Discover / paulgraham.persona.energy

paulgraham.persona.energy

Q: Did our last probe detect a payment challenge?

No. At our last probe on 17 Oct, 08:59 UTC, we detected no payment challenge.

Q: What payment terms does paulgraham.persona.energy advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Q: Where is paulgraham.persona.energy listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

□ No challenge detected

Search Paul Graham's source corpus — a source-grounded persona of the Y Combinator co-founder and essayist, built from 13,000+ cited sources: his complete essays, talks, interviews, and X posts — by semantic + lexical query and retrieve grounded packets (graded claims, quotes, evidence with citations). POST a JSON body { query, limit? (<=100), packetTypes? }. Flat micro-price per query.

x402
Base
USDC

Listed price: $0.01
Challenge detected: 0 of the last 9 checks
Last checked: 17 Oct, 08:59 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://paulgraham.persona.energy/v1/x402/entities/paul-graham/retrieve
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.

1 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

POSThttps://paulgraham.persona.energy/v1/x402/entities/paul-graham/retrieve$0.01Search Paul Graham's source corpus — a source-grounded persona of the Y Combinator co-founder and essayist, built from 13,000+ cited sources: his complete essays, talks, interviews, and X posts — by semantic + lexical query and retrieve grounded packets (graded claims, quotes, evidence with citations). POST a JSON body { query, limit? (<=100), packetTypes? }. Flat micro-price per query.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 1 of 1 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/paulgraham.persona.energy

Recent checks

4 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
17 Oct, 08:59 UTC	No challenge detected	401	386ms
16 Oct, 04:38 UTC	No challenge detected	401	116ms
14 Oct, 19:26 UTC	No challenge detected	401	109ms
12 Oct, 22:31 UTC	No challenge detected	401	93ms
11 Oct, 00:15 UTC	No challenge detected	401	258ms
9 Oct, 15:32 UTC	No challenge detected	401	136ms
8 Oct, 09:33 UTC	No challenge detected	401	124ms
7 Oct, 03:32 UTC	No challenge detected	401	114ms
4 Oct, 05:04 UTC	No challenge detected	401	98ms

Questions

Did our last probe detect a payment challenge?

No. At our last probe on 17 Oct, 08:59 UTC, we detected no payment challenge.

What price is recorded for paulgraham.persona.energy?

Its listed price is $0.01.

What payment terms does paulgraham.persona.energy advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is paulgraham.persona.energy listed?

In x402 Bazaar. Superstables first indexed it on 26 Sept 2026.

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