OpenGov Co Attachment API

The coAttachment API from OpenGov — 4 operation(s) for coattachment.

Operations 4

POST /api/v1/po/entities/{entityId}/purchase-orders/{poId}/change-orders/{coId}/attachments/upload Initialize a CO-scoped general file upload #
POST /api/v1/po/entities/{entityId}/purchase-orders/{poId}/change-orders/{coId}/attachments/{attachmentId}/complete Complete a CO-scoped general file upload #
DELETE /api/v1/po/entities/{entityId}/purchase-orders/{poId}/change-orders/{coId}/attachments/{attachmentId} Delete a CO-scoped general attachment (soft-delete) #
POST /api/v1/po/entities/{entityId}/purchase-orders/{poId}/change-orders/{coId}/attachments/bulk-delete Bulk-delete orphaned CO-scoped general attachments #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/opengov-coattachment-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

opengov-coattachment-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: OpenGov Purchase Order Co Attachment API
  version: 1.0.0
  description: API for managing purchase orders, line items, splits, and vendors.
servers:
- url: https://api-purchase-order.procurement.opengov.com
  description: Production
- url: https://api-purchase-order.procurement.ogstaging.us
  description: Staging
- url: https://api-purchase-order.procurement.ogintegration.us
  description: Integration
security:
- platformApiKey: []
- platformBearerToken: []
tags:


# --- truncated at 32 KB (37 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/opengov/refs/heads/main/openapi/opengov-coattachment-api-openapi.yml