---
title: "Where our numbers come from"
description: "The directories this store's ecosystem counts are built from, each with the last time it actually answered — derived from stored rounds, not maintained by hand."
canonical: "https://scvd.store/sources"
url: "https://scvd.store/sources"
---

# Where our numbers come from

The directories this store's ecosystem counts are built from, each with the last time it actually answered — derived from stored rounds, not maintained by hand.

## What this is

Every ecosystem figure this store publishes rests on a handful of public directories, and this page names all of them beside the last time each one actually answered us, derived from the stored weekly rounds rather than maintained by hand.

## Proposition

Every ecosystem figure this store publishes rests on a handful of public directories, and this page names all of them beside the last time each one actually answered us, derived from the stored weekly rounds rather than maintained by hand.

## Price

Nothing here costs money and nothing here is for sale: this is the store reporting on its own reach, and a measurement project that charged for its list of limitations would have the incentive pointing the wrong way.

## Free first

The register and the wards heartbeat are free to read as a page or as JSON, with no account and no key, and the rows carry the fields to recount them yourself.

## Opened

2026-09-04

## How to call

### This page

GET https://scvd.store/sources with Accept: application/json for this twin, text/html for the page. No account, no key.

### One source

Every row is in `sources`; join a row to a signed round on `last_successful_week`.

### The heartbeat

The `heartbeat` block says whether the weekly round is still running and whether the newest one wrote anything.

### Rederive

GET https://scvd.store/corpus.json for the signed weeks, then recount each source from each round's own per_source block.

## Errors

### This page

None: a GET here always answers 200, as HTML or JSON by Accept.

### Empty history

A store with no stored rounds answers 200 with every source at its roster state and no liveness behind it. That is a fact about our age, not an error.

## Security

### What this does in your name

Nothing. A GET here reads stored rounds; no directory is contacted, nothing is signed, nothing is fetched from anyone on your behalf.

### What it stores about you

Nothing about you. The porch counts a visit by surface, never by caller.

### What we never do

No account, cookie, caller identifier or IP-based budget. Budgets bound our cost, not caller rank. Requests are never sold, shared or published. The weekly census reads public discovery feeds, never these requests.

### Standards

Disclosure is private-first and symmetric: notify the operator before publication, including our own defects. Corrections are dated and public. Signed artifacts verify offline against our published key.

### Reporting

https://scvd.store/.well-known/security.txt for a vulnerability, https://scvd.store/corrections for something we got wrong.

## Artifact

source_register

## At

2026-10-20T01:07:44.967Z

## Newest round

- **Week** — 2026-W42
- **At** — 2026-10-18T11:01:14.527Z

## Rounds read

11

## History truncated

false

## Sources

### Item 1

- **Source** — discovery
- **Home** — <https://api.cdp.coinbase.com>
- **What** — The CDP x402 Bazaar's discovery list — every resource a settle has ever registered.
- **Status** — live
- **Last successful read** — 2026-10-18T11:01:14.527Z
- **Last successful week** — 2026-W42
- **Hosts on last read** — 2223
- **Rounds since answer** — 0
- **Consecutive failures** — 0
- **Rounds seen** — 11
- **Partial rounds** — 5
- **Last answered week** — 2026-W42
- **Roster disagrees** — false

### Item 2

- **Source** — fuchss
- **Home** — <https://x402.fuchss.app/providers>
- **What** — The largest free full enumeration of x402 hosts we know of, ~10k across ~27 letter pages.
- **Status** — live
- **Last successful read** — 2026-10-18T11:01:14.527Z
- **Last successful week** — 2026-W42
- **Hosts on last read** — 15287
- **Rounds since answer** — 0
- **Consecutive failures** — 0
- **Rounds seen** — 10
- **Partial rounds** — 0
- **Last answered week** — 2026-W42
- **Roster disagrees** — false

### Item 3

#### Source

x402_list

#### Home

<https://x402-list.com>

#### What

An open, continuously monitored directory of x402 services; free JSON, no auth, and it carries its own provenance (submitted, imported from the Bazaar, imported from x402scan).

#### Status

live

#### Last successful read

2026-10-18T11:01:14.527Z

#### Last successful week

2026-W42

#### Hosts on last read

1010

#### Rounds since answer

0

#### Consecutive failures

0

#### Rounds seen

7

#### Partial rounds

0

#### Last answered week

2026-W42

#### Roster disagrees

false

### Item 4

- **Source** — leaderboard
- **Home** — <https://agent402.tools>
- **What** — Seller leaderboard — a population source and the only outside read of our own rank.
- **Status** — live
- **Last successful read** — 2026-10-18T11:01:14.527Z
- **Last successful week** — 2026-W42
- **Hosts on last read** — 25
- **Rounds since answer** — 0
- **Consecutive failures** — 0
- **Rounds seen** — 11
- **Partial rounds** — 0
- **Last answered week** — 2026-W42
- **Roster disagrees** — false

### Item 5

#### Source

agentic_market

#### Home

<https://agentic.market>

#### What

A Bazaar mirror with its own ingest; it lists this store, which is how we learned its ingest prunes by recency.

#### Status

live

#### Last successful read

2026-10-18T11:01:14.527Z

#### Last successful week

2026-W42

#### Hosts on last read

199

#### Rounds since answer

0

#### Consecutive failures

0

#### Rounds seen

7

#### Partial rounds

0

#### Last answered week

2026-W42

#### Roster disagrees

false

### Item 6

#### Source

402index.io

#### Home

<https://402index.io>

#### What

A directory of paid endpoints across L402, x402 and MPP — 104,106 rows on 2026-09-04, the largest frame this ward reads. The free JSON list at 100 requests a minute, walked in hourly batches, one pass a week; only its x402 rows enter the census. The roster once said its free API rate-limited into 402s; the keeper's hand showed it does not.

#### Status

live

#### Last successful read

2026-10-18T11:01:14.527Z

#### Last successful week

2026-W42

#### Hosts on last read

6111

#### Rounds since answer

0

#### Consecutive failures

0

#### Rounds seen

7

#### Partial rounds

0

#### Last answered week

2026-W42

#### Roster disagrees

false

### Item 7

#### Source

x402scan.com

#### Home

<https://www.x402scan.com>

#### What

A settlement indexer with a resource directory — the only source here that watches money move rather than doors exist. A cent a page in USDC on Base, priced by the keeper's hand on 2026-09-04 ($0.03 spent), the price living nowhere but the 402 itself. Walked in hourly batches from the field wallet under the wallet law: one pass a week, a dollar a pass, and a pass that reaches the dollar is truncated, not continued — so a dollar a week is the ceiling, not the average.

#### Status

never_answered

#### Consecutive failures

7

#### Rounds seen

7

#### Partial rounds

0

#### Roster disagrees

true

### Item 8

#### Source

endpoint.x402jp.com

#### Home

<https://endpoint.x402jp.com/hosts>

#### What

A crawler-built index of x402 hosts ranked by catalogued paid routes — 19,366 routes across 1,031 hosts when it was read by hand on 2026-09-03.

#### Status

unread

#### Consecutive failures

0

#### Rounds seen

0

#### Partial rounds

0

#### Roster disagrees

false

#### Why unread

No response shape has been captured. The site is unreachable from every sandbox this store is built in, so the 2026-09-03 read-off in research/x402-pulse.md came from a pasted copy of the page and cannot be refreshed from a build.

#### Unblock

One hand-run read from the keeper's browser, saved as a fixture, exactly like every feed before it. The store's own row there disagrees with the counter (61 routes against 39), so the capture is worth having for its own sake.

### Item 9

#### Source

agent-tools.cloud

#### Home

<https://agent-tools.cloud>

#### What

An aggregator of x402scan, awesome-x402 and the CDP Bazaar with self-submissions on top; 20k+ entries, liveness-probed, refreshed every six hours.

#### Status

unread

#### Consecutive failures

0

#### Rounds seen

0

#### Partial rounds

0

#### Roster disagrees

false

#### Why unread

No response shape has been captured and no public enumeration endpoint is documented anywhere we could reach.

#### Unblock

One hand-run read. Note before spending effort: it aggregates two frames we already hold, so its marginal population may be small — worth measuring against the union before it is built.

### Item 10

#### Source

x402scout.com

#### Home

<https://x402scout.com>

#### What

A self-described canonical registry with 0-100 trust scores, MCP-native, rescanning every six hours.

#### Status

unread

#### Consecutive failures

0

#### Rounds seen

0

#### Partial rounds

0

#### Roster disagrees

false

#### Why unread

No response shape has been captured, and the host is unreachable from every sandbox this store is built in. Note also what would NOT be read if it were: its 0-100 trust scores are a standing verdict on operators, and this store does not republish other people's rankings — only the host list would enter the population.

#### Unblock

One hand-run read of whatever list endpoint it serves, saved as a fixture, with the scoring fields dropped at the parse rather than carried and ignored.

### Item 11

#### Source

nohumans.directory

#### Home

<https://nohumans.directory>

#### What

A directory that probes every listing every fifteen minutes and reports on-chain-proven buyers.

#### Status

unread

#### Consecutive failures

0

#### Rounds seen

0

#### Partial rounds

0

#### Roster disagrees

false

#### Why unread

No response shape has been captured, and the host is unreachable from every sandbox this store is built in. It is the highest-cadence prober on this roster — every fifteen minutes against every listing — so its host list is the freshest of the free frames and the one most likely to disagree with our weekly picture.

#### Unblock

One hand-run read. Its own prober already visits us, so the relationship exists in one direction and has simply never been read in the other.

## What this is not

Not a rating of these directories and not a verdict on their uptime. Every row says what OUR round got when it asked, from our vantage, on our cadence. A source we cannot read may be perfectly healthy for everyone else; that is a fact about this instrument's reach, counted against the instrument.

## How to rederive

Every field is read out of the stored ward rounds' own `population.per_source` block, newest first, where `hosts: null` means the source could not be read that round. Nothing here is written by hand or cached: fetch the rounds and recount.

## Heartbeat

### Artifact

ward_heartbeat

### At

2026-10-20T01:07:44.804Z

### Verdict

beating

### Newest week

2026-W42

### Newest at

2026-10-18T11:01:14.527Z

### Hours since newest

38.1

### Newest wrote

- **Hosts** — 5137
- **Population known** — 17854
- **Sources answered** — 7
- **Sources asked** — 8

### Weeks missing

none

### Weeks held

11

### Detail

Round 2026-W42 wrote 5137 host rows (including any not-probed listings) against a known population of 17854, with 7 of 8 sources answering.
