# Ammune API Discovery vs RealmGuard: side-by-side comparison (2026)

[Ammune API Discovery](https://cybersectools.com/tools/ammune-api-discovery) is a commercial [API security](https://cybersectools.com/categories/api-security) solution by [Ammune.ai](https://cybersectools.com/companies/ammuneai). [RealmGuard](https://cybersectools.com/tools/realm-labs-platform) is a commercial [LLM guardrails](https://cybersectools.com/categories/llm-guardrails) solution by [Realm Labs](https://cybersectools.com/companies/realm-labs). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best API Security Solutions for Business](https://cybersectools.com/shortlists/best-api-security-solutions) picks Akamai API Security, Salt Security Salt Collect, Cloudflare API Shield and 4 more.

## Side-by-side comparison

| | Ammune API Discovery | RealmGuard |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | API Security | LLM Guardrails |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Ammune.ai | Realm Labs |
| Headquarters | – | – |

### Use cases and capabilities

| | Ammune API Discovery | RealmGuard |
|---|---|---|
| Bot Protection | Yes | – |
| DDoS | Yes | – |
| OWASP | Yes | Yes |
| WAF | Yes | – |
| LLM Guardrails | – | Yes |
| LLM Security | – | Yes |
| Prompt Injection | – | Yes |
| AI Firewall | – | Yes |
| GenAI Security | – | Yes |
| Content Filtering | – | Yes |
| PII | – | Yes |
| AI Compliance | – | Yes |
| AI Governance | – | Yes |

### Core features

**Ammune API Discovery**

10 features listed. Sign in on the page to see them.

**RealmGuard**

10 features listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Ammune API Discovery](https://cybersectools.com/tools/ammune-api-discovery) fits if you want a cloud product.
- [RealmGuard](https://cybersectools.com/tools/realm-labs-platform) fits if you need both cloud and on-premises options.

## Ammune API Discovery vs RealmGuard FAQ

Common questions when comparing Ammune API Discovery vs RealmGuard for API security.

### What is the difference between Ammune API Discovery and RealmGuard?

**Ammune API Discovery**: API security platform with discovery, WAF, bot protection, and DDoS defense. Built by Ammune.ai.

**RealmGuard**: AI guardrail platform detecting harmful outputs, prompt injections & policy violations. Built by Realm Labs.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Ammune API Discovery and RealmGuard?

**Ammune API Discovery** is made by Ammune.ai. **RealmGuard** is made by Realm Labs. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Ammune API Discovery a good alternative to RealmGuard?

In part. Ammune API Discovery and RealmGuard are not in the same category on CybersecTools. Both cover OWASP. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Ammune API Discovery vs Wallarm API Security](https://cybersectools.com/compare/ammune-api-discovery-vs-wallarm-api-security)
- [Ammune API Discovery vs Imperva API Security](https://cybersectools.com/compare/ammune-api-discovery-vs-imperva-api-security)
- [Ammune API Discovery vs Indusface AppTrana - API Protection](https://cybersectools.com/compare/ammune-api-discovery-vs-indusface-apptrana-api-protection)
- [RealmGuard vs Wallarm API Security](https://cybersectools.com/compare/realm-labs-platform-vs-wallarm-api-security)
- [RealmGuard vs Imperva API Security](https://cybersectools.com/compare/imperva-api-security-vs-realm-labs-platform)
- [RealmGuard vs Indusface AppTrana - API Protection](https://cybersectools.com/compare/indusface-apptrana-api-protection-vs-realm-labs-platform)

## Alternatives to each

- [See all Ammune API Discovery alternatives](https://cybersectools.com/alternatives/ammune-api-discovery)
- [See all RealmGuard alternatives](https://cybersectools.com/alternatives/realm-labs-platform)

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Source: https://cybersectools.com/compare/ammune-api-discovery-vs-realm-labs-platform

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More on Ammune API Discovery and RealmGuard: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md