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api.craigmbrown.com services research.topic-deep-researcher
https://api.craigmbrown.com/v1/services/research.topic-deep-researcher
payable
Multi-source research report with academic-grade sourcing — every claim carries a resolvable citation, not a bare assertion. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Broader source pool than content.youtube-research (web + academic vs. video-only); the deep-dive tier above research.topic-news-scanner's fast scan.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.05
- Network
- base
- Pay to
- 0x5E709929A4AB69eC3a8811d03417869059BC4EB9
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 82 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-10T09:14:06.257Z (1d ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.craigmbrown.com%2Fv1%2Fservices%2Fresearch.topic-deep-researcher"