generated: '2026-08-11'
method: searched
source: https://underscoredone.com/llms.txt + https://underscoredone.com/asn_lookup/ + https://underscoredone.com/.well-known/x402.json
summary: >-
  _done has exactly one commercial plan and it applies to every one of the 26 services: pay
  $0.01 per successful request in USDC over x402. There are no tiers, no accounts, no
  subscription, no free tier and no enterprise plan. The price is published in three
  machine-readable places (each spec's info.x-pricing and x-402 blocks, each operation's
  x-payment-info, and the /.well-known/x402.json manifest) as well as on every service page.
pricing_page: null
pricing_page_note: >-
  https://underscoredone.com/pricing returns 404. Price is stated inline on each of the 26
  service pages and in llms.txt instead of on a dedicated pricing page.
plan_count: 1
model: pay-per-call
free_tier: false
trial: false
plans:
  - name: Pay-per-call
    id: x402-per-request
    price: 0.01
    currency: USD
    settlement_currency: USDC
    billing_period: per-request
    included_quota: 0
    overage: 'n/a — every request is individually priced and individually settled'
    limits: none published
    signup_required: false
    account_required: false
    applies_to: all 26 services / 27 operations
    payment:
      protocol: x402
      version: 2
      amount_base_units: '10000'
      decimals: 6
      facilitator: https://api.cdp.coinbase.com/platform/v2/x402
      max_timeout_seconds: 300
      rails:
        - network: 'eip155:8453'
          chain: Base Mainnet
          asset: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
          asset_name: USD Coin
          pay_to: '0xE9740820225B3918b4ddd1292C7cA4Ca0e2C2F08'
        - network: 'solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp'
          chain: Solana Mainnet
          asset: EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
          pay_to: 8ugAWAXDB8V18kiUrGZTq1oMvU3C6Fxs8hfC6rvzQT3b
    evidence:
      - url: https://underscoredone.com/llms.txt
        status: 200
      - url: https://underscoredone.com/.well-known/x402.json
        status: 200
      - url: https://asn-lookup.underscoredone.com/openapi.json
        status: 200
      - url: https://asn-lookup.underscoredone.com/lookup
        status: 402
        note: Live unpaid POST returned the 402 challenge quoting amount 10000 on both rails.
notes:
  - Price is uniform — all 26 resources in /.well-known/x402.json quote "$0.01" / amount "10000".
  - >-
    No refund, credit or failure policy is published. A caller who pays and receives an error has
    no documented recourse, and there is no idempotency key to prove a retry is the same request.
  - No volume discount, committed-use or enterprise contract is offered or mentioned.
cross_links:
  rate_limits: rate-limits/done-rate-limits.yml
  conventions: conventions/done-conventions.yml