Handwrite IO · Rate Limits

Handwrite Io Rate Limits

Handwrite publishes one flat rate limit and returns the three X-RateLimit-* headers on every response. This supersedes an API Evangelist scaffold (method: generated, 2026-05-04) that invented free/professional/enterprise tiers with 10/100/1000 rpm — Handwrite has no such tiers, and the real limit is 60 requests per minute per API key regardless of spend.

Handwrite Io Rate Limits is the machine-readable rate-limit profile for Handwrite IO on the APIs.io network, conforming to the API Commons Rate Limits specification.

It captures 1 rate-limit definition, across the all tier, measuring requests_per_minute.

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

Tagged areas include Direct Mail, Handwritten, Marketing, Notes, and Rate Limiting.

1 Limits Throttle: 429 Quota: 429
Direct MailHandwrittenMarketingNotesRate Limiting

Limits

Default API key limit api-key
requests_per_minute · minute
60

Policies

Backoff Strategy
Not published by Handwrite. Because no Retry-After is returned, clients should read X-RateLimit-Reset (epoch seconds) and sleep until that instant, with jitter.
Burst allowance
No burst ceiling is published; the docs state a flat 60 requests per minute.
Tier-linked limits
None. Handwrite prices per mailed card, not per API call, and does not vary the rate limit by plan. See plans/handwrite-io-plans-pricing.yml.

Work with this as data

Every rate limit 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 rate limits

4 MCP tools reach this
  • 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.
  • 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 rate limit 
curl "https://apis.io/api/v1/rate-limits/handwrite-io-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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