プロトタイプ · プレビュー版:公式レジストリのすべてのサーバーを掲載し、30分ごとに同期しています。Google でログインするとレビューを書けます。プロトタイプ · 30分ごとに更新
PopNx MCPAIを使う人のためのMCPサーバー · やさしい言葉で解説

Overwing

作者:frod27バージョン 0.15.0i★ 0iパソコンでもクラウドでも
レジストリ名ai.overwing/mcp

インストール方法

What it does

Guardrails for LLM output: pass / fail / review verdicts and one recommended action. Hosted or npm.

  • Connects パソコンでもクラウドでも
  • Account or key Cloud: Works without a key · add Authorization if you have one (often raises limits) · Local: No key needed
  • Category 検索・AIの記憶

インストール

使っているAIアプリを選んで、設定をコピーしてください。

チェック 5/5 合格 · 質問内容は提供元のサーバー(overwing.ai)を通ります · ✓ コマンド確認済み 2026年11月14日

まず:どの AI を使っていますか?

使っているアプリを選ぶと、下に手順が表示されます。

Claude につなげます · 約 2 分

キー不要、インストール不要 · claude.ai かデスクトップアプリで一度設定すれば、チャットで使えます · 無料アカウントは 1 つまで · Team/Enterprise はオーナー(Owner)が追加

  1. Claude の Connectors ページを開く

    CustomizeConnectors

    CustomizeConnectors1Add2https://…3Add4
  2. 「Add」→「Custom」→「Web」を押し、この 2 つを入力

    ここからコピーして Claude の同じ名前の欄に貼り付け、Continue を押します

    Name · 名前Overwing
    Remote MCP server URL · アドレスhttps://overwing.ai/mcp

    Claude が検出したサインイン設定の画面で Continue を押す · Authentication は作者の説明どおり(Sign in now・Sign in when needed・No sign in)を選び Add を押します

  3. チャットで有効にする

    +ConnectorsOverwing

  4. 試してみる

    Overwing を使って、私に何ができるか教えて、1 つやってみせて

    ✓ Claude が Overwing を使っていると言うか、回答に Overwing のツール名が出れば接続成功です

メニュー名は 2026年11月11日 に Anthropic のヘルプページで確認 · アプリのバージョンにより画面が少し違うことがあります

ChatGPT との接続はプランしだい

フル MCP:Web 版 ChatGPT の Business・Enterprise・Edu · Pro:読み取り/取得の権限で接続、データを変えるツールは使えないことがあります · Plus:公式ドキュメントで未確認。プラグイン画面にカスタム MCP を追加する項目があれば試せます · Web のみ

  1. Web 版 ChatGPT で MCP の追加ページを開く

    Plugins+Add custom MCP server

    ChatGPTPlugins1+2https://…3Create4
  2. 名前とアドレスを入力

    名前を入れ、Connection にアドレスを貼り付け、注意事項にチェックして Create as a plugin を押します

    Name · 名前Overwing
    Connection · アドレスhttps://overwing.ai/mcp
  3. チャットで Overwing を選ぶ

    新しいチャットを開き、入力前にプラグインの一覧から Overwing を選びます

  4. 試してみる

    Overwing を使って、私に何ができるか教えて、1 つやってみせて

    ✓ ChatGPT が Overwing を使っていると言うか、回答に Overwing のツール名が出れば接続成功です

メニュー名は 2026年11月11日 に OpenAI のヘルプページで確認 · アプリのバージョンにより画面が少し違うことがあります

Claude Code につなげます · 約 2 分

キー不要、インストール不要

  1. ターミナルを開く

    Mac:Command+スペースで Terminal と入力 · Windows:PowerShell を開く

  2. このコマンドを貼り付けて Enter

    claude mcp add --transport http --scope user overwing https://overwing.ai/mcp
  3. Claude Code で /mcp と入力

    Overwing が一覧にあり、接続済みと表示されれば OK です

  4. 試してみる

    Overwing を使って、私に何ができるか教えて、1 つやってみせて

    ✓ Claude Code が Overwing を使っていると言うか、回答に Overwing のツール名が出れば接続成功です

メニュー名は 2026年11月11日 に Anthropic のヘルプページで確認 · アプリのバージョンにより画面が少し違うことがあります

Cursor につなげます · 約 2 分

キー不要、インストール不要

  1. このボタンで Cursor を開く

    Cursor で開く

    Cursor がインストールの確認をするので Install を押します

  2. Cursor の AI チャットを Agent モードで開く

  3. 試してみる

    Overwing を使って、私に何ができるか教えて、1 つやってみせて

    ✓ Cursor が Overwing を使っていると言うか、回答に Overwing のツール名が出れば接続成功です

メニュー名は 2026年11月11日 に Cursor のヘルプページで確認 · アプリのバージョンにより画面が少し違うことがあります

VS Code につなげます · 約 2 分

キー不要、インストール不要

  1. このボタンで VS Code を開く

    VS Code で開く

    VS Code がインストールの確認をするので Install を押します

  2. VS Code の AI チャットを Agent モードで開く

  3. 試してみる

    Overwing を使って、私に何ができるか教えて、1 つやってみせて

    ✓ VS Code が Overwing を使っていると言うか、回答に Overwing のツール名が出れば接続成功です

メニュー名は 2026年11月11日 に VS Code のヘルプページで確認 · アプリのバージョンにより画面が少し違うことがあります

Windsurf、Zed、Gemini CLI など MCP を使える他のアプリは追加方法がそれぞれ違います。アプリ一覧で確認してください

MCP を使えるアプリをすべて見る →

Web 経由でつなぐアプリ用のアドレス

アドレスhttps://overwing.ai/mcp

JSON 設定は下の「開発者向け」にあります

つまずいたら?Overwing を使っている人に聞いてみましょう💬 ディスカッション →
開発者向け:ターミナルのコマンドと JSON 設定

Web 経由

Claude Code

claude mcp add --transport http --scope user overwing https://overwing.ai/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "overwing": {
      "url": "https://overwing.ai/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "overwing": {
      "type": "http",
      "url": "https://overwing.ai/mcp"
    }
  }
}

パソコンにインストール

Claude Code

claude mcp add --scope user overwing -- npx -y overwing-mcp

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "overwing": {
      "command": "npx",
      "args": [
        "-y",
        "overwing-mcp"
      ]
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "overwing": {
      "command": "npx",
      "args": [
        "-y",
        "overwing-mcp"
      ]
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "overwing": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "overwing-mcp"
      ]
    }
  }
}

自分で入力する値

  • OVERWING_API_KEY 秘密 env
    Overwing organization key (ow_live_...). Optional: evaluate and atlas_lookup work without it, 10 a day each. Needed for higher limits, rule sets and Tower setup. Get one at https://overwing.ai/login…
  • OVERWING_AGENT_KEY 秘密 env
    Optional Overwing Tower agent key (ow_agent_...). Without it, the tower_create_agent tool mints one for the session
  • OVERWING_BASE_URL env
    Override the API base URL for self-hosted deployments (default https://overwing.ai)
  • Authorization 秘密 HTTP header
    Optional. "Bearer ow_live_..." lifts the free limits; evaluate and atlas_lookup work without it, 10 a day each

説明は英語の原文のままです。

この設定は、作者のレジストリ登録情報から作成しています。READMEと違う場合は、READMEに従ってください。

ひと目でわかる

週あたりのダウンロードi
106/週
確認済みドメイン
✓ overwing.ai
接続方法
パソコンでもクラウドでも
最新バージョンi
0.15.0
レジストリ公開日i
2026年10月14日
コードの最終更新i
2026年11月4日
作者
frod27
パッケージ
npm: overwing-mcp
ウェブサイト
overwing.ai
レジストリでの状態
有効

使えるアプリ

このサーバーのつなぎ方と、各アプリの公式ドキュメントに基づきます。2026年11月10日に確認。

インターネット経由でつなげるアプリ

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

パソコン上で動かせるアプリ

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

すべてのアプリと長所・短所 →

できること

ツールの名前と説明は、サーバーが2026年11月13日に返したそのままの内容です。書いたのは作者で、私たちではありません。プレーンテキストとして表示しています。

  • evaluate

    Works with no API key: 10 evaluations a day, inputs up to 2,000 characters, and the text is not stored. With a key: 250 a day and up, inputs up to 100,000 characters, and your own rule sets. Score any text (typically an LLM's output) against an Overwing rule set. The text can be

  • evaluate_batch

    Score up to 50 texts against one rule set in a single call. Each item counts as one evaluation. Returns a summary plus per-item verdicts; items can fail independently. Needs an organization key.

  • list_rule_sets

    List the prebuilt and custom rule sets available to this organization. Needs an organization key.

  • get_rule_set

    Fetch a rule set with its full rule definitions. Use 'content-safety' as a worked example when writing your own. Needs an organization key.

  • create_rule_set

    Create a custom rule set with 1 to 25 rules. Each rule is a choice (pick one option), score (position on an ordered scale), or noul (yes/no) question with a fail condition, optional review threshold, weight, and action (block, redact, or review) that callers should take when it f

  • get_evaluation

    Fetch a stored evaluation by id, including the original input and per-rule results. Needs an organization key.

  • list_evaluations

    List recent evaluations, newest first, with optional verdict and rule set filters. Use next_cursor to page. Needs an organization key.

  • get_usage

    Daily usage, remaining quota for today, and plan limits. Needs an organization key.

  • whoami

    Identify the organization and plan behind the API key on this request, the key's scope, the organization's data settings (store_inputs, retention_days), and whether billing is set up. Needs an organization key.

  • create_account

    Create an Overwing account for yourself, with no email: an organization and an API key, returned once. Nothing is sent to anyone. Use it when you have no key and nobody has given you one; do not create a second account if you already have a key (whoami says which account a key be

  • prove_domain

    Begin proving that your account controls a domain. For an account with no email the domain stands in for one: it raises the limits to the normal free tier, opens full Beacon reports, and lets a lost key be replaced. Returns one value to publish at the domain, as a DNS TXT record

  • verify_domain

    Look for the value prove_domain asked for, at the domain. Found: the domain is the account's. Not found: an error saying what was looked for; DNS changes can take a few minutes, and calling again is safe. Needs an organization key.

  • list_plans

    Public plan catalog: prices, daily limits, and per-minute burst limits. No API key needed.

  • atlas_lookup

    Say what a User-Agent string claims to be and whether the claim can be trusted, from the Overwing Atlas registry of AI crawlers, fetchers and browser agents. Returns the claimed agent, operator, purpose class, verification method (Web Bot Auth signature, user-agent string only, o

  • atlas_agents

    Browse or search Overwing Atlas, the registry of AI crawlers, fetchers and browser agents: name, operator, user-agent tokens, Web Bot Auth key directory, robots.txt behaviour, and (with Atlas Pro or Team) purpose class, verification, evasion flags and traffic shares. Filter by fr

  • atlas_register_agent

    Add an agent or crawler you operate to the Overwing Atlas registry, free, so a site that looks up its User-Agent learns who runs it. Give the agent's name, the operator (the company or person running it), the operator's domain, and the token the User-Agent carries (the product na

  • atlas_verify_registration

    Look for the proof at the operator's domain: the DNS TXT record or the file that atlas_register_agent asked for. Found: the entry is published in the registry, or held for a person when the operator name already belongs to someone. Not found: an error saying what was looked for;

  • atlas_list_registrations

    The agents this organization has registered in Overwing Atlas, newest first, each with its status (pending_verification, pending_review, published, rejected) and, while unverified, the value to publish at the domain. Needs an organization key.

  • atlas_withdraw_registration

    Withdraw a registration. A published entry leaves the registry, so lookups stop naming the agent; an unfinished request is abandoned. This cannot be undone: register again to put it back. Needs an organization key.

  • atlas_summary

    Public numbers from Overwing Atlas: registry counts by purpose and verification, published browser-agent traffic shares, sector field-scan headlines (e.g. how many OSINT sites carry AI-crawler rules or any agent-payable surface), and the summary of the Agent Consumers report on w

  • beacon_start

    Overwing Beacon answers one question about a site: is this product reachable by agents? It checks robots.txt rules for AI agents, llms.txt, the sitemap, the MCP server card, hosted MCP endpoint and MCP Registry listing, the A2A agent card, OpenAPI discovery, and how the home page

  • beacon_report

    The report for a check started with beacon_start. The first call runs the check. With an Overwing key on the connection: score (0 to 100), verdict (yes, partly, no), the find / read / use answers, every check with what was found and a fix when it did not pass, and top_fixes ranke

  • cad_create

    Makes a real CAD part from a description: a bracket, an enclosure, an adapter, a jig. Overwing writes a parametric script, builds it with a CAD kernel, measures it, checks it against what was asked, and stores a STEP file and STL files for 30 days. Costs 300 credits a part from t

  • cad_get

    With an id from cad_create: the job's status. While it is building, ask again in about 20 seconds. When complete: the title, the script, the measurements, the checks that were run, part_url (a page showing the part in 3D with download buttons; give this to the person) and files_u

  • feedback

    Send one message to the people who run Overwing: a verdict you think was wrong, an error you could not act on, a payment you could not make, a tool that did not do what its description says. Read by a person, not answered automatically; give a contact if you want an answer. No ke

  • beacon_sample

    A real Overwing Beacon report, free: the check of overwing.ai itself, refreshed daily. Read it to see exactly what a full report holds before starting a check. No key needed.

  • preflight_payment

    Call this with the 402 you were given, before signing an x402 payment. It reads the terms (network, asset, amount, payee, timeout, resource) and answers allow, review or refuse with reasons: the terms against your policy, the payee against x402-list's directory (verified delivery

  • preflight_check

    Call this before signing any Solana transaction. Overwing Preflight simulates the unsigned transaction against the chain as it is now, works out what it would take from the wallet you name (SOL, tokens, and control of its token accounts) and answers allow or refuse against your p

  • preflight_verdict

    The public record of one Preflight verdict: its decision, reason codes, the programs the transaction would run, the transaction's digest, our signature, and every landed transaction reported against it. Never the wallet, the amounts or the transaction. No key needed.

  • preflight_report

    After a transaction that Preflight allowed has landed, report its signature. Preflight reads the landed transaction from the chain and says whether the allow held: not_a_miss, or miss when it took more from the wallet than the policy permitted. The outcome is published. A covered

  • preflight_record

    Everything Preflight has said and how it held up: counts of verdicts and misses, every miss with what the chain showed, the latest verdicts, and what the guarantee's reserve holds. Read it before deciding whether to rely on Preflight. No key needed.

  • preflight_overview

    The reference for Overwing Preflight: every policy field, every reason code a refusal can carry, what a verdict does and does not promise, the price, and the terms of the guarantee. Read it once before the first preflight_check. No key needed.

  • tower_load_template

    Set up Overwing Tower for this organization by loading the starter workflow: email purchase order to order entry, with create_order, update_order and cancel_order against a mock IBM i system, and a starter policy. Idempotent. Needs an organization key. Returns a sample input you

  • tower_create_agent

    Create a scoped agent identity and its key. Needs an organization key. Scope it to the operations the agent needs (for example create_order) rather than * where you can. The key (ow_agent_...) is returned once, in this result, and this server does not keep it: store it, and send

  • tower_list_agents

    List this organization's Tower agents with scopes, status and last use. Keys are never returned. Needs an organization key.

  • tower_revoke_agent

    Revoke an agent. Its key stops working at once and cannot be restored. Needs an organization key.

  • tower_capabilities

    List the operations this agent is allowed to call, each with the JSON Schema its input must match and its compensating operation. Call this first; build inputs from the schema rather than guessing. Needs an agent key.

  • tower_decide

    Ask Tower how it would rule on an operation without doing anything: auto (would execute), review (a person must approve), or reject. Returns the score, the reason, and each policy question's answer. No side effects. Needs an agent key.

  • tower_submit_action

    Ask Tower to perform an operation on the legacy system. Tower decides: executed (done), pending (a person must approve; poll tower_get_action, do not resubmit), or rejected (do not retry unchanged). Always send an idempotency_key that is stable for this business request, such as

  • tower_get_action

    Status and result of an action: pending, approved, executed, failed, compensated, or rejected. Use it to poll an action that is waiting on human review. Needs an agent key.

  • tower_compensate

    Run the compensating operation for an executed action, for example cancel the order that create_order made. Runs once; repeating it returns the first outcome. Needs an agent key.

  • tower_get_receipt

    Fetch one signed receipt by id or by sequence number: the payload, its hash, the previous link's hash, and the Ed25519 signature. Needs an agent key.

  • tower_verify_receipts

    Recompute every hash and check every signature over a range of this organization's receipts. Reports the first break, if any. Defaults to the whole chain (up to 5,000 links per call). Needs an agent key.

基本チェックi

誰でも見られる情報をチェックしており、コードは読んでいません。当てはまらない項目は数に入れていません。 · 2026年11月14日にチェック

  • ✓ 合格

    作者とリポジトリが一致

    レジストリ名はドメイン overwing.ai で確認済みです(レジストリがドメインの所有を確認しています)

  • ✓ 合格

    今もメンテナンスされている

    コードの最終更新:10 日前

  • ✓ 合格

    ライセンスがある

    MITを使用

  • ✓ 合格

    エンドポイントが応答する

    151ミリ秒で応答(HTTP 200)

  • – 対象外

    OAuthでサインイン

    サインイン不要

  • ✓ 合格

    ツールの説明に隠れた指示がない

    43件のツールの説明を読み、AIへの隠れた指示は見つかりませんでした

話し合い

質問、コツの共有、使えないことの報告ができます。「役に立った」の多い順です。

まだ投稿はありません。最初の質問や共有をどうぞ。

ここの投稿は利用者によるもので、PopNx チームのものではありません。

Google でログインして投稿

ユーザーレビュー

まだレビューはありません

Google でログインしてレビューを書く

検索・AIの記憶のほかのサーバーとの比較i

  • このカテゴリのほかの6096件のうち0%よりスターが多い
  • このカテゴリのほかの6096件のうち54%より最近レジストリに公開
  • 基本チェックの結果が、このカテゴリのほかの6096件のうち100%と同じかそれ以上

レジストリでこのカテゴリにある有効なすべてのサーバーと比較しています。スターは、公開者がリポジトリの所有者である場合だけ数えます。

よくある質問

Overwingは安全ですか?

当てはまる基本チェック5項目のうち5項目に合格しました。コードは読んでいません。キーやトークンを追加する前に、サーバーがどんなアクセスを求めているかを確認し、必要な権限だけを持つキーを使ってください。

どんなキーやコードが必要ですか?

レジストリには必須のキーは載っていません。ただし、最初に使うときにサインインを求めるサーバーもあります。

パソコンで動きますか、それともクラウドですか?

どちらでも使えます。パソコンにインストールしても、クラウド版につないでもかまいません。

今もメンテナンスされていますか?

GitHubリポジトリの最終更新は10 日前、最新バージョン(0.15.0)がレジストリに届いたのは31 日前です。

どのアプリで使えますか?

Claude Desktop、Claude Code、Cursor、VS CodeなどのMCP対応アプリで使えます。URL で接続するので、リモート MCP を受け付けるアプリでも使えます。例:Web 版 ChatGPT(Business 以上はフル MCP、Pro は読み取りのみ)。

代わりに使えるものは?

同じカテゴリには:Context7, Codebase Memory, OpenSEO

同じカテゴリのほかの候補

同じカテゴリで、ほかの作者が作ったサーバー。スターの多い順。

カードの見方:↓ 週あたりのダウンロードi★ GitHubスターi3つの柱:レビュー · チェック · 利用状況i更新=最新バージョンをレジストリに公開した日i

Context7

Up-to-date docs for AI agents

作者:upstash広く使われている↓ 125万/週★ 6.5万一昨日更新

パソコンでもクラウドでも

Codebase Memory

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

作者:DeusData広く使われている↓ 1.7万/週★ 4.9万28 日前更新

パソコンで動く

OpenSEO

Keyword research, site audits, rank tracking and AI visibility for your AI agent.

作者:every-app広く使われている★ 2.8万今日更新

クラウドで動く✓ everyapp.com

作者のREADME

READMEを開く

作者のリポジトリから書かれたとおりにコピーしたものです。PopNx MCPは内容を確認・推奨していません。HTML、画像、スクリプトは取り除いています。リンクはこのサイトの外へ移動します。

Guardrails for LLM output, as MCP tools.

Score any text for safety and quality. Get pass / fail / review verdicts with calibrated confidence, usually in under 500 ms.

简体中文 · 日本語 · 한국어


Overwing is an API that checks what your model said before it ships. This package exposes it to any MCP-capable agent: Claude Desktop, Claude Code, Cursor, Windsurf, VS Code, OpenAI's Agents SDK, and anything else that speaks the Model Context Protocol.

  • Real verdicts, not vibes. Every rule returns a typed answer, a probability, and a confidence. fail means a rule matched; review means it was unsure; pass means neither.
  • Prebuilt `content-safety` and `outbound-message` rule sets: toxicity, personal data, confidential leaks, self-harm, sexual content, severity. Or write your own rules in plain language.
  • Built for agents. Sign up, pay, evaluate, rotate keys, and cancel, all as JSON. No CAPTCHA, no browser required. See overwing.ai/llms.txt.

Try it without installing anything: paste text into the console at overwing.ai.

Hosted, no install

The same 41 tools are served at https://overwing.ai/mcp (Streamable HTTP). Point any client that takes a remote MCP URL at it:

claude mcp add --transport http overwing https://overwing.ai/mcp

No key is needed for evaluate, atlas_lookup, atlas_summary, list_plans, create_account, the three beacon_ tools, and preflight_verdict, preflight_report, preflight_record and preflight_overview. For the rest, send Authorization: Bearer ow_live_... on the connection.

Install

It works with no API key: evaluate and atlas_lookup each run 10 times a day free, and text sent without a key is not stored. For more, get a key at overwing.ai/login, or let your agent make its own account with the create_account tool. That account has no email: nothing is sent to anyone, and the key is returned once. The same call from a shell:

curl -X POST https://overwing.ai/api/v1/signup

Put the key in OVERWING_API_KEY. An account with no email starts at 50 evaluations a day; proving a domain (prove_domain, verify_domain) raises it to the normal free limits and makes a lost key recoverable.

Claude Code

claude mcp add overwing -e OVERWING_API_KEY=ow_live_... -- npx -y overwing-mcp

Claude Desktop, Cursor, Windsurf, VS Code (any JSON-configured client)

{

"mcpServers": { "overwing": { "command": "npx", "args": ["-y", "overwing-mcp"], "env": { "OVERWING_API_KEY": "ow_live_..." } } } }

Set OVERWING_BASE_URL to point at a self-hosted deployment. Requires Node 20+.

For Overwing Tower, set OVERWING_AGENT_KEY=ow_agent_... to operate as an existing agent. Without it, tower_create_agent mints a key with the organization key and keeps it in memory for the session.

evaluate, atlas_lookup, atlas_summary and list_plans work with no key at all.

For Overwing Preflight, preflight_check needs OVERWING_API_KEY; the other preflight_ tools need no key. No Preflight tool takes a private key, and none should ever be given one.

The text can be in any language. It was tested on 2026-09-29 in Spanish, Portuguese, French, German, Japanese, Simplified Chinese, Korean, Arabic and Hindi: a small test, not a benchmark. Results come back in English.

Tools

ToolWhat it does
evaluateScore one text against a rule set. Returns the verdict, a recommended_action (block, redact, review, or allow), aggregate score, confidence, latency, and per-rule results with each rule's action. Takes an optional context object (recipient, channel, ownership) that context-aware rule sets such as outbound-message read, and store: false to run the check without keeping the text.
evaluate_batchScore up to 50 texts in one call, with a summary and per-item verdicts and recommended actions.
list_rule_sets · get_rule_set · create_rule_setBrowse the prebuilt set or define your own rules: yes/no questions, classifications, or scored scales.
get_evaluation · list_evaluationsRead stored results, filter by verdict or rule set, page with a cursor.
create_account · prove_domain · verify_domainAn account for the agent itself, with no email: create_account returns a key and sends nothing to anyone. Proving a domain (a DNS TXT record or a file) takes the place of the email: it raises the limits, opens full Beacon reports, and makes a lost key recoverable.
atlas_lookupOverwing Atlas: say what a User-Agent string claims to be and whether the claim can be trusted (Web Bot Auth, spoofable string, or unattributable). Works with no key, 10 a day; 100 a day with a free key.
atlas_agents · atlas_summarySearch the registry of AI crawlers, fetchers and browser agents; get traffic shares, sector field-scan headlines, and the agent-spending summary.
atlas_register_agent · atlas_verify_registration · atlas_list_registrations · atlas_withdraw_registrationAdd an agent you operate to the Atlas registry, free, so a lookup of its User-Agent names you. Register it, publish the value you are given at the operator's domain (a DNS TXT record or a file), then verify. Needs OVERWING_API_KEY.
beacon_start · beacon_report · beacon_sampleOverwing Beacon: is a site reachable by agents? Checks robots.txt, llms.txt, the MCP server card, endpoint and Registry listing, the A2A agent card and OpenAPI, and how the home page reads to a model. A check is free: beacon_start returns an id and beacon_report runs the check and returns the report. With OVERWING_API_KEY it is the full report, saved to your dashboard; with no key it is the summary (the score, the three answers and the first fix). beacon_sample is a real report in full.
feedbackTell the people who run Overwing what went wrong: a wrong verdict, an error you could not act on, a payment you could not make. No key needed.
preflight_checkOverwing Preflight: should the agent sign this Solana transaction? Give it the unsigned transaction in base64 and a policy: the wallet to protect, the most SOL that may leave it (max_sol_out, fees included, or max_sol_out_lamports), and optionally max_token_out, min_token_in, allowed_programs and allow_delegation. It simulates the transaction and answers allow or refuse with every reason. Sign only on allow; a refusal, an error or anything else means do not sign. A verdict is valid for about two minutes. It never takes a private key. One check counts as one evaluation. Needs OVERWING_API_KEY.
preflight_paymentShould the agent sign this x402 payment? Reads the 402's terms and checks the payee against x402-list's directory and the server's own manifest, and the price against the record. allow, review or refuse with reasons. No key needed.
preflight_verdict · preflight_report · preflight_record · preflight_overviewPreflight's public side, with no key: read one published verdict, report the transaction that landed after a verdict (by its signature) to learn whether the verdict held, read the record of every verdict and miss, and read the overview of policy fields, reason codes, limits and prices.
tower_load_template · tower_create_agent · tower_list_agents · tower_revoke_agentOverwing Tower setup, with the organization key: load the starter order-entry workflow, then mint a scoped agent identity. The new agent key is used for the rest of the session.
tower_capabilities · tower_decide · tower_submit_action · tower_get_action · tower_compensateOverwing Tower operations, with the agent key: see which operations you may call and their input schemas, ask how a request would be ruled, submit it (executed, pending human review, or rejected), poll it, undo it.
tower_get_receipt · tower_verify_receiptsRead a signed receipt, or recompute every hash and signature in the chain.
get_usage · whoami · list_plansToday's quota, the org behind the key, and the public plan catalog.

The overwing://guide resource returns the full plain-text API guide.

Data handling and security

What this server does on your machine: it reads three environment variables (OVERWING_API_KEY, OVERWING_AGENT_KEY, OVERWING_BASE_URL) and makes HTTPS requests to the Overwing API. It reads no files, runs no commands, and talks to no other host. It has two runtime dependencies (@modelcontextprotocol/sdk, zod), and the whole server is one file: src/index.ts.

What happens to text you evaluate:

  • It is sent to the Overwing API, and from there to TypeSafe, whose Jev model produces the verdict. It is not used to train models.
  • Without a key the text is never stored.
  • With a key the text, context and verdict are stored so you can read them back with get_evaluation, until you delete them. To change that:
  • pass store: false to evaluate or evaluate_batch to keep no text or context for that call;
  • set store_inputs: false on the organization (PATCH /api/v1/org, or the dashboard) to keep none at all;
  • set retention_days on the organization to delete evaluations after that many days.
  • A Solana transaction you check with preflight_check is sent to the Overwing API with its policy, and simulated against a Solana node. What is published is the verdict: its id, decision, reason codes, programs and the transaction's digest. Never the wallet, the amounts or the transaction. No private key is ever sent, and the tool does not accept one.
  • Traffic is encrypted in transit (TLS) and the database is encrypted at rest (AES-256).

Give your agent a restricted key. A key with scope evaluate can run checks and read rule sets, and cannot read stored evaluations, change rule sets, manage keys, webhooks or billing, or delete anything:

curl -X POST https://overwing.ai/api/v1/api-keys \

-H "Authorization: Bearer ow_live_..." -H "Content-Type: application/json" \ -d '{"name":"agent","scope":"evaluate"}'

Overwing is a young service and has not had an independent security audit. The full picture, including subprocessors and what we have not done, is at overwing.ai/security; the privacy policy is at overwing.ai/privacy. To report a vulnerability, see SECURITY.md.

Example

Ask your agent:

Check this reply before I send it: "Reach me at dana@example.com or 555-0142 to sort out the refund."

It calls evaluate and gets back:

Verdict: FAIL  score=0.82  confidence=0.97  251ms

toxicity: pass (answer="safe", confidence=1) pii_detected: fail (answer=true, confid

冒頭だけを表示しています。続きはリポジトリで読めます