Policy + tax-safe guardrails
Define budgets, approvals, vendor limits, and tax-safe rules in a readable policy layer.
Launch trusted spending AI agents with full control.
Deploy AI agents that book travel, manage vendors, and execute purchases with real-time control of budgets, approvals, and audit-ready records.
Transactions
approved
Delta Airlines
TravelAgent
$1,980
approved
AWS
CloudProvisioner
$2,750
pending
Figma
SaaSBuyer
$420
Policies Applied
Budget check
passed
Vendor allowlist
passed
Approval threshold
passed
Audit Records
Transaction approved
TravelAgent
Policy evaluated
CloudProvisioner
Audit trail created
SaaSBuyer
Let agents buy, without losing finance trust.
Custos lets teams deploy spending agents without giving up control of cash, approvals, or compliance. Agents do the buying, humans keep the guardrails. Every action is traced, categorized, and report-ready.
clear ownership
defined budgets
approval rules
audit-ready logs
Deployed Spending Agents
| Agent | Function | Business Unit | Owner | Status | Spend Mode | Budget Used | Risk |
|---|---|---|---|---|---|---|---|
| TravelAgent | Flights & Hotels | Operations | Marcus Johnson | Deployed | Auto | $4,250 / $15,000 | Low |
| OfficeSupplyRunner | Office Supplies | Operations | Marcus Johnson | Deployed | Auto | $320 / $1,500 | Low |
| SaaSBuyer | Tools & Subscriptions | Marketing | Sarah Chen | Deployed | Approval Only | $1,850 / $3,000 | Medium |
| CloudProvisioner | Infrastructure | Engineering | Alex Kim | Deployed | Auto | $38,500 / $50,000 | Medium |
| VendorPayBot | Rent & Services | Finance | Emily Rodriguez | Paused | Approval Only | $12,800 / $25,000 | Low |
The fintech control layer for AI transactions
Custos is the control plane for AI agents that initiate, request, or execute company spend. You define the rules. Agents operate within them.
Unified spend visibility
Track autonomous and approval-only spend by team, vendor, and GL category.
Adaptive controls
Tune risk thresholds and approval flows per agent as trust grows.
How Custos Works
A step-by-step system to launch, control, and scale spend-capable agents with finance confidence.
Create Agent Wallet
Register a new agent and create a virtual wallet for spend control.
TravelAgent
Marcus Johnson
Operations
Flights & Hotels
Virtual Wallet Details
Wallet ID
wallet_7x9k2m4p
Status
ActiveAccess Controls
- Virtual card provisioning enabled
- Real-time spend tracking active
- Policy enforcement enabled
Why this exists
Even with agents, teams still need to:
- • book flights and hotels
- • order office supplies
- • manage SaaS tools
- • collect receipts for taxes
- • follow up on approvals
Agents can execute spend, but finance needs guardrails, approvals, and tax-ready records.
Without Custos
- • agents share credentials
- • spending rules live in prompts
- • ownership is unclear
- • tax documentation is incomplete
- • finance has no real-time visibility
Traditional finance tools were not built for autonomous buyers.
Six ways our platform simplifies spend for growing businesses.
Deploy agents that handle real spend while finance keeps approvals, visibility, and report-ready trails.
Travel & Offsites
Let agents book flights and hotels while staying within policy limits and collecting tax-ready receipts automatically.
Office & Supplies
Automate reorders of consumables with vendor limits, tax-exempt tracking, and automatic budget pauses.
SaaS & Tool Procurement
Discover, compare, and procure tools with invoice capture and renewal tracking built into every transaction.
Cloud & Infrastructure Spend
Control provisioning within project budgets, enforce limits, and route spikes for approval before spend happens.
Vendors, Rent, Services
Track recurring payments, flag anomalies in real time, and maintain complete audit logs for all vendor spend.
Policy Enforcement
Set vendor-level limits, enforce policies, and auto-flag out-of-policy spend before transactions are processed.
Example Agent Scenarios
Natural-language requests from teams, with controlled execution and audit trails by Custos.
Team Offsite Travel
TravelAgent · Approval Threshold Enabled
Request
Book round-trip flights for 12 teammates from SF to Seattle for the April offsite. Keep total spend under $9,000 and store tax-ready receipts.
Agent Action
Compliant options found on Delta and United for $8,420 total. Two seats exceed policy due to timing constraints.
Custos Enforcement
Outcome: 10 seats auto-approved. 2 seats routed to manager approval with receipts attached.
Emergency Supplier Reorder
OfficeSupplyRunner · Auto Mode
Request
Reorder monitors, adapters, and cables for next week. Max $2,500. Mark tax-exempt items.
Agent Action
Approved SKUs matched and split across Staples and Amazon Business. Total spend $2,140, within Operations budget.
Custos Enforcement
Outcome: Purchase auto-approved. Tax tags applied and spend attributed to Operations.
SaaS Trial Procurement
SaaSBuyer · New Vendor Check
Request
Procure 20 seats of an analytics tool for Marketing. Run a 30-day trial under $1,200 and capture invoices.
Agent Action
Three vendors match requirements. Best option priced at $980, but vendor is new.
Custos Enforcement
Outcome: Transaction paused. Routed for new-vendor approval with invoice capture enforced.