Open Data Catalog Search
Find public dataset catalog entries in GovData (Germany) or open.bydata (Bavaria): titles, short descriptions, publisher, source/identity links, source modification date, per-resource license references and access/download links. One catalog GET, up to 10 datasets; never downloads the actual source files. No API key needed.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
Pay 0.01 USDC on Base to 0x88c4…672d0. The signed payment is good for 2 minutes.
- Paid to
- 0x88c4…672d0
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"paymentFlow": "upfront"
},
"payTo": "0x88c4de5f40C7B290D3D59a77718141082FE672d0",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"query": "Chiemgau",
"source": "openbydata"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"query": "Chiemgau",
"source": "openbydata",
"coverage": "Catalog metadata and source links only; source files are not downloaded, searched or merged. Search terms do not establish complete geographic coverage. Licenses may differ per resource; absence of a dataset-level license is not proof of unrestricted use. Review actual source terms before reusing content. Deduplication keys identify matching source URLs only, not all duplicate datasets.",
"datasets": [
{
"id": "example-dataset",
"title": "Example catalog entry",
"publisher": "Example publisher",
"resources": [
{
"title": "Example CSV",
"format": "CSV",
"access_urls": [
"https://example.com/data.csv"
],
"download_urls": [],
"license_reference": "http://dcat-ap.de/def/licenses/cc-by/4.0"
}
],
"source_url": "https://open.bydata.de/api/hub/repo/datasets/example-dataset",
"description": "Illustrative metadata, not a live dataset.",
"identity_url": "https://open.bydata.de/api/hub/repo/datasets/example-dataset",
"dataset_modified": null,
"deduplication_key": "6c9d0fdd7780951a758bdb48198b05b73dd82be8954650635257065dc04a0bd2",
"metadata_modified": null,
"resources_truncated": false,
"reuse_review_required": true,
"dataset_license_reference": null
}
],
"simulated": true,
"truncated": false,
"retrieved_at": "2026-10-24T00:00:00.000Z",
"total_matches": 1
}
}
},
"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": [
"source",
"query"
],
"properties": {
"query": {
"type": "string",
"maxLength": 80,
"minLength": 2
},
"source": {
"enum": [
"govdata",
"openbydata"
],
"type": "string"
}
},
"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"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-11-08 02:18Z
- Last indexed by Roundhouse
- 2026-11-12 05:30Z
- Last enriched (probe, favicon, geo)
- 2026-10-24 15:16Z
- x402 version
- 2
- Max timeout
- 120s
- Liveness probe
- HTTP 405
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. 18 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 Open Data Catalog Search 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=Open%20Data%20Catalog%20Search' 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://agent.chiemgaufilms.com/api/v1/open-data-search, 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.