| Resource | Type | Project | Package / CLI | Links |
|---|---|---|---|---|
| OTL (Open Transaction Layer) Fireblocks' open coordination layer for compliant onchain transactions — policy, screening, and settlement metadata travel with the transaction. | API | — | — | |
| Solana Developer Platform Enterprise platform from Solana Foundation for wallets, token issuance, payments, and compliance — hosted API plus dashboard. | API | — | — |
| Arcium Explorer Network explorer and API for Arcium's confidential-computing network on Solana — browse computations, clusters, Arx nodes, and MXEs. | API | — | — |
| Blockworks / Messari API Primary Blockworks-marketed crypto data API (Messari stack post-acquisition). REST + WebSocket: assets, markets, exchanges, networks (incl. Solana), protocols, stablecoins, unlocks, fundraising, news, signals, AI. Auth: x-messari-api-key. Host: api.messari.io. | API | — | — |
| Blockworks Research Data API Secondary API: curated metrics and chart datasets from the Blockworks Research warehouse (~305 projects). Base api.blockworks.com/v1 with x-api-key. Useful for REV and Research dashboard exports; not the primary product API (that is docs.messari.io). | API | — | — |
| Crossmint API REST API for NFT minting, wallets, and payments infrastructure | API | Crossmint | — |
| Helius API REST API for Solana RPC, DAS, enhanced transactions, and webhooks | API | Helius | — |
| Jupiter API Swap and quote API for Jupiter DEX aggregator | API | Jupiter | — |
| Milypay API Australian data over x402 on Solana: api.milypay.xyz. Free try on milypay.xyz/api. Namespace milysec/* on pay.sh. agents.md + /.well-known/x402. | API | — | npx pay.sh call milysec/au-business/abn <abn> |
| MoonPay API API for fiat on-ramp and crypto purchases | API | MoonPay | — |
| Orca API REST API for Orca pool data, prices, and routing on Solana. | API | — | — |
| Superstate Fund Data API Public endpoints for USTB (fund 1) and USCC (fund 2): daily NAV, yield, and holdings. Base api.superstate.com; OpenAPI at /swagger-ui/. | API | — | — |
| Top Ledger API Decoded Solana protocol data — DEX, lending, perps, LP, staking, yield, governance, and wallet holdings — via REST, an MCP server (SSE), and a keyless x402 pay-per-call endpoint at $0.0004/call. Tiers from free (50 req/min) to Business. | API | — | — |
