmods.dev/badge/agents/kwizzlesurp10-ctrl/x402-mcp/x402-archivist.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 529 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00054 $0.00529
Opus 5 $0.00027 $0.00264
Sonnet 5 $0.00011 $0.00106
Haiku 4.5 $0.00005 $0.00053

Measured 9d ago against content hash b803b1d2b527, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

x402-archivist scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/agents/x402-archivist.md · 40 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 40 lines · 54 tokens per session scan A b803b1d2b527

Subscribe to this mod's changes

x402-archivist is an agent published in the GitHub repository kwizzlesurp10-ctrl/x402-mcp (1 stars, last pushed yesterday), with no licence file. It adds 54 tokens to every session and 529 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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