# ColdState Knowledge API

**Canonical:** https://apis.io/apis/coldstate-ai/coldstate-ai-knowledge-api/  
**Provider:** ColdState — https://apis.io/providers/coldstate-ai/  
**Base URL:** https://cold-api.coldstate.ai  
**Documentation:** https://services.coldstate.ai/docs

ColdState Knowledge API is one of 8 APIs that [ColdState](https://apis.io/providers/coldstate-ai/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 4 JSON Schema definitions. Tagged areas include Knowledge. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a getting-started guide, and 4 JSON Schemas.

Global knowledge base: search, fetch, cite, verify, related, resolve

## Operations (12)

| Method | Path | Summary |
|---|---|---|
| POST | `/v1/search/global` | Search the global knowledge base |
| GET | `/v1/search/domains` | List knowledge domains with counts |
| GET | `/v1/knowledge/fetch` | Fetch an entry verbatim by stable id |
| GET | `/v1/knowledge/cite` | Canonical citation for an entry |
| POST | `/v1/knowledge/verify` | Verify a cited fact is unchanged |
| GET | `/v1/knowledge/snapshot` | Current knowledge-base snapshot |
| GET | `/v1/knowledge/related` | Related entries via the concept-cluster graph |
| GET | `/v1/knowledge/resolve` | Resolve a name/alias to a canonical entry |
| POST | `/v1/knowledge/batch` | Several queries against one snapshot |
| GET | `/v1/knowledge/stats` | Query coverage stats, or global KB stats |
| GET | `/v1/knowledge/capabilities` | Machine-readable service manifest |
| GET | `/v1/knowledge/isomorph` | Cross-domain structural analog of an entry |

## Machine-readable artifacts (8)

- **OpenAPI** — https://artifacts.apis.io/coldstate-ai/openapi/coldstate-ai-knowledge-api-openapi.yml
- **Documentation** — https://services.coldstate.ai/docs
- **GettingStarted** — https://services.coldstate.ai/docs/quickstart
- **LLMsTxt** — https://cold-api.coldstate.ai/llms.txt
- **JSONSchema** — https://artifacts.apis.io/coldstate-ai/json-schema/coldstate-ai-global-search-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/coldstate-ai/json-schema/coldstate-ai-resolve-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/coldstate-ai/json-schema/coldstate-ai-related-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/coldstate-ai/json-schema/coldstate-ai-citation-schema.json

## Other ColdState APIs (7)

- [ColdState Auth API](https://apis.io/apis/coldstate-ai/coldstate-ai-auth-api/)
- [ColdState Billing API](https://apis.io/apis/coldstate-ai/coldstate-ai-billing-api/)
- [ColdState Indexes API](https://apis.io/apis/coldstate-ai/coldstate-ai-indexes-api/)
- [ColdState MCP API](https://apis.io/apis/coldstate-ai/coldstate-ai-mcp-api/)
- [ColdState Meta API](https://apis.io/apis/coldstate-ai/coldstate-ai-meta-api/)
- [ColdState Search API](https://apis.io/apis/coldstate-ai/coldstate-ai-search-api/)
- [ColdState Usage API](https://apis.io/apis/coldstate-ai/coldstate-ai-usage-api/)

## Tags

Knowledge

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/coldstate-ai/coldstate-ai-knowledge-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/coldstate-ai/.