Source coverage drift
Compare source coverage on exactly the same declared record cohort across two snapshots. Report per-record gained/lost sources, per-source count changes, and global coverage drift. Reject unknown sources or missing/duplicate records. Coverage does not establish source quality.
SearchLiveeip155:8453Exactvia cdp
Expansion-20261011ContextBounded-computationEvidenceDeterministic
Calls · 30d
2↑ 7.7%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far.
$71.48
Verified settled volume
1,272 settlements proven x402 by their on-chain EIP-3009 marker.
$0.044
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-13 01:36Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.0445USDC≈ $0.0445 USD
on Base · exact scheme
Pay 0.0445 USDC on Base to 0xec84…2de28. The signed payment is good for 1 minute.
- Paid to
- 0xec84…2de28
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 44500 smallest units
44500units
on Arbitrum · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xec84…2de28
- Token contract
- 0xaf88…e5831
- Payment window
- 1 minute
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
"amount": "44500",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28",
"amount": "44500",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"after": {
"records": [
{
"recordId": "r1",
"sourceIds": [
"s2"
]
}
],
"snapshotId": "v2"
},
"before": {
"records": [
{
"recordId": "r1",
"sourceIds": [
"s1"
]
}
],
"snapshotId": "v1"
},
"dataClass": "synthetic",
"recordIds": [
"r1"
],
"sourceIds": [
"s1",
"s2"
]
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"result": {
"limits": [
"Public/synthetic is a caller declaration, not content inspection…"
],
"records": [
{
"recordId": "r1",
"lostSourceIds": [
"s1"
],
"gainedSourceIds": [
"s2"
]
}
],
"sources": [
{
"delta": -1,
"sourceId": "s1",
"afterRecordCount": 0,
"beforeRecordCount": 1
}
],
"dataClass": "synthetic",
"inputSha256": "sha256:78b1d600b12cfec6255760f8fc04a226f1c19eaedbf820efc0e49f156…",
"resultSha256": "sha256:52cfb1e5f2a952a9891af58ef2311d43d04b4984443939ea14ef173dd…",
"lostSourceIds": [
"s1"
],
"gainedSourceIds": [
"s2"
],
"sourcesVerified": false,
"afterCoverageBps": 5000,
"coverageDeltaBps": 0,
"beforeCoverageBps": 5000,
"changedRecordCount": 1
},
"offerId": "source-coverage-drift",
"version": "maha-microproducts/0.1",
"boundaries": [
"Public or synthetic inputs only. Caller labels are declarations,…"
],
"inputDigest": "sha256:78b1d600b12cfec6255760f8fc04a226f1c19eaedbf820efc0e49f156…",
"receiptDigest": "sha256:e125b4e4e29419609dd279251eed668c3ed2b80dc87d7b24bb49a40b5…",
"amountBaseUnits": "44500"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"dataClass",
"sourceIds",
"recordIds",
"before",
"after"
],
"properties": {
"after": {
"type": "object"
},
"before": {
"type": "object"
},
"dataClass": {
"enum": [
"public",
"synthetic"
],
"type": "string"
},
"recordIds": {
"type": "array",
"maxItems": 64,
"minItems": 1
},
"sourceIds": {
"type": "array",
"maxItems": 64,
"minItems": 1
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"version",
"offerId",
"amountBaseUnits",
"inputDigest",
"result",
"boundaries",
"receiptDigest"
],
"properties": {
"result": {
"type": "object"
},
"offerId": {
"enum": [
"source-coverage-drift"
],
"type": "string"
},
"version": {
"enum": [
"maha-microproducts/0.1"
],
"type": "string"
},
"boundaries": {
"type": "array",
"maxItems": 128,
"minItems": 0
},
"inputDigest": {
"type": "string",
"maxLength": 71
},
"receiptDigest": {
"type": "string",
"maxLength": 71
},
"amountBaseUnits": {
"enum": [
"44500"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
}
},
"maha-offer": {
"asset": "USDC",
"amount": "44500",
"method": "POST",
"status": "available",
"network": "eip155:8453",
"offerId": "source-coverage-drift",
"networks": [
"eip155:8453",
"eip155:42161"
],
"assetDecimals": 6,
"declarationUrl": "https://www.mahastrategies.com/api/discovery/x402-offers/source-coverage-drift",
"maxRequestBytes": 32768,
"canonicalResource": "https://www.mahastrategies.com/api/v1/micro/source-coverage-drift",
"declarationInline": "compact",
"payableInProduction": true,
"fullSourceTextStored": false,
"verbatimExcerptsRetained": false
},
"declaration-integrity": {
"metadataVersion": "2026-08-10",
"canonicalResource": "https://www.mahastrategies.com/api/v1/micro/source-coverage-drift",
"declarationDigest": "sha256:bce97987565a380c908f176375dd4968891470b0411e35a9b977a7fec8865de4"
}
}Provenance
- Seen in the source catalog
- 2026-10-13 01:36Z
- Last indexed by Roundhouse
- 2026-10-26 17:30Z
- Last enriched (probe, favicon, geo)
- 2026-10-11 09:46Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 200
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Source coverage drift and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Source%20coverage%20drift' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://www.mahastrategies.com/api/v1/micro/source-coverage-drift, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.