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concordancehq.duckdns.org tools digest
https://concordancehq.duckdns.org/tools/digest
answers 402
One call, every category: pulls everything matching a topic across all aggregated sources and groups it by category (news, legal, academic, dev community, ...) with counts -- replaces manually calling /tools/search once per category and merging results yourself. Structured aggregation, not an AI-generated summary.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.03
- Network
- base
- Pay to
- 0x1f5f8474fA0dc1Fde79187abd68Ef8Ea15ADAe34
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 664 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-08-15T14:25:45.325Z (1h ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fconcordancehq.duckdns.org%2Ftools%2Fdigest"