The service's listing describes it this way: Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer. Website
A service is a tool an AI agent pays to call. Riddle Oracle is listed on this page under Other, settling on Base, through x402. 30-day settled volume on this page is $0.01. The listing comes from the service catalog. Open a row for payments, payers, and chains. See Bazaar, agent payment use cases, and the methodology.
Payee
- 0x255c…387bBase
Methodology · settled volume through 2026-11-10 · catalog Nov 12, 2026, 1:02 AM UTC
| Metric | 24h | 7d | 30d |
|---|---|---|---|
| Volume | $0.00 | $0.00 | $0.01 |
| Payments | 1 | 2 | 4 |
| Payers | 1 | 2 | 3 |
| Avg payment | $0.002 | $0.002 | $0.002 |
| Share of Other | 0.0% | 0.0% | 0.0% |
| Use-case rank | #291 | #458 | #703 |
Payers can be counted more than once when they paid through more than one facilitator.
Settled volume
$0.01
New
Payments
4
30d
Payers
3
30d
Avg payment
$0.002
volume / payments
Daily volume and buyers · last 30 days
Daily settled volume for Riddle Oracle
Data through Nov 10, 2026. Source: public settlement logs. Methodology
| Time | Daily settled volume for Riddle Oracle |
|---|---|
| 2026-10-23 | $0.00 |
| 2026-10-24 | $0.00 |
| 2026-10-25 | $0.00 |
| 2026-10-26 | $0.00 |
| 2026-10-27 | $0.00 |
| 2026-10-28 | $0.00 |
| 2026-10-29 | $0.00 |
| 2026-10-30 | $0.00 |
| 2026-10-31 | $0.00 |
| 2026-11-01 | $0.00 |
| 2026-11-02 | $0.00 |
| 2026-11-03 | $0.00 |
| 2026-11-04 | $0.00 |
| 2026-11-05 | $0.00 |
| 2026-11-06 | $0.00 |
| 2026-11-07 | $0.00 |
| 2026-11-08 | $0.00 |
| 2026-11-09 | $0.00 |
| 2026-11-10 | $0.00 |
Payers
Daily buyers for Riddle Oracle
| Time | Daily buyers for Riddle Oracle |
|---|---|
| 2026-10-23 | 1 |
| 2026-10-24 | 0 |
| 2026-10-25 | 0 |
| 2026-10-26 | 0 |
| 2026-10-27 | 0 |
| 2026-10-28 | 0 |
| 2026-10-29 | 0 |
| 2026-10-30 | 0 |
| 2026-10-31 | 0 |
| 2026-11-01 | 1 |
| 2026-11-02 | 0 |
| 2026-11-03 | 0 |
| 2026-11-04 | 1 |
| 2026-11-05 | 0 |
| 2026-11-06 | 1 |
Buyer concentration
50.0%
Top payer's share of lifetime volume. Not the period selected above.
Repeat buyers
33.3%
Lifetime buyers with more than one payment, divided by all buyers.
Endpoints and prices
Price, network, and asset come from the x402 Bazaar catalog.
| Endpoint | Network | Asset | Price | Scheme |
|---|---|---|---|---|
| https://riddlex402.vercel.app/api/riddle Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer. | base | USDC | $0.002 | exact |
Payment processors used
| Processor | Volume | Tx | Share |
|---|---|---|---|
| Coinbasex402 | $0.01 | 3 | 75.0% |
| PayAIx402 | $0.00 | 1 | 25.0% |
Other services in Other
All in this use case- pay.lnpay.ai#1 · $14.55K 30d
- Ausca Browser Session#2 · $1.51K 30d
- Pocket Network#3 · $607.32 30d
- win.oneshotagent.com#4 · $512.53 30d
- api.messari.io#5 · $347.85 30d
How we count Riddle Oracle
We read settlements directly from each chain's public records and refresh them every few minutes.
Data through 2026-11-10. Source: public settlement logs.
Cite this
APA
Agent GDP. (2026). Riddle Oracle [Data set]. Retrieved November 12, 2026, from https://agentgdp.io/service/riddlex402.vercel.app.
MLA
"Riddle Oracle." Agent GDP, 12 Nov. 2026, https://agentgdp.io/service/riddlex402.vercel.app.
BibTeX
@misc{agentgdp_riddle_oracle_2026,
author = {{Agent GDP}},
title = {Riddle Oracle},
year = {2026},
url = {https://agentgdp.io/service/riddlex402.vercel.app},
note = {Retrieved November 12, 2026. Data through 2026-11-10. Licensed under CC BY 4.0.},
license = {https://creativecommons.org/licenses/by/4.0/}
}Plain text
Riddle Oracle: $0.01 settled volume (30d), 4 payments, 3 buyers. Agent GDP, data through 2026-11-10. https://agentgdp.io/service/riddlex402.vercel.app Retrieved November 12, 2026.
Data from Agent GDP (https://agentgdp.io/service/riddlex402.vercel.app), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
Payers on a day can be counted more than once if they paid through more than one facilitator. Weekly change compares the last 7 full days with the 7 days before, once both weeks are fully covered on this service's networks; other periods compare with the previous period of the same length. The page link uses the service's site when we have one, and the payee address otherwise.
Volume and payment counts include earlier days. Transaction-level detail available from arc from October 26, 2026, base from October 23, 2026, polygon from October 27, 2026, solana from April 12, 2026, tempo from June 22, 2026.
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Source: agentgdp.io · Beta
HTML
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For agents
Check a seller before your agent pays it
The same check as JSON, $0.01 per call in USDC on Base over x402. In an MCP client, use the tool check_seller_before_paying.
GET /api/v1/x402/check?q=riddlex402.vercel.appOr check every new payee automatically:
npm i @agentgdp/check-before-payGet API access Higher limits cover the same figures. Full history, saved views, and morning alerts are on Pro.
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