Opportunities › Security guardrails for autonomous agents › Proposed app
Tether Gate
Limit your AI agent's tools to what you actually asked it to do
- Score
- 43
- confidence 41
- Evidence
- 4
- items on the page
- Rivals
- 1
- named in sources
- First version
- 35 d
- estimate
- Type
- Desktop and mobile
- PWA: on computers and phones alike
- Market since
- 2025
- New market · AI estimate
ScreensConcept
Desktop and mobile: Teams configure policies and audit logs at a desk, but approvals and phone-based oversight happen on mobile to gate agent actions in real time. Sample screens on a computer and a phone, in the proposed brand. Their numbers are sample data.
New plan
Awaiting approval3 tools
About this appAI proposal
Tether Gate sits between your autonomous AI agent and its tools. You state a request in plain words, Tether Gate turns it into a short plan of allowed tools and actions, you approve it, and the plan is signed. Anything the agent tries outside that plan is refused and logged.
Built for people who give agents access to email, calendar and files and worry about unintended actions. The boundary is enforced outside the agent, at each tool call, rather than relying on the agent's own design.
Every approved plan is a signed record, so you can check later what was allowed, attempted and blocked. Teams can share policies and keep one audit trail across agents.
- Tagline
- Your agent does what you asked. Nothing more.
- Voice
- PreciseCalmDirect
- Why this name
- A tether keeps something useful from drifting away; a gate checks each call. Two plain words that say bounded access.
In the first version
Members say which features they would use. It tells PWAS what people want; it changes no score.
Intent to plan
Turns your request into a list of the tools and actions needed. You edit and approve it before the agent starts.
No member yet
Signed tool boundary
Each approved plan is signed. Tool calls are checked against it, so the agent cannot widen its own permissions.
No member yet
Block and explain
Out-of-plan calls are rejected with a clear reason. Allow one once, add it to the plan, or keep it blocked.
No member yet
Audit log
A searchable record of every plan, allowed call and blocked attempt, with export for review.
No member yet
Brand identityAI proposal
Check the name against trademark registers before using it.
Palette
#12372FDeep Pine · primary#F6F3ECBone · surface#17201DInk · text#E0A100Signal Amber · accent#B3392EStop Red · data: blocked#4F8A6BMoss · data: allowed
Typography
Aa
Tether Gate
PricingAI proposal
The material gives no competitor prices. Tiers follow the suggested freemium model and are a starting point to test.
Free
Free
- One agent
- Intent plans and tool blocking
- 7-day audit log
Pro
$12 a month
- Up to 5 agents
- Phone approvals
- 90-day audit log and export
Team
$49 a month
- Shared policies
- Unlimited agents
- Audit export
- Priority support
Would you pay Pro · $12 a month?
Your answer tells PWAS which prices people accept. It changes no score.
No answers yet.
What it could be worthEstimate
What a software business making this much sells for today, from real deals. Pick a monthly revenue.
If it makes
Worth about
$190,000
Sale range $132,000 to $263,000
$120,000 a year in revenue
From 87 software businesses listed and sold on Empire Flippers in the last year, revenue vetted by the broker: they sell for about 19× their monthly revenue, most between 13× and 26×.
Measured on profit, the middle deal is 32× monthly net profit: about 2.7 years of profit.
An estimate, not an offer or financial advice. A real price depends on profit, growth, churn, how much of the work is the owner's, and the buyer.
How it would growAI proposal
How the product would reach new customers through its own use, and how the first ones would be found. A plan to test, not a result.
- Built-in loop
- No loop in the product. Reached through developer communities, docs and the open-source connector. Users' agents do not expose the product to others, so growth relies on content and word of mouth.
- Do they become customers?
- Open-source users can upgrade to paid audit and team features. Test whether solo users pay for audit logs or only teams do.
- First customers
- Developers and small teams running OpenClaw-style agents with email, calendar and file access, starting with teams of 2 to 10 people.
- Where to reach them
- Hacker News and Show HN: Post the free connector and a demo of a blocked out-of-plan call, in the thread where the need appeared.
- OpenClaw community: Offer the plugin to users in their forums and chat, and gather setup feedback.
- Developer blog posts: Write short guides on limiting agent tool access, linking to the free tier.
- First milestone
- Ten active free users and three paying teams within 60 days of the connector release.
Why people already pay for this
- VerifiedHacker News post received 18 points and 5 comments
- Public claimUsers running OpenClaw agents with multi-tool access worry about unintended agent behavior
- AI inferenceExisting agents lack intent-based tool use restrictions
- AI inferenceA market exists for agent security products
Tech stack
Every proposal builds on the same PWA base, installable from the browser on any phone or computer. Dashed boxes are what this app adds.
- AppNext.js and TypeScript
- PWAManifest and service worker
- UITailwind CSS
- Data and authSupabase Postgres
- PaymentsStripe
- EmailResend
- HostingVercel
- This app · SigningEd25519 signatures via a standard crypto libraryPlans must be signed and verified on every tool call.
- This app · Enforcement proxySmall open-source tool-call proxy or pluginThe boundary must sit outside the agent, in the call path.
RisksAI inference
- TechnicalEnforcement only works if every tool call passes through the proxy. Agents with direct access can bypass it, so setup per agent type must be tested.
- AIThe model may draft plans that are too broad or too narrow, and users may approve without reading them.
- PlatformDepends on how OpenClaw and other agents expose tool calls; changes could break the connector.
- CommercialEvidence is a single post with 18 points and 5 comments. Willingness to pay is untested, and a free open-source plugin exists.
- RegulatoryClaims of cryptographic guarantees must be precise: signing proves the plan, not that the agent behaves safely.
Everything marked AI proposal or AI inference was written by a model from the evidence on the opportunity page. The proposed name must be checked against trademark registers before it is used.