The service's listing describes it this way: Store a JSON value under a key in your persistent memory (namespace = your paying wallet). Website
A service is a tool an AI agent pays to call. Port 402 is listed on this page under Agent tooling / MCP, settling on Base, through x402. 30-day settled volume on this page is $0.03. The listing comes from the service catalog. Open a row for payments, payers, and chains. See Bazaar, agent payment use cases, and the methodology.
FacilitatorsCoinbase
Payee
- 0x672a…b7f7Base
Methodology · settled volume through 2026-11-03 · catalog Nov 3, 2026, 3:02 AM UTC
| Metric | 24h | 7d | 30d |
|---|---|---|---|
| Volume | $0.00 | $0.03 | $0.03 |
| Payments | 1 | 20 | 20 |
| Payers | 1 | 4 | 4 |
| Avg payment | $0.001 | $0.0017 | $0.0017 |
| Share of Agent tooling / MCP | 0.0% | 0.0% | 0.0% |
| Use-case rank | #28 | #37 | #54 |
Payers can be counted more than once when they paid through more than one facilitator.
Settled volume
$0.03
Weekly change from Nov 7
Payments
20
7d
Payers
4
7d
Avg payment
$0.0017
volume / payments
Daily settled volume for Port 402
Data through Nov 3, 2026. Source: public settlement logs. Methodology
| Time | Daily settled volume for Port 402 |
|---|---|
| 2026-10-30 | $0.00 |
| 2026-10-31 | $0.02 |
| 2026-11-01 | $0.01 |
| 2026-11-02 | $0.00 |
| 2026-11-03 | $0.00 |
Payers
Daily buyers for Port 402
| Time | Daily buyers for Port 402 |
|---|---|
| 2026-10-30 | 2 |
| 2026-10-31 | 8 |
| 2026-11-01 | 3 |
| 2026-11-02 | 1 |
Buyer concentration
87.9%
Top payer's share of lifetime volume. Not the period selected above.
Repeat buyers
25.0%
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://port-402-production.up.railway.app/v1/memory/:key Store a JSON value under a key in your persistent memory (namespace = your paying wallet). | base | USDC | $0.002 | exact |
| https://port-402-production.up.railway.app/v1/memory List the keys in your persistent memory. | base | USDC | $0.001 | exact |
| https://port-402-production.up.railway.app/v1/export Export your whole memory as one signed JSON document (format port402-memory-export/1, sha256 + Ed25519 integrity block). | base | USDC | $0.002 | exact |
| https://port-402-production.up.railway.app/v1/inbox Read your inbox (oldest first, up to 50). ?ack=true removes what you read. Due reminders land here too. | base | USDC | $0.001 | exact |
| https://port-402-production.up.railway.app/v1/reminders Alarm clock for agents: schedule a message for later (10 s to 366 days). When due it lands in your inbox and, if you give an https webhook, is POSTed to it too. | base | USDC | $0.005 | exact |
Payment processors used
| Processor | Volume | Tx | Share |
|---|---|---|---|
| Coinbasex402 | $0.03 | 20 | 100.0% |
Other services in Agent tooling / MCP
All in this use case- stall-row#1 · $87.44 30d
- agents.chain.link#2 · $61.98 30d
- api.loyalspark.online#3 · $61.40 30d
- NIGHTSHIFT Services#4 · $25.05 30d
- api.blockchainmoneymap.com#5 · $21.54 30d
How we count Port 402
We read settlements directly from each chain's public records and refresh them every few minutes.
Data through 2026-11-03. Source: public settlement logs.
Cite this
APA
Agent GDP. (2026). Port 402 [Data set]. Retrieved November 3, 2026, from https://agentgdp.io/service/port-402-production.up.railway.app.
MLA
"Port 402." Agent GDP, 3 Nov. 2026, https://agentgdp.io/service/port-402-production.up.railway.app.
BibTeX
@misc{agentgdp_port_402_2026,
author = {{Agent GDP}},
title = {Port 402},
year = {2026},
url = {https://agentgdp.io/service/port-402-production.up.railway.app},
note = {Retrieved November 3, 2026. Data through 2026-11-03. Licensed under CC BY 4.0.},
license = {https://creativecommons.org/licenses/by/4.0/}
}Plain text
Port 402: $0.03 settled volume (7d), 20 payments, 4 buyers. Agent GDP, data through 2026-11-03. https://agentgdp.io/service/port-402-production.up.railway.app Retrieved November 3, 2026.
Data from Agent GDP (https://agentgdp.io/service/port-402-production.up.railway.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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