Breaking down: "Summarize the basics of the HTTP protocol."

Identified 3 research target(s) to investigate; these are not established facts

Deep mode: up to 4 paid/cached reads plus one bounded gap-expansion pass when needed.

Discovered 21 verified source(s)

Recalled 12 past runs on this subject — how these sources performed when they were available.

ERC-8004 reputation loaded — composite scores on this subject.

Claim-aware portfolio selected 3/3 positive proposal(s): 3 cached + 0 fresh, predicting 3/3 claim(s) above the evidence floor with $0.000000/$0.050000 fetch USDC reserved.

Free-preview pre-check maps an actionable source to every sub-claim (3/3); paid reading may proceed within the budget.

Agent spend wallet ready: 0x29028Fe1122E17Fe7863A22701e863FE4DaE1aFB (balance sufficient)

Reused cached Agent Economy Weekly — x402 turns HTTP 402 into an agent payment rail (free) — S1

Reused cached Keryx Engineering (first-party) — Recovering a Keryx paid research job (free) — S2

Reused cached Ethereum Foundation Blog — The triage is the product: running AI agents against Ethereum's protocol code (free) — S3

Sub-claim "What is the HTTP protocol?": 10% covered by S1 — S1 mentions HTTP only in the context of the HTTP 402 'Payment Required' status code; it provides topical context (HTTP has status codes) but does not define or explain what the HTTP protocol is.

Sub-claim "What are the core components or basic concepts of HTTP?": 10% covered by S1 — S1 references one HTTP status code (402) and a request/response retry pattern, but does not enumerate or explain core HTTP concepts such as methods, headers, status code classes, URIs, or statelessness.

Sub-claim "How does HTTP function in client-server communication?": 20% covered by S1 — S1 shows a minimal client-server exchange (server responds 402 with payment requirements; client signs and retries), which illustrates request/response interaction, but does not explain HTTP's client-server model generally.

All three sub-claims about HTTP basics are essentially uncovered (0.1-0.2). However, none of the affordable skipped sources address the HTTP protocol itself: they cover stablecoin settlement, micropayments, idempotency keys, gardening, console repair, SaaS, crypto payments, ontologies, LLM tooling, agent memory, DeFi, exchange policy, crypto regulation, dollar/euro onchain gap, esoteric cosmology, a token-donor protocol, and x402 settlement latency. Buying any of them would not fill the HTTP-basics gap, so no purchase is recommended despite low coverage.

Final check — "What is the HTTP protocol?": 10% assessed by S1

Final check — "What are the core components or basic concepts of HTTP?": 10% assessed by S1

Final check — "How does HTTP function in client-server communication?": 20% assessed by S1

Final coverage assessment — None of the supplied passages explain what HTTP is, its core components, or how it functions in client-server communication. S1 mentions HTTP 402 and a server/client interaction but only in the narrow context of a payment rail, not as a general explanation of HTTP. S2 and S3 are unrelated to HTTP basics. The assessment does not establish a complete supported answer for every requested part.

Synthesizing a grounded answer from 3 source(s)…

Relevance review returned; only checked excerpts can retain support, and review cannot raise it.

Below reward gate — S1 supports claim 1 at 10%: “x402 revives the dormant HTTP 402 'Payment Required' status as a real payment rail.”

Below reward gate — S1 supports claim 2 at 10%: “A server responds 402 with machine-readable payment requirements; the client signs a payment authorization and retries.”

Below reward gate — S1 supports claim 3 at 10%: “Agents can therefore pay per request with no accounts or API keys, discovering and purchasing data autonomously at runtime.”

Rejected 0 invalid evidence span(s) and 3 unsupported citation marker(s); rejected markers cannot receive citation rewards.

No citation passed the evidence gate — the $0.050000 citation pool stays unspent; settled access tolls still stand.

Drafted answer citing 0 source(s)

Confidence: Low — no citation passed the evidence gate.

Done. Spent $0 across 0 confirmed/simulated payment(s) to creators.