The conscience layer for autonomous agents.
A structured, queryable REST API that gives AI agents access to a user's beliefs, worldview, values, and faith-based preferences — so agents can make decisions aligned with who that person actually is.
The Problem
AI agents are making decisions on behalf of humans — without understanding what those humans believe, value, or practice.
An agent booking travel doesn't know about Shabbat. It optimizes for price, not for arriving before sundown on Friday.
An agent ordering groceries doesn't know about halal restrictions. It picks the cheapest option, not the permissible one.
An agent managing investments doesn't know about riba prohibition. It maximizes returns without regard for ethical screens.
An agent making ethical trade-offs doesn't know if you're a deontologist or utilitarian. It has no moral compass to reference.
Guardrails fills this gap.
The 7 Domains
Every Guardrails profile organizes a person's values across seven structured domains — queryable independently or together.
Prayer schedules, holy days, dietary laws, tithing rules, and sacred time boundaries.
Ethical orientation, moral foundations scores, and decision-making principles.
Heritage, language preferences, cultural celebrations, and community obligations.
Veganism, minimalism, sustainability pledges, and daily routines.
Interest policies, investing screens, charitable giving, and debt philosophy.
Advance directives, blood transfusion preferences, organ donation, and care priorities.
Social issue stances, policy priorities, activism, and civic engagement.
API Reference
Simple, predictable REST endpoints. JSON in, JSON out. Authenticated with bearer tokens and user consent.
| Method | Endpoint | Description | Cost |
|---|---|---|---|
| GET | /v1/profiles/{user_id} | Get Full Profile | $0.05 |
| GET | /v1/profiles/{user_id}/domains/{domain} | Query Single Domain | $0.01 |
| GET | /v1/profiles/{user_id}/check | Compatibility Check | $0.005 |
| POST | /v1/profiles/{user_id}/decide | Decision Support | $0.10 at base tier |
| GET | /v1/profiles/{user_id}/calendar | Faith-Aware Calendar | $0.02 |
| POST | /v1/profiles | Create Profile | $0.005 |
| GET | /v1/taxonomies/{domain} | Get Taxonomies | $0.005 |
Interactive Playground
Click "Run Request" to see how Guardrails responds. These are realistic mock responses showing the API in action.
Request
/v1/profiles/usr_demo/check?query=halal&item=beef_jerky_brand_x
Response
Request
/v1/profiles/usr_demo/decide
Body
Response
Request
/v1/profiles/usr_demo/domains/financial_ethics
Response
Request
/v1/profiles/usr_demo
Response
Universal Integration
Guardrails is a standard REST API with a comprehensive OpenAPI specification. Any AI agent — regardless of platform — can use it.
OpenAI / GPT
Import our OpenAPI spec as function definitions. GPT agents call Guardrails endpoints via tool-use.
Anthropic / Claude
Define Guardrails endpoints as tools. Claude's tool-use calls our REST API directly.
Salesforce Agentforce
Register Guardrails as an External Service via our OpenAPI spec. Available to any Agentforce topic.
Any Agent
If your agent can make HTTP requests, it can use Guardrails. No SDK required. No protocol lock-in.
OpenAPI Specification
A well-documented OpenAPI 3.1 spec that any agent platform can consume directly.
openapi: 3.1.0
info:
title: Guardrails API
version: 1.0.0
description: The conscience layer for autonomous agents.
servers:
- url: https://api.useguardrails.com/v1
paths:
/profiles/{user_id}:
get:
operationId: getProfile
summary: Get a user's full Guardrails profile
/profiles/{user_id}/domains/{domain}:
get:
operationId: getDomain
summary: Query a single domain
/profiles/{user_id}/check:
get:
operationId: checkCompatibility
summary: Quick compatibility check
/profiles/{user_id}/decide:
post:
operationId: getDecision
summary: Values-aligned decision support
/profiles/{user_id}/calendar:
get:
operationId: getCalendar
summary: Faith-aware calendar
/profiles:
post:
operationId: createProfile
summary: Create a new profile
/taxonomies/{domain}:
get:
operationId: getTaxonomy
summary: Get domain optionsPricing
Every API call is metered. The more you use, the less you pay per call. No monthly fees, no commitments.
| Monthly API Calls | Per-Call Rate | Estimated Monthly Cost |
|---|---|---|
| 1 – 10,000 | $0.02 | $0.02 – $200 |
| 10,001 – 100,000 | $0.015 | $150 – $1,500 |
| 100,001 – 500,000 | $0.01 | $1,000 – $5,000 |
| 500,001 – 1,000,000 | $0.007 | $3,500 – $7,000 |
| 1,000,001+ | $0.005 | Contact us |
Every API call is billed at the rate for your current monthly volume tier. As your usage grows within a billing cycle, your per-call rate automatically decreases.
The /decide endpoint uses AI reasoning and costs 5x the standard per-call rate for your tier (e.g., $0.10 at the base tier).
Need custom volume pricing, SLAs, on-prem deployment, or dedicated support? contact@useguardrails.com
Explore Guardrails
Deep-dive into how Guardrails works across 7 value domains, 7 API endpoints, and 12 real-world use cases.
Prayer schedules, holy days, dietary laws, tithing rules, and sacred time boundaries.
Ethical orientation, moral foundations scores, and decision-making principles.
Heritage, language preferences, cultural celebrations, and community obligations.
Veganism, minimalism, sustainability pledges, and daily routines.
Interest policies, investing screens, charitable giving, and debt philosophy.
Advance directives, blood transfusion preferences, organ donation, and care priorities.
Social issue stances, policy priorities, activism, and civic engagement.
Retrieve a user's complete Guardrails profile across all permitted domains.
Retrieve data from one specific domain of a user's profile.
Quick yes/no check if a product, service, or action is compatible with a user's values.
Pass a scenario with options and get a values-aligned recommendation.
Get a user's upcoming religious observances, blocked times, and holy days.
Create a new Guardrails profile for a user.
Retrieve the structured taxonomy of options for a specific domain.
An AI grocery agent that automatically filters products by halal certification.
A travel agent that respects Sabbath boundaries when booking flights and hotels.
A financial agent that screens investments against the user's ethical filters.
A healthcare agent that honors patient values in advance directive decisions.
A meal-planning agent that respects dietary philosophy and sustainability goals.
A calendar agent that blocks prayer times and religious observances automatically.
An AI assistant that adapts tone, greetings, and formality to cultural norms.
A content moderation agent that applies the user's personal moral standards.
A giving agent that schedules donations aligned with faith and financial commitments.
A shopping agent that enforces sustainability pledges on every purchase.
An event-planning agent that respects every attendee's dietary and scheduling constraints.
A news agent that curates content based on the user's actual values, not engagement metrics.