Highnote · Rate Limits

Highnote Rate Limits

Highnote applies per-account rate limiting to the single GraphQL endpoint to protect platform stability. The documentation describes rate limiting as a resilience consideration and recommends idempotency keys and retry-with-backoff, but does not publish specific numeric request-per-second or request-per-minute thresholds. Specific limits are not reconciled in this artifact.

Highnote Rate Limits is the machine-readable rate-limit profile for Highnote on the APIs.io network, in the API Commons Rate Limits shape.

It captures 2 rate-limit definitions, measuring requests.

An exhausted limit returns HTTP 429.

This profile was written by API Evangelist and has not been verified against a page the provider published; treat every limit as unconfirmed until a dated transcription replaces it.

The profile also includes 3 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Card Issuing, Embedded Finance, Fintech, Payments, and GraphQL.

2 Limits Exhausted: HTTP 429
Method: generated, dated 2026-06-20.
Written by API Evangelist on 2026-06-20 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
View Source
Card IssuingEmbedded FinanceFintechPaymentsGraphQLRate LimitingQuotasThrottling

Limits

GraphQL Requests account
requests
see provider documentation
Per-account rate limiting on the single GraphQL endpoint; exact thresholds not published.
Mutating Operations account
requests
see provider documentation
Use idempotency keys so retried mutations do not double-execute.

Policies

Idempotency
Supply an idempotency key on mutations so safe retries do not duplicate side effects.
Backoff Strategy
Implement exponential backoff with jitter and honor 429 responses / Retry-After.
Pagination
Use Relay cursor connections (first / after) to page large result sets rather than large single requests.

Sources

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

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Tools for rate limits

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  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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Call it yourself

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This rate limit 
curl "https://apis.io/api/v1/rate-limits/highnote-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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