# Lob.com US Autocompletions API **Canonical:** https://apis.io/apis/lobcom/lobcom-us-autocompletions-api/ **Provider:** Lob.com — https://apis.io/providers/lobcom/ **Base URL:** https://api.lob.com/v1 **Documentation:** https://docs.lob.com/ Lob.com US Autocompletions API is one of 32 APIs that [Lob.com](https://apis.io/providers/lobcom/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include U S Autocompletions. The published artifact set on APIs.io includes an OpenAPI specification. Given partial address information, this endpoint returns up to 10 address suggestions.
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## Autocompletion Test Env Your test API key does not autocomplete US addresses and is used to simulate behavior. With your test API key, requests with specific values for `address_prefix` return predetermined values. When `address_prefix` is set to: - `0 suggestions` - Returns no suggestions - `[PRIMARY NUMBER] s[uggestion]` - Returns a maximum of ten predefined suggested addresses. `[PRIMARY NUMBER]` does not have to be a valid primary number when sending a test request. Each additional letter in `suggestion` reduces the number of suggestions by one (e.g. `1 su` returns 9 suggested addresses). `[PRIMARY NUMBER]` does not affect the number of suggestions returned. City and state filters work as expected and filter the list of predetermined suggested addresses. See the `test` request & response examples under [Autocomplete Examples](#operation/autocompletion) within the "Autocomplete a partial address" section in US Autocompletions.
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## Machine-readable artifacts (1) - **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/lobcom/refs/heads/main/openapi/lobcom-us-autocompletions-api-openapi.yml ## Other Lob.com APIs (12) - [Lob.com Accounts API](https://apis.io/apis/lobcom/lobcom-accounts-api/) - [Lob.com Addresses API](https://apis.io/apis/lobcom/lobcom-addresses-api/) - [Lob.com Bank Accounts API](https://apis.io/apis/lobcom/lobcom-bank-accounts-api/) - [Lob.com Billing Groups API](https://apis.io/apis/lobcom/lobcom-billing-groups-api/) - [Lob.com Booklets API](https://apis.io/apis/lobcom/lobcom-booklets-api/) - [Lob.com Buckslip Orders API](https://apis.io/apis/lobcom/lobcom-buckslip-orders-api/) - [Lob.com Buckslips API](https://apis.io/apis/lobcom/lobcom-buckslips-api/) - [Lob.com Campaigns API](https://apis.io/apis/lobcom/lobcom-campaigns-api/) - [Lob.com Card Orders API](https://apis.io/apis/lobcom/lobcom-card-orders-api/) - [Lob.com Cards API](https://apis.io/apis/lobcom/lobcom-cards-api/) - [Lob.com Checks API](https://apis.io/apis/lobcom/lobcom-checks-api/) - [Lob.com Creatives API](https://apis.io/apis/lobcom/lobcom-creatives-api/) ## Tags U S Autocompletions --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/lobcom/lobcom-us-autocompletions-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/lobcom/.