a2uicatalog
Official Python client for the A2UI Atomic Catalog: typed UI atoms an agent composes into real interfaces. No account, no API key, no dependencies (standard library only).
from a2uicatalog import Client
c = Client() # https://a2uicatalog.ai
blocks = [{"type": "heading", "text": "This week"},
{"type": "stat_card", "value": "1,234", "label": "Daily users", "delta": "+12%"}]
c.validate(blocks, strict=False) # local check, raises ValidationError on a bad atom
html = c.render(blocks, title="Weekly numbers") # one self-contained HTML page
open("page.html", "w").write(html)
print(c.ask("countdown timer")["results"][0]["name"]) # ranked catalogue search
Methods
| Method | Endpoint |
|---|---|
spec() |
GET /spec.json (cached in memory) |
catalogs() |
GET /catalogue/index.json |
atom_schema(type), atom_types() |
from GET /catalogue/atoms-json-schema.json (cached) |
ask(question) |
POST /ask |
compose(prompt) |
POST /api/compose (free tier, 20 per IP per day) |
render(payload, surface=None) |
POST /api/render (50 per IP per day) |
render_batch(payloads) |
POST /api/render/batch (1 to 25 payloads) |
check(payload), validate(payload) |
local, against the published schema |
payload is {"blocks": [...]}, a list of blocks, or one block. A 429 is retried once if the server's
Retry-After is 30 s or less; a longer wait raises RateLimitError with .retry_after.
check/validate follow the published per-atom schema, which is strict (unknown fields are problems).
Pass strict=False to report only unknown atoms and missing required fields.
Errors derive from A2UIError: HTTPError, RateLimitError, NetworkError, UnknownAtomError,
ValidationError (.problems).
Independent project, MIT licensed, not affiliated with Google or Anthropic.
Source: https://github.com/a2uicatalog/a2ui (sdk/python/).
1 maintainer
Metadata
1 maintainer
Release files for a2uicatalog 0.1.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| a2uicatalog-0.1.0.tar.gz | 11.3 kB | With provenance | Details for a2uicatalog-0.1.0.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| a2uicatalog-0.1.0-py3-none-any.whl | Python 3 | none | any | Details for a2uicatalog-0.1.0-py3-none-any.whl |
Total release size: 20.1 kB
Release files / a2uicatalog-0.1.0.tar.gz
| Download URL | a2uicatalog-0.1.0.tar.gz |
|---|---|
| Size | 11.3 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
115e791846bf8de177df628fd931c1d68ea4ea74cb653c847d118ee82e0ec054
|
|
BLAKE2b-256 checksum How to use checksums |
a17058da6ce808897e4279e139c74d76d9615e6545d55351f2a0d27b51d151a5
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 1, 2026.
Transparency logRelease files / a2uicatalog-0.1.0-py3-none-any.whl
| Download URL | a2uicatalog-0.1.0-py3-none-any.whl |
|---|---|
| Size | 8.9 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
8a0785eb8220f5fd57db0e93fbe5eb20ca66f07759da6810eb248dea60e53e30
|
|
BLAKE2b-256 checksum How to use checksums |
13d25579cda1713096a8791c1978e471cd070c7614532f40d333d8594e5a3f41
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 1, 2026.
Transparency logSecurity for a2uicatalog 0.1.0
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
Full provenance
All 2 files in this release have been uploaded with provenance metadata.
Attestation for a2uicatalog-0.1.0.tar.gz
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 1, 2026.
Transparency logA note on package security
PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.
To learn more about protecting yourself from malicious actors, visit our package security documentation.
