Stellar Weekly Roundup — week of May 15, 2026

Circle's Cross-Chain Transfer Protocol went live on Stellar on May 19, enabling native 1:1 USDC transfers across 23 blockchains without wrapped assets or custodial bridges. On-chain asset manager Spiko reported its Stellar-based AUM at approximately $600 million, up from $150 million at the start of 2026, pushing the firm's total on-chain AUM past $1.2 billion.

Cross-Chain Infrastructure

Circle's CCTP launch on Stellar connects the network to a 23-chain USDC corridor spanning Ethereum, Solana, Base, and Avalanche. The protocol burns USDC on the source chain and mints a canonical 1:1 equivalent on the destination, removing counterparty risk from wrapped tokens. Developers can embed cross-chain transfers directly into applications via Circle's developer documentation; a beta interface at crossmesh.xyz is already live for end users. A technical walkthrough by James Bachini demonstrates the burn-and-mint flow with working code against testnet.

RWA and Institutional Capital

Spiko's total on-chain AUM crossed $1.2 billion, with Stellar-based products growing fastest among its supported chains. Token Terminal reported the Stellar-specific figure at approximately $600 million, a fourfold increase since January 2026..

Security

Blockaid published a detailed post-mortem on the attempted $10 million oracle-manipulation against the Blend lending protocol. An attacker inflated USTRY's price 100x through low-liquidity Reflector oracle feeds, used the fraudulent collateral to borrow $61 million in XLM, then began bridging funds off-chain. Validators coordinated in real time to quarantine approximately 48 million XLM on-chain before further damage occurred. The incident demonstrated that thin-liquidity feeds remain a concrete exploit vector when lending protocols lack fallback price checks.

The Soroban Security Portal opened contributions to Navigator and SCF Project role holders this week, centralizing audit reports previously scattered across GitHub, Discord, and PDFs. CertiK published a write-up on two Soroban state storage vulnerabilities: storing long-term data in Temporary storage risks irreversible loss on TTL expiry, and relying on TTL alone for nonce validation enables signature replay attacks.

xBull launched Mixer, a privacy pool on Stellar using Poseidon2 hashes and Ultrahonk ZK proofs to break the link between deposit and withdrawal addresses, with Know-Your-Transaction monitoring built in.

Developer Infrastructure and ZK

The May 21 Stellar Developers Meeting featured April from Kolkata presenting Route 14, a ZK privacy toolkit for Soroban built on Stellar's native BLS 12-381 support under CAP-0059. The design centers on a shared verification registry callable by any Soroban contract, removing per-application deployment overhead.

The Stellar Community Fund's 43rd round launched its RFP track. A Twitter Space with category delegates from SDF, AHA Labs, and the community explained the format: specific ecosystem problems with defined success criteria, directed at advanced builders. Delegates alejoskyhitz, PamphileRoy, and 0ceans404 walked through the active categories.

Financial Inclusion

Mercy Corps Ventures, Fonkoze Foundation, and Bousol launched a cash transfer pilot in rural Haiti, disbursing $80,000 in USDC to 200 extremely vulnerable women via Stellar-powered Bousol wallets. The pilot tests whether digital cash outperforms physical cash and mobile money on safety, efficiency, and transparency in fragile-context aid delivery. SDF CEO Denelle Dixon, in a Stellar House Sessions interview, cited $65 billion in annual remittance volume as evidence that cross-border payments remain the network's strongest use case.

Lightning Round

• CCTP developer docs live: Circle's Stellar contracts reference is published for dApp builders.
• Boundless x TrustlessWork Hackathon concluded: winners announced across five judging categories. Full results.
• DefIndex x Beans deposit challenge: deposit 100 USDC, hold 14 days, receive 10 USDC with a referred friend. Details.
• Lumen Loop launched: lumenloop.com went live as a single destination for Stellar ecosystem content.
• Build on Stellar Hackathon, Istanbul: 36-hour Soroban hackathon at Hilton Bomonti during Istanbul Blockchain Week. Register.
• NY Tech Week Privacy afterparty: StellarOrg and Boundless co-hosting June 4 at Parcelle Chinatown, New York. RSVP.
• Hypertron builder spotlight: founders trace the journey from a Rise In hackathon in Bangalore to a compliance and payments automation platform. Video.

Upcoming Events

• May 22 Stellar Chile Community Call (Discord)
• May 22 Blockotá Summer Friday v20.0, Bogotá, Colombia
• May 22 Stellar Town Hall (Discord)
• May 25 Weekly Brazilian Ambassador Meeting (Discord)
• May 26 StarMaker Community Call
• May 27 Stellar APAC Community Call
• May 28 Stellar Developers Meeting (YouTube / Discord)
• May 28 E.Africa Weekly Community Call
• Jun 1 Stablecoins on Court | Padel with Range, Amsterdam
• Jun 2 Build On Stellar Hackathon, IBW 2026, Istanbul
• Jun 4 Stellar Party, Feriye Palace, Istanbul
• Jun 5 Privacy Please, NY Tech Week, New York

Ambassador Activity

Seven chapters were active this window. Starmaker LATAM ran three in-person events in Santa Cruz de la Sierra, Bolivia, covering AI and x402 micropayments, startup formation with dollar payouts, and Stellar mainnet project showcases. Stellar Chile's Instawards Sprint Week 2 recognized builders from ArcusX One and Sozu Capital. Stellar Indonesia and Stellar Turkey both ramped up activity ahead of regional hackathons. Stellar Brazil held its weekly ambassador meeting on May 18, and East Africa held its weekly community call on May 21.

What to Watch

• SCF 43 RFPs: first builder proposals will signal where advanced builders see the largest ecosystem gaps.
• Circle CCTP integrations: first production dApp integrations on Stellar after last week's launch.
• Build on Stellar Hackathon, Istanbul (Jun 2): 36-hour Soroban build at Hilton Bomonti during Istanbul Blockchain Week.
• Spiko AUM trajectory: at approximately $600 million on Stellar; the next threshold is $1 billion.

LL

Written byLumen Loop