Security and privacy
AgentStamp: review, pricing, data and alternatives
AgentStamp is an open-source tool for people registering or checking agent identities. It verifies signed attestations, calculates reputation scores, provides access to a public registry, and exports audit histories. A free tier exists; the first paid plan costs 0 USDC pay as you go. Access and transparency score: 68/100, #2 of 7 in its category.
| Access | 25/30 | |
|---|---|---|
| Openness | 30/30 | |
| Trust | 13/40 |
What is AgentStamp?
AgentStamp is an open-source tool for people registering or checking agent identities. It verifies signed attestations, calculates reputation scores, provides access to a public registry, and exports audit histories.
According to its documentation, AgentStamp lets you:
- register an agent’s identity
- verify a signed attestation
- calculate a reputation score
- view a public registry of agents
- export an audit history
We file it under Security and privacy, the category of tools to protect data and AI applications, and it also overlaps with developer tools. The category lists 7 verified tools on this site.
The publisher is Vinay Bhosle, entrepreneur individuel exerçant sous le nom AgentStamp, based in India.
Who is it for?
It is mostly useful to these profiles: developers. The need it covers is simple to state: protect data and AI applications.
AgentStamp is a good candidate if:
- you want to try before paying
- you plan to connect it to your tools or automations through its API
- you want to read the code or host it yourself
The best test is a concrete case from your daily work: if the tool does not beat your current method within a week, move on to an alternative.
How much does AgentStamp cost?
Pricing model: open source (public code). A free plan is offered, usually limited in volume or features.
The first paid plan costs 0 USDC pay as you go (Issuance of a Bronze stamp, payment per request via x402), according to the pricing page, checked on October 24, 2026.
To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.
Data and privacy
The publisher does not clearly state where data is hosted. Assume your content may leave your region.
For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.
Exporting your content: yes (details on the official site). Being able to get your data back makes switching tools easier later.
Three habits apply to every AI tool:
- turn off the use of your content for training if the option exists
- use a work account separate from your personal account
- review everything the tool produces before publishing or sending it
Platforms, languages and API
AgentStamp runs on: web browser and API.
Interface languages: English.
A public API lets you call it from your own programs or an automation tool, and plug it into an AI agent.
The source code is public: vinaybhoslevinaybhosle/agentstamp.
How we scored it
Our 68/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.
| Criterion | Points | What counts |
|---|---|---|
| Access | 25/30 | free tier, published price, French interface |
| Openness | 30/30 | API, data export, open code |
| Trust | 13/40 | identified publisher, declared hosting, age, presence in reference lists |
The full calculation is explained on our method page.
Comparison with alternatives
AgentStamp against other tools in the security and privacy category:
| Tool | Free | Entry price | API | Score |
|---|---|---|---|---|
| AgentStamp | Yes | 0 USDC pay as you go | Yes | 68 |
| DeepCode AI | Yes | $25 per month | Yes | 68 |
| NeuralTrust | Yes | $49 per month | Yes | 68 |
| InterLock by Context Data | Yes | not published | Yes | 68 |
| PentAGI | Yes | not published | – | 63 |
| Lakera | Yes | not published | Yes | 58 |
| Gemma Guard | Yes | not published | – | 58 |
Verdict
AgentStamp is among the most accessible and transparent tools in its category.
Strengths
- Free tier to try it
- Public API
- Public source code
Limitations
- Data hosting not disclosed
Avoid if…
- You handle sensitive personal data without a processing agreement
Alternatives
- DeepCode AIfree tier
- NeuralTrustfree tier
- InterLock by Context Datafree tier
- PentAGIfree tier
- Lakerafree tier
- Gemma Guardfree tier
Categories and jobs
Learn more
Frequently asked questions
Is AgentStamp free?
Yes, a free plan exists, with usage limits. The first paid plan costs 0 USDC pay as you go.
Where is AgentStamp data stored?
The publisher does not clearly say so in its public documentation.
Does AgentStamp have an API?
Yes, a public API is documented.
What are the alternatives to AgentStamp?
In the same category: DeepCode AI, NeuralTrust, InterLock by Context Data, and PentAGI.
AgentStamp or DeepCode AI: which one to choose?
AgentStamp starts at 0 USDC pay as you go, DeepCode AI at $25 per month and our score is 68/100 for AgentStamp and 68/100 for DeepCode AI. Try both on the same task before paying.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score