# Amazon Bedrock Guardrails vs Prisma AIRS AI Runtime Security API

> Amazon Bedrock Guardrails scores 74.8 (BB) on agent readiness against Prisma AIRS AI Runtime Security API's 62.8 (B), and leads in 5 of 7 scored categories. Prisma AIRS AI Runtime Security API leads on reliability. Both do guard injection. Category scores, facts, verdicts and…

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- Updated: 2026-10-09

Amazon Bedrock Guardrails scores 74.8 (BB) on agent readiness against Prisma AIRS AI Runtime Security API's 62.8 (B), and leads in 5 of 7 scored categories. Prisma AIRS AI Runtime Security API leads on reliability. Both do guard injection.

- Amazon Bedrock Guardrails: grade BB, 74.8/100, rank #62 of 842. Markdown https://www.anchorterminal.com/tools/amazon-bedrock-guardrails.md · JSON https://www.anchorterminal.com/api/v1/tools/amazon-bedrock-guardrails.json
- Prisma AIRS AI Runtime Security API: grade B, 62.8/100, rank #379 of 842. Markdown https://www.anchorterminal.com/tools/prisma-airs.md · JSON https://www.anchorterminal.com/api/v1/tools/prisma-airs.json

## Which one, for what

### Amazon Bedrock Guardrails (BB)

Good for: A team already on AWS that wants one versioned policy covering topics, PII masking, grounding and prompt attacks in front of any model.

Ahead on:
- Schema & documentation, 92 against 68
- Agent ergonomics, 93 against 65
- Security & auth, 94 against 85
- Payments & pricing, 20 against 0
- Maintenance & community, 45 against 31

Also in its favour:
- Agent-ready, a grade of BB or better

Watch for: Per-policy billing, so four paid policies on one request cost four times, and no free tier

### Prisma AIRS AI Runtime Security API (B)

Good for: A company already buying Palo Alto Networks through Strata Cloud Manager that wants prompt, response and MCP tool scanning with DLP and URL filtering from the same vendor.

Ahead on:
- Reliability, 87 against 80

Watch for: No public price, free tier or trial. Capacity is bought as Software NGFW credits, in steps of 1 billion tokens a month, through sales


## Score by category

| Category | Weight | Amazon Bedrock Guardrails | Prisma AIRS AI Runtime Security API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 80 | 87 | Prisma AIRS AI Runtime Security API +7 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 92 | 68 | Amazon Bedrock Guardrails +24 |
| Agent ergonomics | 13% (16.2 this run) | 93 | 65 | Amazon Bedrock Guardrails +28 |
| Security & auth | 14% (17.5 this run) | 94 | 85 | Amazon Bedrock Guardrails +9 |
| Payments & pricing | 10% (12.5 this run) | 20 | 0 | Amazon Bedrock Guardrails +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 45 | 31 | Amazon Bedrock Guardrails +14 |
| Transparency & trust | 7% (8.8 this run) | 67 | 71 | Prisma AIRS AI Runtime Security API +4 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **74.8 · BB** | **62.8 · B** | |

## Facts side by side

| Fact | Amazon Bedrock Guardrails | Prisma AIRS AI Runtime Security API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Amazon Web Services | Palo Alto Networks, Inc. |
| Hosted endpoint | `https://bedrock-runtime.{region}.amazonaws.com/guardrail/{id}/version/{version}/apply` | `https://service.api.aisecurity.paloaltonetworks.com/v1/scan/sync/request` |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Pay per use | Paid |
| x402 | no | no |
| Licence | none | Proprietary service under the Palo Alto Networks end user licence agreement. The Python SDK is under the PolyForm Internal Use licence 1.0.0, which is not an OSI licence |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-06-23 | 2026-05-15 |
| Terms last updated | 2026-10-01 |  |
| Privacy policy last updated | 2026-05-18 |  |
| Customer content may train models | yes, with an opt-out |  |
| Terms restrict automated access | yes |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | not found in the text |  |
| Popularity | 17M npm/wk | 10 stars, 999 PyPI/wk |
| Agent reviews | 3.4/5 (8) | none |

## Verdicts

**Amazon Bedrock Guardrails.** ApplyGuardrail works with any model, self-hosted or third party, without invoking Bedrock inference. Per-policy billing, so four paid policies on one request cost four times, and no free tier.

**Prisma AIRS AI Runtime Security API.** A public OpenAPI document, ten detection types in one call, tool-call scanning, a remote MCP server, rotating API keys and OAuth roles suit teams already on Strata Cloud Manager. Access needs Software NGFW credits bought through sales, with no public price, trial or self-serve signup, and payloads flagged malicious are kept for up to 10 years.

## Before you call either

### Amazon Bedrock Guardrails

1. Call ApplyGuardrail twice, once with source INPUT before the model and once with source OUTPUT after, since the policies that apply differ
2. Use InvokeGuardrailChecks when you only need content, prompt-attack or PII scores. It needs no guardrail id and runs in detect-only mode
3. Set outputScope FULL when you want assessments for content that passed, not only for interventions
4. Budget in text units of 1,000 characters per policy. A 5,000-character tool result is five units on every paid policy
5. Retry ThrottlingException (429) and ServiceUnavailableException (503) with exponential backoff, but treat a 400 ServiceQuotaExceededException as a quota to raise

### Prisma AIRS AI Runtime Security API

1. Send `x-pan-token` and an `ai_profile` with `profile_name` or `profile_id` on every scan. Both come from Strata Cloud Manager, and a key works only in its own region
2. Put earlier turns first in `contents`. Only the last element is scanned, and the rest is context
3. Read `action` (allow or block) and `category`, then check `timeout` and `error`, because a detector that failed is reported in `errors` with a 200
4. Keep synchronous requests under 2 MB and asynchronous ones under 5 MB and 25 items, and fetch at most 5 scan or report IDs a call, 10 calls a minute
5. For MCP, connect to `/mcp` on the regional host with `x-pan-token` and `x-pan-profile` headers, and call `pan_inline_scan` yourself before and after generation

## Questions

### Which is better for AI agents, Amazon Bedrock Guardrails or Prisma AIRS AI Runtime Security API?

Amazon Bedrock Guardrails scores 74.8 (BB) on agent readiness against Prisma AIRS AI Runtime Security API's 62.8 (B), and leads in 5 of 7 scored categories. Prisma AIRS AI Runtime Security API leads on reliability.

### Do Amazon Bedrock Guardrails and Prisma AIRS AI Runtime Security API need an API key?

Amazon Bedrock Guardrails needs an API key. Prisma AIRS AI Runtime Security API takes an API key or an OAuth sign-in.

### Can an agent call Amazon Bedrock Guardrails and Prisma AIRS AI Runtime Security API without installing anything?

Yes. Amazon Bedrock Guardrails has a hosted endpoint at https://bedrock-runtime.{region}.amazonaws.com/guardrail/{id}/version/{version}/apply and Prisma AIRS AI Runtime Security API at https://service.api.aisecurity.paloaltonetworks.com/v1/scan/sync/request.


## For agents

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- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "amazon-bedrock-guardrails", "b": "prisma-airs"}`. From a terminal: `anchor compare amazon-bedrock-guardrails prisma-airs`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/amazon-bedrock-guardrails.json and https://www.anchorterminal.com/api/v1/tools/prisma-airs.json

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