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v0.3.0 — Phase 3 stable

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@sudzikcoin sudzikcoin released this 28 May 02:20
v0.3.0
e675f17

Phase 3 stable. Solana support across signer, PayAI adapter, MCP,
and a public x402 facilitator surface. Verified real on-chain on
both Noble grand-1 (Cosmos) and Solana devnet.

Added

  • @suverse-pay/signer-solana — SPL transferChecked payload
    signing for the exact scheme on Solana mainnet (solana:5eykt4...)
    and devnet (solana:EtWTRABZ...). Builds a v0 VersionedTransaction
    with the required instruction layout (ComputeBudget × 2, then
    transferChecked, then Memo for uniqueness), partial-signs as the
    payer, and emits the canonical v2 {paymentPayload, paymentRequirements} envelope. Round-trip ed25519 verification
    asserted by the signer test suite.
  • @suverse-pay/adapter-payai — PayAI facilitator adapter at
    https://facilitator.payai.network, registered alongside
    cosmos-pay and coinbase-cdp. Supports Solana mainnet
    (solana:5eykt4...) and devnet (solana:EtWTRABZ...) via the
    v2 schema (PayAI's wire format puts accepted and resource
    inside paymentPayload, distinct from the v1 envelope; the
    adapter handles the translation).
  • Coinbase CDP Solana support in the existing coinbase-cdp
    adapter — declarative addition only, the wire format is
    identical to the EVM path. (network, asset, scheme) = (solana:5eykt4..., USDC, exact) is the primary route on Solana
    mainnet with PayAI as failover.
  • Public x402 facilitator surface at /facilitator/* on
    apps/api:
    • GET /facilitator/health — liveness, no auth
    • GET /facilitator/supported — x402 spec §7.3 SupportedResponse
    • POST /facilitator/verify — x402 spec §7.1, no auth
    • POST /facilitator/settle — x402 spec §7.2, Bearer
      <resource-key> auth, rate-limited per key, idempotency-key
      derived from (payer, payload-hash, hourBucket). Routes across
      cosmos-pay, Coinbase CDP, and PayAI based on (network, scheme)
      with per-route failover.
  • MCP Solana support: init_session accepts a BIP-39 mnemonic
    and derives the Solana base58 address alongside the existing
    Cosmos bech32 and EVM 0x-hex addresses; pay_and_call selects
    the signer-solana for solana:* networks via the
    selectSigner(network) dispatch and fetches a fresh devnet /
    mainnet blockhash at sign time (the signer doesn't cache them —
    Solana drops them after ~150 slots).
  • scripts/smoke/mcp-solana/ — 5-step smoke that broadcasts a
    real SPL transferChecked on Solana devnet via PayAI. Includes a
    Node-only mock-x402-devnet resource server (no external deps —
    built on node:http) that emits 402 with v2 Solana
    PaymentRequirements and forwards PAYMENT-SIGNATURE to PayAI
    using the correct v2 envelope. Asserts a real devnet
    txSignature and idempotent replay.
  • scripts/smoke/facilitator-mocked/ — 10-step smoke for the
    public /facilitator/* surface against a mocked gateway. Covers
    supported / health / verify (Cosmos + EVM) / settle (Cosmos) /
    settle without auth / settle with bad auth / rate limit /
    idempotency.

Verified

  • Real Solana devnet settlement through MCP: agent → MCP →
    402 → MCP signs SPL transferChecked with CU limit 20_000 (the
    cap PayAI enforces; the previous default of 200_000 was rejected)
    → mock x402 forwards PAYMENT-SIGNATURE to PayAI /settle →
    PayAI co-signs and broadcasts to Solana devnet → real
    txSignature returned to the agent. Tx queryable on
    https://explorer.solana.com/tx/<sig>?cluster=devnet.
  • Real Cosmos settlement (regression — unchanged from v0.2.0):
    MsgExec(MsgSend) on Noble grand-1 still passes the mcp-real
    suite end-to-end.
  • Idempotent replay on Solana: a second pay_and_call with the
    same (payer, network, url, body, hourBucket) returns
    idempotentReplay: true with the same paymentId and
    txSignature — no second on-chain transaction.
  • All 6 smoke suites green: mocked (10), real (9),
    mcp-mocked (7), mcp-real (4), facilitator-mocked (10),
    mcp-solana (5).

Deferred

  • Coinbase CDP real-network smoke remains gated on a CDP API
    key. Static config + adapter unit tests cover the wire format;
    real settle awaits credentials.
  • PayAI mainnet smoke — devnet is the only on-chain smoke that
    runs by default. Mainnet costs real money and is captured as
    IDEAS.md entry 8 for future scheduled runs.
  • Self-serve resource-key issuance for the public
    /facilitator/* surface — keys are admin-bootstrapped today
    (IDEAS.md entries 9, 10).
Assets 2
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