instructional-decision-engine-x402.vercel.app
https://instructional-decision-engine-x402.vercel.app/Read one or two permitted public HTTPS pages or text-layer PDFs in one paid request. Return clean bounded text, original URLs, retrieval times, content hashes and reading limits. No model call or provider key required from the buyer. Respect robots and access restrictions; any failed requested read prevents settlement. No browser rendering, OCR or login.
Paid verification
How it worksNo sponsored paid call yet.
Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.
Quality grade
How grading works- ✗ Answers a real HTTP 402 challenge
- ✓ Publishes a /.well-known/x402 descriptor
- ✓ Payment address on record
- ✓ Settlement network declared
- ✓ Price declared
x402 readiness
Readiness is how fully this listing follows its protocol and how it behaved in our probes over 30 days. It is shown for reference and does not move it in search. Search order and leaderboards use the separate quality grade (here B, 62.7/100), which weighs availability, payability and on-chain demand. How the two differ
| Valid payment requirements | 10/10 | Payment requirements carry a payee, a mainnet network and a price. |
| Live 402 challenge | 5/25 | Endpoint answers, but we have not seen a 402 challenge (189 ms). |
| x402 version | n/a | x402 version not observed yet. |
| Signed descriptor | n/a | No x402 standard defines a signed descriptor. |
| Uptime (30 days) | 15/15 | 13/13 probes succeeded over 30 days (100%). |
| Resource declaration | 10/10 | Declares 50 paid resource(s). |
| Verified identity | 5/10 | Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control. |
| Freshness + modern flags | 5/5 | seen in a source within 7 days; declares x402. |
| Security declaration | n/a | Payment is the access control for an x402 resource. |
Compared with peers
Against 10,060 reachable x402 APIs in our daily snapshot (2026-11-12 01:39 UTC). Display only; it does not change search order.
- Readiness
- Higher than 25% of peers
- This listing 67 · peer median 78
- Latency
- Faster than 54% of peers
- This listing 189 ms · peer median 205 ms
Where it loses the most points, and how to win them back
- Live 402 challenge −20
— Answer the paid path with a valid 402 challenge.
Now: Endpoint answers, but we have not seen a 402 challenge (189 ms).
- Verified identity −5
— Claim the listing and prove control of its domain.
Now: Publisher descriptor (/.well-known/x402 or OpenAPI) on record; claim this listing to verify domain control.
Paid endpoints
50 resource(s) advertised by this origin. Each price below is that resource's own x402 price; the headline price is the range across them.
https://instructional-decision-engine-x402.vercel.app/agent/research
https://instructional-decision-engine-x402.vercel.app/agent/read
https://instructional-decision-engine-x402.vercel.app/ai/election-evidence
https://instructional-decision-engine-x402.vercel.app/ai/sec-filing-brief
https://instructional-decision-engine-x402.vercel.app/ai/package-advisories
https://instructional-decision-engine-x402.vercel.app/ai/document-compare
https://instructional-decision-engine-x402.vercel.app/ai/document-evidence
https://instructional-decision-engine-x402.vercel.app/elections/results
https://instructional-decision-engine-x402.vercel.app/archive/bibliography
https://instructional-decision-engine-x402.vercel.app/archive/compare
https://instructional-decision-engine-x402.vercel.app/archive/references
https://instructional-decision-engine-x402.vercel.app/marketplace/demand
How to call
curl -sS -i -X GET https://instructional-decision-engine-x402.vercel.app/ # expect HTTP 402 Payment Required (about $0.002/call)Listed in
Directories this entry was found in.