RelAI

RelAI Facilitator#

Gas-sponsored x402 v2 payments across Ethereum, SKALE Base, Avalanche, Base, Polygon, and Solana. One API, multiple chains, zero gas fees for users.

Get StartedDocumentation
https://facilitator.x402.fi
6
Networks
$0
Gas Fees
100%
x402 v2
<2s
Settlement

Why Choose RelAI Facilitator#

Gas Sponsoring

RelAI pays all gas fees. Users only sign permits off-chain - completely free for end users.

Multi-Chain Support

Support for SKALE Base, Avalanche, Base, and Solana. One API for all networks.

x402 v2 Compliant

100% compliant with Coinbase x402 v2 specification. Standard endpoints and payload formats.

Supported Networks#

RelAI Facilitator supports multiple blockchain networks with different token standards and settlement methods.

NetworkTokenStandardMethodGas TokenStatus
SKALE Base
USDC
EIP-3009
transferWithAuthorization
CREDIT
Live
Avalanche
USDC
EIP-3009
transferWithAuthorization
AVAX
Live
Base
USDC
EIP-3009
transferWithAuthorization
ETH
Live
Ethereum
USDC
EIP-3009
transferWithAuthorization
ETH
Live
Polygon
USDC
EIP-3009
transferWithAuthorization
POL
Live
Solana
USDC
SPL Token
TransferChecked
SOL
Live

Network Activity#

Successful settles (24h)

0
Active chains0
Last update—

Volume (24h)

$0.00
USDC volume settled via RelAI

Active chains

Live feed

Auto-refresh every 30s
Last refresh: —

Activity Trends

Every hour across the last 1 day.

Volume trend
$0.00
Total USD settled across 1 day
———
$0$0$0$0
Time (UTC)
0 settlesin the selected window

Settlement cadence

0 Successful settles across the selected window

———

Live Settlements#

Streaming directly from RelAI. Updates arrive instantly without waiting for external explorers to sync.

Last refresh
—
Live feed
CONFIRMED

API Endpoints#

Standard x402 v2 facilitator endpoints. All endpoints are available at https://facilitator.x402.fi

GET/supported

List supported payment schemes and networks

GET/discovery/resources

Bazaar discovery endpoint (catalog of discovered resources)

POST/verify

Verify payment without executing on-chain

POST/settle

Execute payment settlement on blockchain

GET/activity

Public activity metrics (settles + volume) aggregated from settle events

GET/live-settlements

Most recent successful settlement events (public)

GET/leaderboard

Top payer wallets ranked by successful settles (public)

Example: GET /supported Response

{
  "kinds": [
    { "x402Version": 2, "scheme": "exact", "network": "eip155:1", "extra": { "feePayer": "0x1892f72...", "decimals": 6 } },
    { "x402Version": 2, "scheme": "exact", "network": "eip155:137", "extra": { "feePayer": "0x1892f72...", "decimals": 6 } },
    { "x402Version": 2, "scheme": "exact", "network": "eip155:8453", "extra": { "feePayer": "0x1892f72...", "decimals": 6 } },
    { "x402Version": 2, "scheme": "exact", "network": "eip155:1187947933", "extra": { "feePayer": "0x1892f72...", "decimals": 6 } },
    { "x402Version": 2, "scheme": "exact", "network": "eip155:43114", "extra": { "feePayer": "0x1892f72...", "decimals": 6 } },
    { "x402Version": 2, "scheme": "exact", "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp", "extra": { "feePayer": "4x4Zhcqi...", "decimals": 6 } }
  ],
  "extensions": [],
  "signers": {
    "eip155:*": ["0x1892f72fdB3A966b2AD8595aA5f7741Ef72d6085"],
    "solana:*": ["4x4ZhcqiT1FnirM8Ne97iVupkN4NcQgc2YYbE2jDZbZn"]
  }
}

Ready to Get Started?#

Start accepting payments on multiple chains with zero gas fees for your users. Integrate RelAI Facilitator in minutes.

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