Fact0

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AI Agent AI Developer Tools AI Workflow API Available Privacy-Focused For Developers For Enterprise AI Agent Ready Secure Data

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What is Fact0?

Fact0 is the audit layer built for AI agents, not generic SaaS. It logs tool boundaries, data egress paths, and human-in-the-loop approvals in a tamper-evident, SHA-256 chained ledger. Teams export PDF evidence packs and share read-only auditor links to pass enterprise security reviews.

How to use Fact0?

Install the Python SDK with pip install fact0-sdk, initialize a client with your API key, and call client.audit.log() to record actor, action, resource, and outcome. Add execution telemetry with client.telemetry.execution() to trace agent runs, spans, and tool calls.

Fact0 Core Features

Tool Boundary Logging

Track every tool execution, input parameters, and output results with origin attributes.

Tamper-Evident History

Each event links to the one before it via SHA-256 hashing so any alteration is mathematically detectable.

Signed Evidence Packs

Export PDF or JSON evidence packs stamped with Ed25519 digital signatures for third-party auditor verification.

Execution DAG & Replay

Visualize every step an agent took—tools, decisions, and branches—and rewind to debug failures.

Observability Hub

Monitor real-time LLM call metrics, tool execution stats, error rates, and conversation sessions from one dashboard.

Fact0 Spotlight

Ask natural-language questions about failed runs, PII access, chain integrity, or exports and jump to filtered audit logs.

Fact0 Use Cases

Prove loan and payment agent approvals for fintech regulators and internal audit

Track clinical and admin assistant access to patient data with actor identity and outcome

Show exactly what autonomous support bots changed, refunded, or escalated

Maintain audit trails for document deletes, shares, and AI-generated summaries in legal and HR workflows

Fact0 Frequently Asked Questions

How do I integrate Fact0 with my existing backend?

Install the Python SDK with pip install fact0-sdk, initialize a client with your API key, and call client.audit.log() to record events. Fact0 also supports OpenTelemetry, LangChain, LangGraph, FastAPI, and Next.js integrations.

How are the audit logs cryptographically provable?

Each event links to the previous one via SHA-256 hashing, forming an append-only chain. Evidence packs are signed with Ed25519 so auditors can verify integrity without database access.

Can I give my prospect's security team access without an account?

Yes. Export a PDF or JSON evidence pack, or share a read-only auditor link so prospects can verify chain integrity without needing your database.

We already use Datadog or CloudWatch. Why Fact0?

Fact0 is purpose-built for AI agent accountability—tool boundary validation, data egress logging, and human-in-the-loop approvals—not generic infrastructure monitoring.

Fact0 Product Background & Official Links

Fact0 Support Email & Customer service contact & Refund contact etc.

Fact0 Support Email: yash@fact0.io

More Contact, visit the about us page(https://docs.fact0.io/introduction)

Fact0 Individual Info

Fact0 Individual name: YASH JAYESHKUMAR CHAUHAN

Fact0 Developer Type: individual

More about Fact0, Please visit the about us page(https://docs.fact0.io/introduction)

Fact0 Pricing

Fact0 Pricing Link: https://fact0.io/pricing

Fact0 Pricing & Plans

Free

$0 /month

30,000 audit events / month
5 GB storage
30-day retention
1 team seat
5 evidence exports / month

Subscribe & upgrade now

Pro

Recurring

$79 /month

500,000 audit events / month
90-day retention
5 team seats included
Slack & PagerDuty alerts
Execution DAG replay & debug
99.9% Uptime SLA

Subscribe & upgrade now

Enterprise

contact

Contact sales

Custom audit event volume
Unlimited seats & evidence exports
SAML/SSO & SCIM provisioning
Self-host or private VPC deployment
Custom SLAs & support SLAs

Subscribe & upgrade now

Fact0 Tags

API Available Privacy-Focused For Developers For Enterprise AI Agent Ready Secure Data

Best Suited Occupations for Fact0

Software Developers Legal & Compliance IT Ops & Security

Fact0

Active

Tagline:Security reviews for AI agents

Updated:-

Social Media:

AI Agent AI Developer Tools AI Workflow API Available Privacy-Focused For Developers For Enterprise AI Agent Ready Secure Data

Open Website

Visit Website

What is Fact0?

How to use Fact0?

Fact0 Core Features

Tool Boundary Logging

Track every tool execution, input parameters, and output results with origin attributes.

Tamper-Evident History

Each event links to the one before it via SHA-256 hashing so any alteration is mathematically detectable.

Signed Evidence Packs

Export PDF or JSON evidence packs stamped with Ed25519 digital signatures for third-party auditor verification.

Execution DAG & Replay

Visualize every step an agent took—tools, decisions, and branches—and rewind to debug failures.

Observability Hub

Monitor real-time LLM call metrics, tool execution stats, error rates, and conversation sessions from one dashboard.

Fact0 Spotlight

Ask natural-language questions about failed runs, PII access, chain integrity, or exports and jump to filtered audit logs.

Fact0 Use Cases

Prove loan and payment agent approvals for fintech regulators and internal audit

Track clinical and admin assistant access to patient data with actor identity and outcome

Show exactly what autonomous support bots changed, refunded, or escalated

Maintain audit trails for document deletes, shares, and AI-generated summaries in legal and HR workflows

Fact0 Frequently Asked Questions

How do I integrate Fact0 with my existing backend?

How are the audit logs cryptographically provable?

Each event links to the previous one via SHA-256 hashing, forming an append-only chain. Evidence packs are signed with Ed25519 so auditors can verify integrity without database access.

Can I give my prospect's security team access without an account?

Yes. Export a PDF or JSON evidence pack, or share a read-only auditor link so prospects can verify chain integrity without needing your database.

We already use Datadog or CloudWatch. Why Fact0?

Fact0 is purpose-built for AI agent accountability—tool boundary validation, data egress logging, and human-in-the-loop approvals—not generic infrastructure monitoring.