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Add a free blockchain data source directory - #261
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ralyodio
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October 31, 2026 13:08
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Adds a Blockchain collection and its
/blockchainniche, with seven reviewed free data providers: Blockstream Esplora, Mempool.space, PublicNode, Kraken, Koios, XRPL public servers, and Solana public RPC.Each provider includes supported chains, capabilities, endpoints, official documentation, access limits, and the review date. The directory records shared-service limits and Solana's production restrictions; it does not relay transactions or claim unlimited access. Default feeds cover all providers, Bitcoin sources, and RPC services. Stable item IDs and content hashes keep unchanged catalog reads from generating updates.
Validation: 78 adapter/niche tests pass, Biome checks pass for the changed JavaScript files, and all seven catalog records normalize with stable hashes on repeated reads.