The Payment Layer ForAutonomous Software
HTTPayer lets software pay software. Automated, usage-based payments over HTTP. No subscriptions. No invoices. No friction.
Built on open standards and trusted infrastructure
Software is becoming autonomous.
Payments haven't caught up.
APIs, AI agents, and services can now act on their own
But payments are still built for humans
Traditional payment infrastructure wasn't designed for autonomous systems
Subscriptions
Monthly billing cycles designed for human customers
Manual billing
Invoice generation and payment tracking require human intervention
Accounts and API keys
Authentication systems built around user accounts
Invoices and reconciliation
Complex accounting processes need manual oversight
Autonomous software needs autonomous payments
Monetization is the bottleneck
Modern applications face critical payment infrastructure challenges
Subscriptions don't scale to machine usage
Traditional subscription models weren't designed for AI-driven consumption patterns
Usage-based pricing is expensive to build and maintain
Complex metering infrastructure requires significant engineering resources
Global payments add friction and compliance risk
Managing international transactions and regulations creates barriers
AI agents can't subscribe or manage invoices
Autonomous systems need programmatic payment capabilities
This limits adoption and blocks new business models
HTTPayer automates payments at the protocol level
HTTPayer turns HTTP 402 into a fully automated payment flow.
Any request can become a paid request, without changing how software is built.
Developers keep using HTTP.
HTTPayer handles the money.
Pay-per-request pricing by default
True usage-based pricing without infrastructure complexity
Cross-chain USDC settlement
Instant global payments without currency conversion
Built-in budgets, caps, and policies
Granular spending controls for autonomous systems
Privacy-preserving by design
Secure transactions without compromising user data
How HTTPayer works
Request
App calls paid API
Price
HTTP 402 with cost
Payment
Auto USDC settle
Delivery
Data returned
No wallets. No user onboarding. No glue code.
Everything you need to manage agentic payments
The HTTPayer dashboard gives developers and teams full control. No wallets. No smart contracts.
Credits via Stripe
Top up instantly with a card. Credits convert to USDC and route to any x402 endpoint.
Multi API key management
Generate, rotate, and scope keys per project or environment. All from one place.
Billing per org
Separate credit pools, usage limits, and invoices for each team or organization.
Usage metrics
See spend per key, per endpoint, and per org. Understand exactly where credits go.
Watch the demo
See HTTPayer in action: credit top-up to live x402 calls
Production-ready infrastructure
HTTPayer is already running with:
A live payment relay
Production-ready relay processing payments
SDKs for fast integration
Developer tools for multiple languages
CLI and agent automation
Command-line tools for exploration
Public docs and examples
Complete guides and working code
A complete payment platform
The easiest way to add agentic payments
One MCP server. One agent skill. Any AI client. HTTPayer is installed and ready in under a minute.
Agent Skill
httpayer.com/skill.md
A machine-readable skill file any AI agent can load. Teaches the agent when and how to use HTTPayer: endpoints, workflow, and cost. No human involvement needed.
# Paste this into any AI agent to install HTTPayer:
# llms.txt discovery:
https://httpayer.com/llms.txtAuto-detects client
Claude Code, Cursor, Windsurf...
Agent-first design
Machine-readable, no UI needed
Get your API key from the dashboard, then run setup. That's it.
Get your API keyUse Cases
Built for real revenue impact
Designed for scale and compliance
Secure key isolation and encrypted execution
Spend limits and abuse protection by default
Verifiable payment callbacks
Audit-ready by design
The future of software is pay-per-use
If software can act on its own, it should be able to pay on its own.
HTTPayer makes that possible.
