# Agent Capital

> Neutral, source-backed reference and free browser tools for how autonomous AI agents hold, move, limit, budget, and account for money.

Primary URL: https://agentcapital.io/
Updated: 2026-07-06
Audience: builders, risk owners, finance operators, product teams, and researchers studying agent wallets, spend controls, agentic payments, and agent treasury.

## Core pages

- https://agentcapital.io/ - landscape map and verdict
- https://agentcapital.io/tools - free client-side agent finance tools
- https://agentcapital.io/tools/agent-budget-calculator - estimate per-task, daily, and monthly agent budgets
- https://agentcapital.io/tools/spend-policy-generator - generate JSON/YAML agent spend-policy drafts
- https://agentcapital.io/tools/x402-fee-estimator - estimate x402 micropayment spend from dated assumptions
- https://agentcapital.io/agent-budgeting - practical guide to setting AI agent budgets
- https://agentcapital.io/agent-wallets - custodial and non-custodial wallet patterns
- https://agentcapital.io/spend-controls - budgets, limits, approvals, and policy controls
- https://agentcapital.io/agent-to-agent-payments - x402, AP2, ACP, and machine-payment rails
- https://agentcapital.io/treasury-and-accounting - reconciliation, auditability, and reporting
- https://agentcapital.io/risks-and-open-problems - fraud, custody, prompt injection, and unresolved gaps
- https://agentcapital.io/glossary - terms
- https://agentcapital.io/sources - annotated bibliography
- https://agentcapital.io/faq - concise answers to common questions

## Editorial boundaries

This site is an independent educational publication. It is not financial, legal, tax, accounting, custody, or investment advice. It does not recommend tokens, products, custodians, or payment providers. All tools run client-side in the browser and are planning aids only.

It cross-links x402 implementation depth to https://x402docs.com, broader agent-economy coverage to https://agenteconomy.io, and compute-market topics to https://computemarket.io.

Full machine-readable summary: https://agentcapital.io/llms-full.txt