---
title: "Sisbén API"
description: "A person's Sisbén IV registration, with its official group and subgroup.\n\n- **Base URL:** `https://api.getarbol.com/v1/sisben`\n- **Authentication:** an API key or an OAuth access token, as `Authorization: Bearer <token>`. [Get an API key](/en/developers/authentication/).\n- **Before you start:** Sisbén is included with Arbol: your organization's Owner turns it on in **Integrations** in Arbol Account ([how](/en/account/colombian-registries/)), or turn it on with [`account.registryInstallations.update`](/api/account/registry-installations/update/).\n- **SDKs and tools:** [TypeScript](/en/developers/sdks/typescript/) (`arbol.sisben`), [Rust](/en/developers/sdks/rust/), the [CLI](/en/developers/cli/) and [MCP](/en/developers/mcp/). Every endpoint has a sample for each.\n- **OpenAPI:** [openapi.json](/api/sisben/openapi.json), to import into Postman or generate a client.\n\nTry it with [Look up a Sisbén classification](/api/sisben/classifications/lookup/):\n\n```bash\ncurl https://api.getarbol.com/v1/sisben/classifications/lookup \\\n  --request POST \\\n  --header \"Authorization: Bearer $ARBOL_API_KEY\" \\\n  --header \"Content-Type: application/json\" \\\n  --data '{\n  \"documentType\": \"CC\",\n  \"documentNumber\": \"<documentNumber>\"\n}'\n```"
---

> Documentation Index
> Fetch the complete documentation index at: https://docs.getarbol.com/llms.txt
> Use this file to discover all available pages before exploring further.

A person's Sisbén IV registration, with its official group and subgroup.

- **Base URL:** `https://api.getarbol.com/v1/sisben`
- **Authentication:** an API key or an OAuth access token, as `Authorization: Bearer <token>`. [Get an API key](/en/developers/authentication/).
- **Before you start:** Sisbén is included with Arbol: your organization's Owner turns it on in **Integrations** in Arbol Account ([how](/en/account/colombian-registries/)), or turn it on with [`account.registryInstallations.update`](/api/account/registry-installations/update/).
- **SDKs and tools:** [TypeScript](/en/developers/sdks/typescript/) (`arbol.sisben`), [Rust](/en/developers/sdks/rust/), the [CLI](/en/developers/cli/) and [MCP](/en/developers/mcp/). Every endpoint has a sample for each.
- **OpenAPI:** [openapi.json](/api/sisben/openapi.json), to import into Postman or generate a client.

Try it with [Look up a Sisbén classification](/api/sisben/classifications/lookup/):

```bash
curl https://api.getarbol.com/v1/sisben/classifications/lookup \
  --request POST \
  --header "Authorization: Bearer $ARBOL_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
  "documentType": "CC",
  "documentNumber": "<documentNumber>"
}'
```

Version: 1.20261104.21009

## Servers

- `https://api.getarbol.com`

## Sections

- [Classifications](/api/sisben/tags/classifications/)


Source: https://docs.getarbol.com/api/sisben/index.md