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PayAI

PayAI

live
Universal facilitator supporting all EVM + Solana networks

4.5 (67 reviews)

Universal x402 facilitator supporting all major EVM and non-EVM networks including Solana, with AI-optimized payment flows.

Visit WebsiteDocumentationGitHub
universal
solana
ai-optimized
cross-chain
all-networks
Key Metrics
0.2%
Fee
3 seconds
Settlement
5+
Networks
$0.001
Min Payment

Launched

9/5/2025

Uptime

99.92%

Monthly Volume

$5.7M

Quick Facts & Features

Quick Facts

Fee Structure

0.2%

Settlement Time

3 seconds

Payment Range

$0.001 - $1,000,000

Authentication

API Key
AI Agent Key
+2

Integration Difficulty

easy

Est. Integration Time

12 minutes
Features & Capabilities
OFAC Compliance
KYT Screening
Instant Settlement
Testnet Support
SDK Available
Webhook Support
Batch Payments
Recurring Payments
Refund Support
Multi-Currency
Network Support
NetworkChain IDNative USDCEst. Gas CostStatus
Ethereum

1

Yes

$5-20

Supported
Base

8453

Yes

$0.0001

Supported
Solana

N/A

Yes

$0.0005

Supported
Polygon

137

Yes

$0.001

Supported
Arbitrum

42161

Yes

$0.10

Supported
Available SDKs
TypeScript
Official

@payai/x402-sdk

Version 3.0.2
Python
Official

payai-x402

Version 2.1.1
Rust
Official

payai-x402-rs

Version 1.2.0

Integration Guide

Universal x402 payments across all major blockchain networks

Estimated Time: 12 minutes
easy difficulty
1
Get API Key

Sign up and get universal network access

typescript
// Register at: https://payai.network/register
// Get universal API key with all network access
2
Install SDK
3
Initialize Client
4
AI-Optimized Payment
5
Handle Settlement
Last step
Additional Resources
Full DocumentationGitHub RepositoryGet Support

Compare with Others

See how PayAI compares to other x402 facilitators

Direct Comparisons
PayAI vs thirdweb
Advantages

Solana support

AI optimization

Universal coverage

Lower fees (0.2% vs 0.1-0.5%)

Disadvantages

Newer platform

3s settlement vs instant

Best for:
Solana integration
AI-optimized routing
Universal coverage
Not ideal for:
Gaming-specific features
Instant settlement needs
Other Facilitators to Consider
CDP Facilitator
CDP Facilitator
Official Coinbase facilitator with zero fees on Base

Fee:

0%

Networks:

2+

Settlement:

Instant

thirdweb
thirdweb
Multi-chain facilitator supporting 170+ networks

Fee:

Variable

Networks:

5+

Settlement:

Instant

Mogami
Mogami
Base-native facilitator for AI agent micropayments

Fee:

0%

Networks:

2+

Settlement:

Instant

Reviews & Community

What the community says about PayAI

4.5

Based on 67 reviews

Rating Distribution

5★

40

4★

17

3★

7

2★

2

1★

1
Recent Reviews
S
Solana Builder
10/28/2025

Finally, a facilitator that properly supports Solana! The AI routing is impressive.

C
Cross-chain Dev
10/26/2025

Great universal coverage. The AI optimization saved us significant gas costs.

Share Your Experience

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Review submission coming soon
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We're building essential tools that sit between AI agents and autonomous payments, ensuring agents never overspend while enabling instant API monetization.

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