Canadian Legal Infrastructure · Citation API

Citation validation for Canadian law.

The full API reference is open — no account needed to read it. Sign up only when you want a key: 1,000 credits a month, free, no card.

Maple Juris verifies legal citations against a structured graph of federal and Ontario legislation — returning the real provision, its exact text, and a confidence score. Built for legal research and M&A due diligence.

What we offer

Citation validation

Give us a statute, section, and jurisdiction. We confirm whether it resolves to a real, in-force provision and return the exact statutory text.

Graph-backed retrieval

A structured knowledge graph encodes the hierarchy, amendment history, and temporal versions of Canadian legislation — not a flat text search.

Confidence scoring

Every result carries a confidence score with a breakdown of how the match was made, plus alternative citations for ambiguous references.

Coverage

In forcePartially In ForcePlanned

FederalJustice Laws CanadaIn force
Ontarioe-LawsIn force
British ColumbiaBC LawsPartially In Force
AlbertaKing's PrinterPartially In Force
YukonYukon Legislative CounselPartially In Force
New BrunswickKing's Printer NBPartially In Force
ManitobaKing's Printer MBPartially In Force
Nova ScotiaNova Scotia LegislaturePartially In Force
Newfoundland & LabradorHouse of AssemblyPartially In Force
SaskatchewanKing's Printer SKPartially In Force
Northwest TerritoriesTerritorial PrinterPartially In Force
QuebecLégisQuébecPlanned

Federal & Ontario · 8,900 acts & regulations · 4.7M structural nodes · hierarchical, amendment & temporal structure

Citations we cannot resolve return an explicit "unsupported" status — never a guess.

Read the whole API before you sign up.

Every endpoint, parameter, and response field is public — no account, no sales call. The key is the only thing you sign up for.

Validate a citation

Send it as a lawyer would write it.

Request

curl -X POST $API/v1/validate-citation \
  -H "Authorization: Bearer $MAPLEJURIS_KEY" \
  -d '{"query": "Criminal Code s. 718"}'

200 · application/json

{
  "valid": true,
  "validity_score": 0.94,
  "status": "resolved",
  "resolution_level": "provision",
  "statute": {
    "short_title": "Criminal Code",
    "chapter": "C-46",
    "jurisdiction": "CA",
    "slug": "ca/act/rsc-1985-c-c-46"
  },
  "target": {
    "display_label": "Criminal Code, RSC 1985, c C-46, s 718"
  }
}

Request

curl -X POST $API/v1/validate-citation/batch \
  -H "Authorization: Bearer $MAPLEJURIS_KEY" \
  -d '[{"query": "Criminal Code s. 718"},
       {"query": "PIPEDA s. 5"}]'

200 · application/json

[
  {
    "query": "Criminal Code s. 718",
    "valid": true,
    "validity_score": 0.94,
    "status": "resolved"
  },
  {
    "query": "PIPEDA s. 5",
    "valid": true,
    "validity_score": 0.91,
    "status": "resolved"
  }
]

Request

curl -X POST $API/v1/discover \
  -H "Authorization: Bearer $MAPLEJURIS_KEY" \
  -d '{"situation": "Fired the day after reporting
        a safety hazard", "top_k": 10}'

200 · application/json

{
  "status": "resolved",
  "citations": [
    {
      "score": 0.88,
      "label": "s. 50",
      "statute_title": "Occupational Health and Safety Act"
    },
    {
      "score": 0.74,
      "label": "s. 74.12",
      "statute_title": "Employment Standards Act, 2000"
    }
  ]
}

Request

curl -X POST $API/v1/validate-case-citation \
  -H "Authorization: Bearer $MAPLEJURIS_KEY" \
  -d '{"query": "R. v. Jordan, 2016 SCC 27, at para 46"}'

200 · application/json

{
  "results": [{
    "response": {
      "valid": true,
      "status": "resolved",
      "case": {
        "title": "R. v. Jordan",
        "neutral_citation": "2016 SCC 27",
        "slug": "ca/case/2016-scc-27"
      },
      "pinpoint": { "paragraph_number": "46" },
      "authority": {
        "status": "positively_treated",
        "negative_events": 0
      }
    }
  }]
}

Request

curl -X POST $API/v1/token \
  -H "X-API-Key: $MAPLEJURIS_KEY"

curl $API/v1/usage \
  -H "Authorization: Bearer $TOKEN"

200 · application/json

{
  "access_token": "eyJhbGciOiJIUzI1NiIs...",
  "token_type": "Bearer",
  "expires_in": 86400,
  "plan": "non_commercial_free"
}

{
  "plan": "non_commercial_free",
  "limit": 1000,
  "used": 137,
  "remaining": 863,
  "resets_at": "2026-09-01T00:00:00Z"
}

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