int-bling

Bling ERP Skill

Integration with Bling ERP via REST API v3 (OAuth2 Bearer).

When to use

• List or create products, services, or kits in Bling
• Create or query sales orders
• Manage contacts (customers/suppliers)
• Issue or list fiscal invoices (NF-e)
• Check or update stock levels

Setup

This skill uses a Python client (scripts/bling_client.py) that handles OAuth2 Bearer auth with automatic refresh on 401. You do OAuth once via the CLI, then the skill refreshes tokens transparently forever.

One-time OAuth setup

1. Create an app at https://developer.bling.com.br → "Meus Apps"
2. Set the app's redirect URI to: http://localhost:8787/callback
3. Copy the Client ID and Client Secret into .env:

   BLING_CLIENT_ID=...
   BLING_CLIENT_SECRET=...
   

4. Run the login helper:

   make bling-auth
   

   This opens your browser, captures the authorization code via a local callback server, exchanges it for access_token + refresh_token, and persists both to .env.

After this step, .env contains:

BLING_CLIENT_ID=...
BLING_CLIENT_SECRET=...
BLING_ACCESS_TOKEN=...
BLING_REFRESH_TOKEN=...

How the auto-refresh works

scripts/bling_client.py is the single entry point for all API calls. On any HTTP 401, it:

1. Exchanges BLING_REFRESH_TOKEN for a new access_token + refresh_token at https://www.bling.com.br/Api/v3/oauth/token (Basic auth with Client ID/Secret)
2. Persists both back to .env and os.environ
3. Retries the original request once

Bling rotates the refresh token on every refresh, so always use this client — never call the API with raw curl unless you're debugging, otherwise you risk the .env tokens going stale.

Calling the client

python3 .claude/skills/int-bling/scripts/bling_client.py GET /produtos --params page=1 limit=50
python3 .claude/skills/int-bling/scripts/bling_client.py POST /contatos --body '{"nome":"Acme","tipo":"J","numeroDocumento":"12345678000100"}'
python3 .claude/skills/int-bling/scripts/bling_client.py PUT /produtos/123 --body '{"preco":99.90}'

The client prints the JSON response to stdout and logs errors to stderr.

---

Base URL

https://www.bling.com.br/Api/v3

---

Products

List products

curl -s -X GET \
  "https://www.bling.com.br/Api/v3/produtos?pagina=1&limite=100" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}"

Query params:

Create product

curl -s -X POST \
  "https://www.bling.com.br/Api/v3/produtos" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}" \
  -H "Content-Type: application/json" \
  -d '{
    "nome": "Widget Pro",
    "codigo": "WGT-001",
    "preco": 99.90,
    "precoCusto": 45.00,
    "tipo": "P",
    "formato": "S",
    "situacao": "A",
    "unidade": "UN"
  }'

Body fields:

---

Sales Orders

List orders

curl -s -X GET \
  "https://www.bling.com.br/Api/v3/pedidos/vendas?pagina=1&limite=100&dataInicial=2026-01-01&dataFinal=2026-04-10" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}"

Query params:

Create order

curl -s -X POST \
  "https://www.bling.com.br/Api/v3/pedidos/vendas" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}" \
  -H "Content-Type: application/json" \
  -d '{
    "contato": { "id": 123456 },
    "data": "2026-04-10",
    "observacoes": "Test order",
    "itens": [
      {
        "produto": { "id": 789 },
        "quantidade": 2,
        "valor": 99.90,
        "desconto": 0
      }
    ]
  }'

Body fields:

---

Contacts

List contacts

curl -s -X GET \
  "https://www.bling.com.br/Api/v3/contatos?pagina=1&limite=100&tipoPessoa=J" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}"

Query params:

Create contact

curl -s -X POST \
  "https://www.bling.com.br/Api/v3/contatos" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}" \
  -H "Content-Type: application/json" \
  -d '{
    "nome": "Empresa Exemplo LTDA",
    "tipo": "J",
    "numeroDocumento": "12345678000199",
    "email": "contato@empresa.com",
    "telefone": "31999990000"
  }'

Body fields:

---

Fiscal Invoices (NF-e)

List invoices

curl -s -X GET \
  "https://www.bling.com.br/Api/v3/nfe?pagina=1&limite=100" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}"

Query params:

Create invoice (from order)

curl -s -X POST \
  "https://www.bling.com.br/Api/v3/nfe" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}" \
  -H "Content-Type: application/json" \
  -d '{
    "pedidoVendaId": 456,
    "tipo": 1,
    "naturezaOperacao": "Venda de mercadoria"
  }'

Body fields:

---

Stock

Get stock for a product

curl -s -X GET \
  "https://www.bling.com.br/Api/v3/estoques/saldos?idsProdutos[]=789" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}"

Update stock

curl -s -X POST \
  "https://www.bling.com.br/Api/v3/estoques" \
  -H "Authorization: Bearer ${BLING_ACCESS_TOKEN}" \
  -H "Content-Type: application/json" \
  -d '{
    "produto": { "id": 789 },
    "deposito": { "id": 1 },
    "operacao": "E",
    "quantidade": 50,
    "observacoes": "Stock received from supplier"
  }'

Body fields:

---

Auth Model

• Type: OAuth2 Bearer Token
• Header: Authorization: Bearer <token>
• Token lifetime: short-lived; must be refreshed using the OAuth2 refresh token flow
• Scopes: defined per app in the Bling developer portal

Pagination

All list endpoints use:

• pagina — page number (1-indexed)
• limite — items per page (default 100, max 100)

Date filters use YYYY-MM-DD format.

Rate Limits

Bling API v3 does not publish a hard rate limit publicly. Observed safe throughput is ~10 requests/second. Back off on HTTP 429 responses. For detailed limits, see https://developer.bling.com.br.

Notes

• This skill is based on the MCP implementation at workspace/projects/mcp-dev-brasil/packages/erp/bling/src/index.ts (mcp-dev-brasil project)
• For advanced endpoints not listed here (product variations, fiscal settings, categories, etc.), consult the official docs at https://developer.bling.com.br
• The OAuth2 token management (refresh flow) is not automated by this skill — ensure BLING_ACCESS_TOKEN is fresh before making calls