Web3 Provider Watch — 2026-09-26

Claimable

Nansen offers 2× API credits through Sep 27; its help page lists 1,000 free credits via Points Hub. The campaign requires 1,000 API calls for entry, while the help page says 100+; confirm the threshold with Nansen and submit by 23:59 UTC Sep 27. Coinbase CDP Paymaster advertises up to $15,000 in Base gas credits and up to $600 in signup credits; apply for additional credits through CDP Discord. Eligibility and offer combination are unspecified. OnFinality offers 35% off the first month of Growth or Accelerate. NOWNodes says a first dedicated node is included with Business; confirm eligibility.

New services and betas

GetBlock Solana Shred Streams is live: raw shreds over direct UDP with Frankfurt ingest, a 24-hour test for $20, and subscriptions from $300/month. No other dated launch surfaced in the selected official checks.

Act by date

Sep 27: Nansen’s offer and buildathon close at 23:59 UTC. Sep 28–29: QuickNode schedules Tron/Nile and Base/XRPL maintenance. Sep 29–Oct 4: Solana Agave 4.3 changes transaction encoding and reward-query behavior while endpoints remain available. Sep 30: Alchemy deprecates Transaction Simulation APIs and a small set of legacy NFT V2/V3 methods; isAirdrop and getNFTSales have no direct replacement listed. QuickNode schedules MegaETH and Mantle maintenance. Sui’s archival JSON-RPC fallback ends around month-end, with no exact day published. Oct 1–2: QuickNode schedules Stacks, XRPL EVM, Sepolia, 0g, Hoodi and Zcash upgrades. Solana gRPC port 10000 ends Oct 1; migrate to port 443 with x-token and review the new 15-credit-per-0.1-MB metering. QuickNode lists Zcash 6.4.0 through Oct 2 and a separate 6.4.2 security window Oct 1 without clarifying overlap. Arbitrum Open House registration closes Oct 2 at 17:01; submissions close Oct 4 at 15:59. The listing gives no timezone.

Changes

Allium’s official product and signup pages list 20,000 free Developer API credits and 100 Explorer Units; credits do not expire, and paid plans start at $200/month. Request access with work email and organization details; no launch date is stated. Polkachu’s public RPC page renders 57 endpoint links but publishes no total, so the unsupported stored count of 71 was removed. Sourcify’s 4byte page points callers to api.4byte.sourcify.dev; current counts did not render, and the latest readable stats are from July 5. Space and Time’s official post sets $1 per STU; current pricing/docs pages were inaccessible, so no monthly cap or subscription price is treated as current.

Gaps

BlockPI still labels Cosmos HTTP, WebSocket and LCD endpoints Partial Outage. Chainstack still shows the Solana Frankfurt upgrade In Progress after Sep 22–23; completion and impact are unclear. ShroomDK’s current availability and successor terms remain unresolved; Solana Explorer MCP was unreadable, SolanaFM does not specify whether keys are required, and Space and Time’s current pricing pages were inaccessible. Nansen’s call threshold, QuickNode’s Zcash versions, Sui’s exact cutoff and Arbitrum’s timezone remain uncertain. This bounded run checked 30 oldest provider rows plus deadline-linked pages; no historical daily runs were fabricated.