Search blockchain entities on Solana via x402 micropayments.
What it does
BlockSearch is an AI-oriented block explorer that exposes an entity search endpoint at blocksearch.dev. The `/api/entity/search` endpoint accepts a GET request with a `query` parameter and returns matching blockchain entities that can be used in subsequent queries. The service is gated behind the x402 payment protocol on the Solana network, accepting USDC (token EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v) with a maximum cost of 10,000 base units (0.01 USDC) per request.
The endpoint is discoverable and uses the "exact" payment scheme. A fee payer address is provided for transaction relay. Beyond the entity search capability, the site brands itself as an "AI Block Explorer," suggesting additional blockchain data endpoints may exist or be planned, but no documentation or additional endpoints were found during crawling—the /docs, /api, /pricing, and /README paths all return 404.
Due to the lack of documentation, response schema, and examples, the exact shape of the returned data is unknown. Users should expect to experiment with the query parameter to understand result formats. The service is live and returns a valid x402 challenge, confirming it is operational.
Capabilities
Use cases
- —Looking up blockchain entities (addresses, tokens, programs) by name or identifier
- —Feeding entity identifiers into downstream blockchain data queries
- —Agent-driven blockchain research with micropayment access
- —Resolving human-readable names to on-chain addresses
Fit
Best for
- —AI agents needing programmatic blockchain entity resolution
- —Developers building Solana-aware applications that need entity discovery
- —Workflows requiring pay-per-query blockchain search without API keys
Not for
- —Users needing detailed transaction history or full block explorer functionality (not confirmed available)
- —Free-tier or high-volume bulk search (every request costs USDC)
- —Non-Solana blockchain entity searches (only Solana payment confirmed)
Quick start
curl -H "X-PAYMENT: <x402_payment_header>" \
"https://blocksearch.dev/api/entity/search?query=jupiter"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge with input schema, but there is no documentation, no response schema, no examples, and no pricing page. Nearly all details beyond the payment challenge must be inferred.
Warnings
- —Documentation pages (/docs, /api, /pricing, /README) all return 404.
- —No response schema is provided; the shape of returned data is unknown.
- —No OpenAPI spec or ai-plugin manifest found.
- —The site description is minimal ('AI Block Explorer') with no further context.
- —Exact entity types searchable (addresses, tokens, programs, etc.) are unconfirmed.
Citations
- —The endpoint accepts GET requests with a 'query' string parameter and is gated by x402 on Solana with USDC at max 10,000 base units.https://blocksearch.dev/api/entity/search
- —The site brands itself as 'AI Block Explorer'.https://blocksearch.dev
- —Documentation, API, pricing, and README pages all return 404.https://blocksearch.dev/docs