FullEnrich · Rate Limits

Fullenrich Rate Limits

FullEnrich applies one account-wide limit of 60 API calls per minute across ALL endpoints — Enrich, Reverse Email Lookup and Search alike. Bulk endpoints accept up to 100 contacts per call, so the effective throughput is 6,000 contacts per minute. Each workspace additionally has a queue of 100 concurrent enrichments and 100 concurrent reverse email lookups; the Search API is synchronous and does not use a queue. Exceeding the limit returns HTTP 429.

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

It captures 4 rate-limit definitions, measuring requests, contacts, and jobs.

The profile also includes 4 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include B2B Data, Contact Enrichment, Waterfall Enrichment, Rate Limiting, and Quotas.

4 Limits Throttle: 429
B2B DataContact EnrichmentWaterfall EnrichmentRate LimitingQuotasThrottling

Limits

API Calls Per Minute account
requests · minute
60
One shared budget across every endpoint — polling for results spends the same budget as submitting work.
Contacts Per Bulk Request request
contacts
100
Each bulk enrichment or reverse lookup request may carry up to 100 contacts.
Contacts Per Minute (effective) account
contacts · minute
6000
60 requests/minute times 100 contacts/request.
Concurrent Queue Size workspace
jobs
100
Default workspace queue of 100 concurrent enrichments AND 100 concurrent reverse email lookups (tracked separately). The Search API is synchronous and bypasses the queue entirely.

Policies

Asynchronous Processing
POST returns an enrichment_id immediately; results arrive by webhook or are retrieved with GET /contact/enrich/bulk/{enrichment_id}. Typical processing is 30-90 seconds per contact.
Prefer Webhooks Over Polling
Webhooks are the documented recommendation. Polling consumes the same 60/min budget; the docs say never poll more than once every 5-10 minutes and never every few seconds.
Backoff Strategy
On 429, back off with exponential backoff and jitter. Because no Retry-After is returned, the client must choose its own interval.
Partner Uplift
Technology partners can request a higher rate limit and a larger parallel queue by contacting FullEnrich; custom rate limits and a priority queue are an Enterprise plan feature.

Sources

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

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