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Halliday Assets API

Asset information, discovery, and supported asset pairs

Halliday Assets API is one of 4 APIs that Halliday publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Assets. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and a getting-started guide.

This API exposes 3 operations across 3 paths, and defines 19 schemas. It is described by OpenAPI 3.2.0, at version 2.0.0.

Requests are made against a single base URL, https://v2.prod.halliday.xyz.

3 operations 3 paths 19 schemas 3 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.0.0
Base URL
https://v2.prod.halliday.xyz
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

Halliday Assets API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (API_KEY) (ApiKeyAuth). By default, every request must be authenticated.

Paths & Operations 3

Across 3 paths, the API surfaces 3 operations — 3 GET. Each is listed below with its method, path, parameters, and response codes.

Assets 3

Asset information, discovery, and supported asset pairs

GET
/assets
Get asset details
getAssets 1 param → 200400401403
GET
/assets/available-inputs
Get available input assets for a given output asset
getInputAssets 4 params → 200400401403
GET
/assets/available-outputs
Get available output assets for a given input asset
getOutputAssets 5 params → 200400401403

Schemas 19

The contract defines 19 schemas that model the data the API accepts and returns. The most detailed are TokenDetails (11 properties), AmountIssue (8 properties), AmountDownstreamIssue (8 properties), FiatDetails (6 properties). Each schema is shown below with its type and property counts.

Issue
ErrorResponse
object
Error response for known errors
1 property 1 required
ProviderIssue
object
2 properties 2 required
OwnerIssue
object
3 properties 3 required
AmountDownstreamIssue
object
8 properties 7 required
FundingIssue
object
3 properties 3 required
Fiat
string
Fiat currency code
TokenDetails
object
11 properties 5 required
Token
string
Token identifier in the format "chain:address"
AmountIssue
object
8 properties 7 required
Asset
string
Identifier in the token format ("chain:address") or fiat currency code ("USD")
GeolocationIssue
object
2 properties 2 required
OtherIssue
object
2 properties 2 required
AssetDetails
Limits
object
2 properties
FiatDetails
object
6 properties 4 required
UnknownIssue
object
2 properties 2 required
PayinMethodIssue
object
2 properties 2 required
Amount
string
A decimal amount string.

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

halliday-assets-api-openapi.yml Raw ↑

Other APIs Halliday publishes across the network.

Halliday Chains API
Halliday Payments API
Halliday Webhooks API
Where this information came from

This is an independent, third-party profile of Halliday Assets API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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