Pricing Pipeline Changelog: v2 archive

Impact notes

• Jupiter fallback now relies on V3 liquidity gates and peg-aware validation instead of treating optional `createdAt` metadata as a hard freshness cutoff
• Tracked Solana assets can recover through Jupiter even when V3 responses include old createdAt values alongside current block-level pricing
• DexScreener fallback now prefers exact chain+address pool lookups when an asset has a resolvable token address, reducing dependence on noisy symbol search results
• DexScreener search remains as the last fallback path, still capped by the shared request budget and liquidity sanity gates

Impact notes

• Frankfurter remains the preferred ECB-backed business-day source for the core fiat set
• The existing `fawazahmed0/currency-api` mirrors still serve CNH/RUB/UAH/ARS and can backstop the wider fiat set when Frankfurter is unavailable
• When both current FX paths fail, ExchangeRate-API can now publish a daily full-set fiat snapshot instead of forcing an immediate cached-fallback run
• The About page and pricing methodology now disclose ExchangeRate-API as an externally visible FX reference source

Impact notes

• CNH/RUB/UAH/ARS still use the secondary daily feed as their normal source path
• When Frankfurter fails, the fresher `fawazahmed0/currency-api` mirror can now populate the broader fiat FX set instead of forcing an immediate cached-fallback run
• Per-peg FX metadata preserves calendar-daily cadence and source-date semantics during this live fallback path
• Public health no longer needs to report long consecutive cached-fallback FX runs for a Frankfurter-only outage when the secondary feed is healthy

Impact notes

• Pool challenge no longer depends on dex_liquidity.top_pools_json, so display truncation cannot hide a large challenger pool
• Published challenger snapshots are coverage-gated per stablecoin and fall back safely during migration gaps
• Cached FX fallback runs preserve per-peg source timestamps and source modes instead of refreshing them implicitly
• Health and status now report usable FX freshness, underlying source freshness, and consecutive fallback runs separately
• Non-USD and commodity validation consumers now read shared FX state instead of inferring freshness from cache updated_at alone

Impact notes

• Kraken joins primary consensus at weight 2 for supported USD pairs
• Bitstamp joins primary consensus at weight 1 as a lower-weight corroborating CEX venue
• Primary CEX fetches remain grouped so the quarter-hour pricing lane does not add new peak connection fan-out
• Missing Solana prices can now resolve through Jupiter before DexScreener, gated by liquidity and peg-aware plausibility checks
• Curated Chainlink EUR/USD, GBP/USD, JPY/USD, XAU/USD, and XAG/USD feeds can now refresh the FX/reference cache when fresh and aligned
• Status source distribution now reports Kraken, Bitstamp, and Jupiter participation explicitly

Impact notes

• Transitive source chains can no longer create fake multi-source high confidence
• Equal-size cluster ties now resolve deterministically by weight, spread, peg proximity, then label
• Fixed-peg assets no longer silently fall back into NAV-style 500 bps clustering when peg references are missing
• Stale or aggregate-only RedStone entries are excluded before consensus
• Protocol-backed redemption prices can no longer be overwritten by the GeckoTerminal probe
• Direct-API pools must pass shared TVL sanity gates before they suppress overlapping DeFiLlama pools

Impact notes

• Fluid, Balancer, Raydium, and Orca now contribute at most one promoted consensus source each
• Repeated high-TVL pools from the same protocol can no longer overweight primary consensus by appearing multiple times
• dex_prices.price_sources_json now stores per-protocol aggregates for the pricing bridge
• Pool challenge no longer depends on dex_prices.price_sources_json; it reads current top pools from dex_liquidity instead
• Non-USD tracked stablecoin pairs use peg-reference-aware conversion when deriving direct-API DEX prices

Impact notes

• Pool-level individual prices added as fourth depeg confirmation source, fixing dUSD-like depegs going undetected
• Pool challenge threshold now peg-type-aware: 300 bps for non-USD (was 500 bps for all)
• Pyth feeds with >200 bps confidence excluded from consensus; 100-200 bps downweighted
• RedStone excluded when internal venue agreement < 50%
• CG+DL-only consensus downgraded from high to single-source (illusory agreement)
• NAV tokens (FPI) now visible in peg-summary API with null deviation
• Full source list preserved in consensus label (no more truncation)
• Protocol override divergence warnings logged when >100 bps from consensus

Impact notes

• Dropped DL coins API from primary consensus: it returned CG-sourced data, making CG+DL agreement tautological
• Added DefiLlama stablecoins list price (weight 1) as a genuinely independent aggregator voice
• Added GeckoTerminal pool probe (weight 1) for single-source CG-only assets with $10K TVL gate
• Pool challenge guard: downgrades soft-only high confidence to 'low' when any $100K+ TVL DEX pool diverges ≥500 bps
• Pool challenge price correction: replaces soft consensus price with TVL-weighted mean of all qualifying individual pool prices
• DEWS scoring suppresses degradation bonus for high→single-source transitions to prevent alert spikes
• ~130 assets retain genuine high confidence via CG+DL-list agreement; ~27 gain GT cross-check

Impact notes

• 8 independent price sources with per-source circuit breakers and configurable weights
• Consensus algorithm clusters sources within 50 bps, picks highest-weight in largest cluster
• Authoritative protocol-redemption overrides for wrapper assets (cUSD, iUSD, crvUSD)
• 4-pass enrichment pipeline for assets still missing prices after primary consensus
• Price confidence tagging: high (2+ agree), single-source, low (disagree), fallback
• CoinMarketCap enrichment optimized from per-slug to batch listings endpoint