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Verifiable Claim Seed logo
Health: ActiveRecent health check succeeded.Last checked 9/7/2026, 7:50:02 PM

Verifiable Claim Seed

User RatingsBe the first to rate and review this MCP server! Enrichment pendingWe haven’t run our AI enrichment pass on this listing yet, so the overview, use cases, and FAQ below may be sparse or missing. We work through the catalog over time — check back soon.
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Zero-dependency verifiable-claims MCP: validate safely, verify with allow_execution, self-test.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to CursorAdd to VS Code
Not yet automatically verified

We haven't yet run this listing's install command through our automated sandbox check. This isn't a red flag — we're steadily working through the catalog.

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment
Target File:~/Library/Application Support/Claude/claude_desktop_config.json
claude_desktop_config.json
{
  "mcpServers": {
    "verifiable-claim-seed": {
      "command": "uvx",
      "args": [
        "verifiable-claim-seed"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Install Directory Badge Claim listing Alternatives💻 More in Developer Tools

Documentation Overview

verifiable-claim-seed

Machine-checkable claim contract + zero-dependency gate + real sample. 可复现≠可验证: repro+frozen prove internal consistency; external correctness is carried by the anchor. Agent-first: read ai-catalog.json before this file for the machine-readable manifest.

mcp-name: io.github.elwsls/verifiable-claim-seed

install

Terminal
pip install verifiable-claim-seed     # zero dependencies, Python stdlib only
verify-claim self-test                # prove the gate works in this environment

Or clone the repo and run the gate directly:

sh
python3 verifiable_claim_seed/verify_claim.py self-test

entrypoints

rolepath
contractverifiable_claim_seed/schema/verifiable-claim-v1.schema.json
gateverifiable_claim_seed/verify_claim.py
real sample·航天verifiable_claim_seed/claims/VC-20260815-001.json(ISS 轨道高度,derived+frozen+repro)
real sample·健康verifiable_claim_seed/claims/VC-20260823-001.json(1 万步起源,text-quote 锚)· verifiable_claim_seed/claims/VC-20260823-002.json(步数-死亡趋平,text-quote 锚)
frozen dataverifiable_claim_seed/data/iss_20260814.tle
source snapshotsverifiable_claim_seed/data/wcrf-10000-steps-20260823.html(001 源快照)· verifiable_claim_seed/data/pmc-9289978-20260823.html(002 源快照)
repro scriptverifiable_claim_seed/scripts/verify_iss.py
MCP serververifiable_claim_seed/mcp_server.py(stdio,命令 verifiable-claim-mcp / verifiable-claim-seed)
MCP agent simverifiable_claim_seed/mcp_agent_sim.py(模拟陌生 agent 走完整 MCP 链路,零人工可用验证)
MCP registry manifestserver.json(io.github.elwsls/verifiable-claim-seed,PyPI/stdio)
exhibit·概念docs/news-appendix.md(人类样张,非机器声明——verify_tier 独立于 schema tier,不参与门禁)
exhibit·新闻稿docs/news-release-10000-steps.md(人类样张·新闻稿,非机器声明,对应 VC-20260823-001/002)
exhibit·学术声明docs/academic-claim-10000-steps.md(人类样张·学术声明,非机器声明,对应 VC-20260823-001/002)

verify

sh
verify-claim self-test                              # pip 安装后
verify-claim verify <claim.json> [--report out.json]
# 仓库内直接跑:
python3 verifiable_claim_seed/verify_claim.py self-test

退出码:0 全过 / 1 硬失败(结构/格式/声明引用的文件缺失) / 2 用法·环境(命令行实参/待验证声明文件缺失) / 3 证据契约违规(哈希失配/复现不符)。

路径语义:声明内 data//scripts/ 路径相对包根(gate 脚本所在目录)解析,非相对声明 JSON。验证外部拷来的单文件声明前请保持完整仓库结构,或把整个声明放回 verifiable_claim_seed/claims/。 text-quote 锚带字节快照:anchor.mode=text-quote 必须带 quote + locator + snapshot + snapshot_sha256(source snapshot 文件路径 + 64 位哈希)。gate 逐字节核验快照哈希,并抽取快照文本做「排版字符归一化 + 去空白」的紧凑比对——逐字引用句须真实存在于冻结快照(HTML 实体/渲染空格不会误报)。机器核的是"引用句在这份快照里";快照是否确为现实源头仍须人工/AI 核。 repro.script 为 Python:repro.script 由 python3 执行(subprocess,120s 超时)——脚本必须是 Python。无沙箱:门禁不隔离,路径可穿越包根,且以调用者权限运行;安全完全依赖"只验证你信任的声明"。 零依赖说明:verify_claim.py 是实际校验器(纯 stdlib,不依赖 jsonschema 库);schema/*.json 是契约规格——两者由 self-test 的「schema-gate 契约同步」例机器核验不漂移。anchor.sha256 同样被钉死:指向仓库内文件即逐字节核验(失配 rc3)。 安全注意:verify 会真实执行声明中的 repro.script。只验证你信任的声明;验证来源不受信的声明等于在本机执行其声明的任意代码。 设计边界:门禁验"脚本按其声明输出",不验"脚本计算正确"——伪造 repro.script 打印正确哈希 + 期望数值即可通过 rc0。完整性来自冻结输入字节(anchor/frozen)与声明自洽,非数学。"只验证你信任的声明"因此是安全前提,不是装饰。

MCP server

verifiable-claim-mcp(或 registry 启动别名 verifiable-claim-seed)暴露三工具(stdio,零依赖):

  • self_test — gate 自检,PASS/FAIL + case 数
  • validate — 结构 + 哈希检查,不执行脚本(对不受信声明用这个)
  • verify — 完整校验,须显式 allow_execution=true(会执行声明内 repro.script,即任意代码);无该标志一律拒绝

MCP registry:server.json(io.github.elwsls/verifiable-claim-seed,PyPI/stdio)。

Claude Code 接线(pip install 后)——项目根放 .mcp.json(仓内已带示例),新会话自动加载三工具:

config.json
{ "mcpServers": { "verifiable-claim-seed": { "command": "python3", "args": ["verifiable_claim_seed/mcp_server.py"] } } }

也可用 uvx verifiable-claim-seed(PyPI 发布后)。陌生 agent 端到端已验证:发现三工具 → validate 零执行 → verify 缺 allow_execution 拒 → 带标志过。

License: MIT. Zero dependencies (Python stdlib).

Read the full README →View source on GitHub →

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Frequently Asked Questions about Verifiable Claim Seed

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "verifiable-claim-seed": { "command": "npx", "args": ["-y", "verifiable-claim-seed"] } }

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Technical Specs & Signals

Category💻Developer Tools
More technical detailsExpand ▾
TransportSTDIO
RuntimePython
Last updatedSep 7, 2026
Views0
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36Quality signal: Fair · 36/100How this signal is calculated ▾
Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20
Documentation & tools16/30
Adoption & activity1/15
Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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