402registry
402registry is an MCP server on Base.
- Sato Score75
- ChainsBase
402registry is a partly open-source MCP server on Base, with last code activity on 2026-10-25 (Active). Sato Score 75/100 (how open, active and verifiable it is, not a safety grade), as of 2026-11-09. How the score works →
Check what an install would ask of your keys, before you run it →Last commit Oct 25, 2026
Listed from 402registry.com on 2026-11-09. Install: not attempted — no install path on record. Evidence →
Next step
Watch 402registry
One email if what we observe changes — its repo goes quiet or disappears, or the listing is retired. Nothing else.
Check it from your agent
Add Sato Hub’s MCP server (no key), then ask:
https://satohub.ai/api/mcpRun Sato Hub Preflight on paranormalen2/402registry-mcp before I use it.Your project?
Prove you control the domain and correct this page — description, links, tags, chains. A claim proves control, not verification: it never changes the Sato Score.
Claim this listing →Overview
https://402registry.com answered on 2026-11-09 (page title: "402registry — does an AI agent actually see your site?"). Source is public at paranormalen2/402registry-mcp (0★); created 2026-10-13, last pushed 2026-10-25. Documentation at https://402registry.com/llms.txt answered on 2026-11-09. An MCP initialize handshake against https://402registry.com/mcp completed on 2026-11-09 and listed 4 tools. One unpaid request to https://402registry.com/buy/one answered HTTP 402 with a payment payload we could parse (network eip155:8453, asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913). No payment was sent: a 402 says the endpoint asked for money in a readable shape, not that paying works or that the seller delivers. The host serves an x402 capability manifest at /.well-known/x402. Listed from a maintainer submission; every field is self-reported except the checks above, which Sato Hub ran itself on 2026-11-09.
Sato Score
75/100· HighHow open, active & verifiable — not a safety or returns grade.
- Maintenance & liveness
- 35/35
- Code transparency
- 12/20
- Interface verifiability
- 10/10
- Docs & demo
- 6/10
- Listing transparency & provenance
- 6/15
- Independent verification
- 6/10
Live endpoint probed — we called the hosted MCP endpoint and it answered with its real tool inventory (proves the interface works, not runtime safety).
Evidence — listed vs checked · what the words mean
Listed from 402registry.com on 2026-11-09. Install: not attempted — no install path on record.
| Claim | Value | Evidence | Source | Checked |
|---|---|---|---|---|
| Chains supported | Base | self-reported | 402registry.com | as of 2026-11-09 |
| Verification status | Self-Reported — not independently reviewed | self-reported | 402registry.com | as of 2026-11-09 |
| Recent activity | last commit 2026-10-25 | observed | github.com/paranormalen2/402registry-mcp | 2026-11-09 |
| MCP endpoint answers | answered — 4 tools listed | observed | 402registry.com | 2026-11-09 |
| ERC-8004 registration | declared address not found in the registry | observed | — | 2026-11-09 |
| Description | text setconfidence 1.00 | self-reported | — | as of 2026-11-09 |
| Sato Score | 75/100 (High)how open, active and verifiable — not a safety or quality grade | computed | satohub.ai | 2026-11-09 |
Self-reported rows are the project’s own words, dated when we recorded them — not a check. Only reproduced and reviewed rows carry a mark. None of these rows is a safety or quality rating.
Tool inventory — 4 tools, probed live 2026-11-09
lookup_site— Free. The last dated verdict for a website, if it was ever checked and listed: verdict, score and its band, date, badge, profile URL, every public finding with the agent skill (aiskills402.com) that fget_pricing— Every product for sale — the check (one payment, one check) and the catalog snapshot — with its price, the query parameters the paid request needs, and the exact x402 v2 payment requirements. Call thiget_docs— The whole machine guide as JSON: quickstart, what each verdict means, packs, the rules every check runs, and every public route.get_service_status— Whether the service is selling right now, in which mode and on which network, and if not, why not. This is configuration, not liveness: the health endpoint is at /health.
- Answers a handshake
- yes · 2026-11-09
- Answers a call
- yes — get_pricing returned in 30 ms
Live probe verifies the interface responds — not what the tools do, their safety, or their output quality. The call is one read-only tool named by this server's own list (list_/get_/search_, no mutating verb anywhere in the name, no required arguments and none that look like a key, an address or an amount), asked once a day with no arguments. Not asked is not a failure.
Observed record — 1 daily check since 2026-11-09
- Succeeded
- 1
- Failed
- 0
- Their error
- 0
- Unattributed
- 0
This is the share of our daily checks that succeeded — not an availability guarantee. A check can fail because the host was down, because our runner timed out, or because the network in between dropped it, and only the first of those is a fact about this project. Failures are split by what we can attribute; anything we cannot attribute is counted, not hidden.
Details
- Chains
- Base
- Open source
- Partial
- Last checked
- 2026-11-09
Marketplace Signals
No marketplace signals recorded for this resource yet.
Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.
Listing History
Recorded changes to 402registry's listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.
- Nov 9, 2026Listed on Sato Hub
- Nov 9, 2026Sato Hub began tracking this listing
- Nov 9, 2026Updated: description long
Compared with
Appears in
- x402 payment tools on Base, scored →
- Base MCP servers, scored →
- x402-ready tools, scored →
- Payment tools for agents, scored →
- Hosted MCP endpoints answering today, scored →
- Base MCP servers you can use without a local server →
- x402 endpoints checked for a payment-required answer →
- x402 facilitators on Base →
- x402: agent payments over HTTP →
- MCP: the tool interface for agents →
- Onchain agents on Base →
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Reference
QuestionsWhat people ask about this pageShowHide
Questions people ask about 402registry
- Is 402registry open source?
- Partly. Some of 402registry is published as source (https://github.com/paranormalen2/402registry-mcp) and some is not. Checked as of 2026-11-09.
- Which chains does 402registry support?
- 402registry lists support for Base as of 2026-11-09.
- Is 402registry still maintained?
- The most recent code activity Sato Hub observed was on 2026-10-25 (last commit 2026-10-25), which Sato Hub labels "Active". Posts on X are not counted as maintenance. Activity is a recency signal, not a quality judgment.
- How do I install or run 402registry?
- Sato Hub has no deploy spec for 402registry; follow the project's own documentation at https://402registry.com/llms.txt.
- Is 402registry verified on Sato Hub?
- Sato Hub holds one earned check for 402registry: Live endpoint probed — we called the hosted MCP endpoint and it answered with its real tool inventory (proves the interface works, not runtime safety). Its Sato Score is 75 of 100, a measure of how open, active and verifiable the project is, not a safety, quality or returns grade.
Cite this pagePlain text, APA or BibTeXShowHide
Cite this page
Sato Hub. "402registry — Sato Hub." Sato Hub, updated 2026-11-09, accessed 2026-11-09. https://satohub.ai/resources/402registryData last refreshed 2026-11-09; this page is rebuilt daily. Citations carry the date so a reader can tell which snapshot a claim came from. Catalog data is licensed CC-BY-4.0.
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