Pricing

Pay per call. Priced in USD₮0.

Two paid tools, settled per call on X Layer. Everything else — writes, portraits, attestation checks, reputation lookups — is free.

x402 exact scheme · settled on X Layer

Memory Recall

0.0005USD₮0 / call

Semantic top-K recall over your identity-keyed memory store.

Session Context

0.0002USD₮0 / call

Bootstrap a new agent session from your most recent memories.

Everything else, free

The other 31 MCP tools — writes, portraits, attestation checks, reputation lookups, vertical copilots — carry no per-call charge.

  • Memory Write
  • Memory Bulk Write
  • Memory List / Get
  • Portrait & Seal generation
  • Attestation verification
  • Identity & reputation lookup
  • Vertical copilots (finance, lifestyle, daily brief)

x402 mechanics

Challenge. Sign once. Settle.

No API keys, no invoices, no separate billing account — every paid call is its own micro-transaction.

01

Challenge

Call a paid endpoint without payment and get a 402 back, with a signed offer: scheme, network, asset, amount, and where to pay.

02

Sign once

Your wallet signs an EIP-3009 transferWithAuthorization for that exact amount in USD₮0 — no on-chain transaction from you, no gas.

03

Settle

Retry the call with the signature attached. AMBER redeems it on X Layer and returns 200 with a settlement receipt.

Chain facts

Live from the chain.