P402.io
PaidMake AI spend accountable.
AI AgentsPaid
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About P402.io
Key Features
- Smart Routing: Selects the best facilitator based on health, cost, and policy, with failover capability.
- Spend Controls: Enforces per-buyer budgets, rate limits (RPM), route caps, and denial rules.
- x402 Payment Settlement: Route, verify, and settle USDC/USDT payments on the Base blockchain with a 1% flat fee.
- Observability & Tracing: Provides a DecisionTrace timeline for every payment attempt, tracking conversion and failure causes.
- Bazaar Overlays: Exposes machine-readable metadata tied to runtime health for endpoint discovery.
Use Cases
- Monetizing Pay-per-call APIs by metering every request without relying on subscriptions.
- Implementing MCP (Multi-Chain Protocol) servers to charge per tool invocation.
- Enabling agent-to-agent commerce where policies gate spend and domains.
- Creating Self-Healing Data Pipelines where agents automatically pay for premium access upon hitting rate limits (429).
- Internal chargeback systems for paid edges between services across internal teams.
FAQ
Do different facilitators exist in the x402 ecosystem? P402 Router | x402 Payment Infrastructure
Key Features
Smart Routing: Selects the best facilitator based on health, cost, and policy, with failover capability.
Spend Controls: Enforces per-buyer budgets, rate limits (RPM), route caps, and denial rules.
x402 Payment Settlement: Route, verify, and settle USDC/USDT payments on the Base blockchain with a 1% flat fee.
Observability & Tracing: Provides a DecisionTrace timeline for every payment attempt, tracking conversion and failure causes.
Bazaar Overlays: Exposes machine-readable metadata tied to runtime health for endpoint discovery.
Pros & Cons
Pros
- Private by default with metadata-only metering and five privacy modes.
- Live routing can reduce costs significantly (example shows 97% savings).
- Gasless USDC settlements on mainnet with fast 2-second finality.
- Transparent pricing with a free sandbox tier (25k events/mo).
- Open-source SDK and protocol, multiple integration options (VS Code, MCP, REST API).
- Detailed audit trails, decision traces, and evidence bundles for compliance.
- Supports cost attribution, margin reporting, waste detection, and cache savings.
Cons
- Free tier limited to 25,000 events per month with 14-day retention.
- Enterprise plans require annual commitment and minimum $60,000 ARR.
- Settlement add-on has $500/month minimum, adding cost for smaller users.
- Relatively new platform with limited community and third-party resources.
- Overage costs can add up at scale ($0.25/1k events on Build, $0.15/1k on Growth).
Best For
Monetizing Pay-per-call APIs by metering every request without relying on subscriptions.Implementing MCP (Multi-Chain Protocol) servers to charge per tool invocation.Enabling agent-to-agent commerce where policies gate spend and domains.Creating Self-Healing Data Pipelines where agents automatically pay for premium access upon hitting rate limits (429).Internal chargeback systems for paid edges between services across internal teams.
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