Open skills for working with CANOA — Corpus Apertum Nummorum Orbis Antiqui (https://canoanumis.org), an open corpus of ancient world coinage: Greece, Rome, Persia, Carthage, Byzantium and more.
The corpus aggregates ~128,500 coin types, 540,000+ museum specimens, 9,833 hoards, 17,074 dies and 2,600+ mints from the numismatics.org ecosystem and museum collections. Everything is exposed through a free, key-less JSON API — see the skills for how to use it.
| Skill | What it does |
|---|---|
skills/canoa-api/ |
How to use the CANOA API for numismatics, history, education — endpoints, filters, recipes for kids, hobbyists and researchers, citation and licensing rules |
skills/canoa-hoard-analysis/ |
Analyze coin hoards of a region: distribution by emperors and periods, charts (matplotlib), PDF article (headless Chromium) |
With Hermes Agent (or any Agent Skills client), install from the public catalog:
hermes skills search canoa-api
hermes skills install skills-sh/canoa-dev/canoa-skills/skills/canoa-apiOr directly from this repository:
hermes skills install canoa-dev/canoa-skills/skills/canoa-apiThe skill needs no API key and no setup — just read it and follow the examples
(curl, python3).
# Coins of Nero struck in Rome:
curl "https://canoanumis.org/api/coins?authority=http://nomisma.org/id/nero&mint=36&per_page=100"
# Coins of Rome 54–68 AD:
curl "https://canoanumis.org/api/coins?date_from=54&date_to=68&mint=36"
# Coin card:
curl "https://canoanumis.org/api/coins/ric-i-second-edition-nero-63/"
# Mints as GeoJSON:
curl "https://canoanumis.org/api/mints.geojson?has_coins=1"Full endpoint reference and recipes are inside
skills/canoa-api/SKILL.md.
- Coin type data — Open Database License (ODbL) 1.0, source: numismatics.org projects (OCRE, CRRO, PELLA, …)
- Specimen images — © the holding museums; many collections allow non-commercial use only with attribution
- Per-collection licenses: https://canoanumis.org/LICENSES.md
- This skill itself — CC BY 4.0 (see LICENSE)
When publishing results, credit: Data: CANOA (canoanumis.org), ODbL; image: © <museum>.
CANOA aggregates data from the numismatics.org ecosystem and museum collections.
Our forks
canoa-dev/nomisma-symbol-svg— fork ofnomisma/symbol-svg, SVG images for symbols (primarily monograms) related to coinagecanoa-dev/nomisma_raw— fork ofnomisma/data, Nomisma ID text fragments for the wiki
Upstream nomisma.org projects (GitHub)
nomisma/symbol-svg— SVG images for coinage symbols and monogramsnomisma/data— Nomisma ID text fragmentsnomisma/site— nomisma.org website (Jekyll)nomisma/framework— nomisma.org frameworknomisma/scripts— data migration and maintenance scripts
Numismatics.org data projects (sources of the corpus)
- OCRE — Online Coins of the Roman Empire
- CRRO — Coinage of the Roman Republic Online
- PELLA — coinage of Macedon
- SCO — Seleucid Coins Online, PCO — Ptolemaic Coins Online, BIGR, AGCO, AOD, LCO, COI, CM — Renaissance Medals Online, OSCAR
- Nomisma.org — controlled vocabulary for numismatic concepts
RDF data dumps are published at numismatics.org/rdf/. Museum specimen images come from the holding collections (British Museum, BnF, CN, Fitzwilliam, Dumbarton Oaks, and others — see LICENSES.md).
Skills are plain folders with a SKILL.md (Agent Skills format). To add a skill:
- Create
skills/<name>/SKILL.mdwithname:anddescription:frontmatter - Test it:
hermes chat --toolsets skills -q "Use the <name> skill to ..." - Open a pull request
New skills about ancient numismatics, history, museum data and education are
welcome. Before publishing, run hermes skills publish — the built-in safety
scan must pass.
- Corpus: https://canoanumis.org
- API docs: https://canoanumis.org/llms-full.txt
- Licenses: https://canoanumis.org/LICENSES.md
- Skills Hub: https://hermes-agent.nousresearch.com/docs/skills/
- Agent Skills spec: https://agentskills.io
Contact: info@canoanumis.org (suggestions), abuse@canoanumis.org (complaints, copyright).