# Cosuno

**Canonical:** https://apis.io/providers/cosuno/  
**Website:** https://www.cosuno.com/en  
**APIs profiled:** 1

Cosuno is an AI‑based tendering platform for the construction industry in Germany, Austria and Switzerland. It connects clients and subcontractors, offering over 4,000 private/commercial tenders per month from 600+ clients, helping contractors win jobs with AI‑assisted bid creation and delivering average cost savings of 5‑7%.

## Kin Score — 34.9 / 100 (thin)

Scored 2026-11-06 under rubric 0.27.0. Trend: flat (-2.4 from 37.3).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 66.5 |
| Contract Governance | 19.7 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 18.5 |
| Access Clarity | 5.3 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 17.3 (matched via fallback).

## Agent readiness — 31.8 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | no |
| Operation Distinctiveness | distinct |
| MCP Tool Quality | na |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (17)

- **Cosuno Awarded Bids API** — The Awarded Bids API from Cosuno — 1 operation(s) for awarded bids.
- **Cosuno Bid Package Custom Fields API** — The Bid Package Custom Fields API from Cosuno — 2 operation(s) for bid package custom fields.
- **Cosuno Bid Packages API** — The Bid Packages API from Cosuno — 14 operation(s) for bid packages.
- **Cosuno Bid Requests API** — The Bid Requests API from Cosuno — 10 operation(s) for bid requests.
- **Cosuno Bids API** — The Bids API from Cosuno — 9 operation(s) for bids.
- **Cosuno Company API** — The Company API from Cosuno — 7 operation(s) for company.
- **Cosuno Current User API** — The Current User API from Cosuno — 1 operation(s) for current user.
- **Cosuno Offices API** — The Offices API from Cosuno — 2 operation(s) for offices.
- **Cosuno Project Costs API** — The Project Costs API from Cosuno — 2 operation(s) for project costs.
- **Cosuno Project Custom Fields API** — The Project Custom Fields API from Cosuno — 2 operation(s) for project custom fields.
- **Cosuno Projects API** — The Projects API from Cosuno — 13 operation(s) for projects.
- **Cosuno Subcontractor Custom Fields API** — The Subcontractor Custom Fields API from Cosuno — 2 operation(s) for subcontractor custom fields.
- **Cosuno Subcontractor Reviews API** — The Subcontractor Reviews API from Cosuno — 2 operation(s) for subcontractor reviews.
- **Cosuno Subcontractors API** — The Subcontractors API from Cosuno — 4 operation(s) for subcontractors.
- **Cosuno Users API** — The Users API from Cosuno — 3 operation(s) for users.
- **Cosuno Webhooks API** — The Webhooks API from Cosuno — 2 operation(s) for webhooks.
- **Cosuno Work Categories API** — The Work Categories API from Cosuno — 1 operation(s) for work categories.

## Agentic access (1)

- **Cosuno Agentic Access** — 107 operations · 60 acting

## Security (2)

- **Cosuno Authentication** — http · 1 scheme
- **Cosuno Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Construction, Marketplace, Artificial Intelligence, Tendering, Germany

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/cosuno/). Scores are computed from the provider's own public artifacts under a published rubric.