# Delivr.ai, pay as you go, Agency, POST /api/v1/contact/query, from the 1st result a month: Reverse email lookup API

> Resolve a batch of email addresses to enriched contact records, the same identity data as GET /api/v1/lookup, but up to 1000 emails per call.

Delivr.ai's reverse email lookup API on its Agency plan. It costs $10.00 per 1,000 people. It returns 1 of the 13 key fields we check: Experience.
We haven't run Delivr.ai through [our reverse email lookup API benchmark](https://datacircle.dev/best-reverse-email-lookup-api.txt) yet.
Half of the 396 plans we rank by price cost $24.875 per 1,000 people or less. This plan costs less per 1,000 people than 73% of the 396 plans.
[Minerva's $400 monthly plan](https://datacircle.dev/reverse-email-lookup-apis/minerva/400-monthly/llms.txt) costs the least per 1,000 people. Minerva's reverse email lookup API costs nothing beyond the plan price.
[Village's $25 pack (Reverse Lookup by Email, cached only)](https://datacircle.dev/reverse-email-lookup-apis/village/25-pack-1000-credits-post-v2-people-enrich-by-email-reverse-lookup-by-email-cached-only/llms.txt) covers any number of people. Village's $25 pack costs less up front than Minerva's $400 monthly plan.
[GetProspect](https://datacircle.dev/reverse-email-lookup-apis/getprospect/399-monthly-growth-50k-post-v2-people-enrich/llms.txt), [Village](https://datacircle.dev/reverse-email-lookup-apis/village/1-monthly/llms.txt) and [treg](https://datacircle.dev/reverse-email-lookup-apis/treg/top-up-from-200/llms.txt) are the best reverse email lookup API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/pay-as-you-go-agency-post-api-v1-contact-query-from-the-1st-result-a-month
- [Reverse email lookup API: 30+ providers compared](https://datacircle.dev/best-reverse-email-lookup-api.txt)
- Get it: https://www.delivr.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- Request: `POST https://api.delivr.ai/api/v1/contact/query`
- API key: with the plan, on https://www.delivr.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- Its API docs: https://docs.delivr.ai/reference/querycontacts?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- Sold by: Delivr.ai (https://www.delivr.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing)
- Checked: 2026-11-04

## In the answer

- Completeness: 8%
- Experience: ✓

## Price

- $ per 1,000 people: $10.00
- Per: result
- Billing: pay as you go

## Aggregators

- Aggregators: none

## Charges

- Also pays for: from the same budget: Resolve identity · Resolve identities in bulk · Download audience files

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Resolve a batch of email addresses to enriched contact records, the same identity data as GET /api/v1/lookup, but up to 1000 emails per call.

## Data

- Freshness: stored
- Keep data: Purchased Records survive: Customer may retain and continue to use Purchased Records on a perpetual basis for Internal Business Use, subject to continuing compliance with the restrictions and suppression obligations above [...] Customer will not incorporate a Provider Data record into new Embedded Output deliveries where more than the Data Freshness Period stated in the Data Rights Tier selections (or ninety (90) days, if none is stated) has elapsed since the record was last returned through the Cloud Service, unless Customer first re-queries or refreshes the record through the Cloud Service.
- Use data: Under Tier 1, Provider grants Customer the right during the Subscription Period to access, use, and reproduce Provider Data for Internal Business Use. [...] Customer may not otherwise distribute, resell, sublicense, or make Provider Data available to any third party. [...] Customer will not, and will not permit anyone else to: use Provider Data to create, train, augment, benchmark, validate, or improve any identity graph, identity resolution capability, contact database, intent model, or data product that competes with the Cloud Service, use Provider Data to train or fine-tune any machine learning model, except that Customer may train and fine-tune models on Purchased Records provided the restriction above continues to apply and the model does not reproduce, expose, or make Provider Data available to any third party, reverse engineer, decompile, or attempt to derive the resolution logic, matching methodology, model weights, or source composition of the Cloud Service or Provider Data, disclose, sell, license, or otherwise make Provider Data available to any Competing Data Provider, or list Provider Data on any data exchange, marketplace, or clean room, without Provider's prior written consent, attempt to re-identify any de-identified or pseudonymized data, or combine Provider Data with other data for the purpose of re-identification, use Provider Data to determine eligibility for credit, insurance, employment, housing, or any other purpose regulated by the Fair Credit Reporting Act or comparable law, or in any manner that discriminates on the basis of a protected characteristic, use Provider Data in violation of applicable privacy, data-protection, marketing, advertising, telemarketing, email, or data-broker laws, or remove, alter, or obscure any watermark, seed record, provenance marker, or usage-tracking mechanism embedded in Provider Data.

## Plan

- Pay: monthly
- You get: from the 1st result a month

## Rate limit

- Per second: 10
- Batch: 1,000

## Speed

- Answer: in the call

## The call

- You send: emails. Optional: page_size, cursor, filter, dry_run
- Method: POST
- Path: /api/v1/contact/query

## About the plan

- Plan: Agency
- Who can get it: agencies

## The 18 fields the plan's answer can hold

hashed email, first name, last name, job title, seniority level, department, company name, company domain, LinkedIn URL, current business email, business emails, is business email, personal email, mobile phone, direct phone, postal address, billable record count, next page cursor

## Delivr.ai's plans (7)

- [Delivr.ai, pay as you go, Agency, POST /api/v1/contact/query, from the 1st result a month](https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/pay-as-you-go-agency-post-api-v1-contact-query-from-the-1st-result-a-month/llms.txt): $10.00 per 1,000, 8% complete, stored
- [Delivr.ai, pay as you go, Growth](https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/pay-as-you-go-growth/llms.txt): $10.00 per 1,000, 8% complete, stored
- [Delivr.ai, pay as you go, Agency, POST /api/v1/contact/query, from the 10,001st result a month](https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/pay-as-you-go-agency-post-api-v1-contact-query-from-the-10001st-result-a-month/llms.txt): $5.00 per 1,000, 8% complete, stored
- [Delivr.ai, pay as you go, Strategic](https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/pay-as-you-go-strategic/llms.txt): $5.00 per 1,000, 8% complete, stored
- [Delivr.ai, pay as you go, Agency, POST /api/v1/contact/query, from the 50,001st result a month](https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/pay-as-you-go-agency-post-api-v1-contact-query-from-the-50001st-result-a-month/llms.txt): $2.50 per 1,000, 8% complete, stored
- [Delivr.ai, pay as you go, Scale](https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/pay-as-you-go-scale/llms.txt): $2.50 per 1,000, 8% complete, stored
- [Delivr.ai, contact us](https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/contact-us/llms.txt): 8% complete, stored

## Delivr.ai's calls for this API (1)

- `POST /api/v1/contact/query`: [Delivr.ai, pay as you go, Agency, POST /api/v1/contact/query, from the 1st result a month](https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/pay-as-you-go-agency-post-api-v1-contact-query-from-the-1st-result-a-month/llms.txt)

## Delivr.ai's APIs (3)

- [Delivr.ai: reverse email lookup API pricing, 7 plans](https://datacircle.dev/reverse-email-lookup-apis/delivr-ai/pay-as-you-go-agency-post-api-v1-contact-query-from-the-1st-result-a-month/llms.txt)
- [Delivr.ai: email finder API pricing, 7 plans, POST /api/v1/lookup/batch](https://datacircle.dev/find-email-apis/delivr-ai/pay-as-you-go-agency-post-api-v1-lookup-batch-from-the-1st-result-a-month/llms.txt)
- [Delivr.ai: email finder API pricing, 7 plans, GET /api/v1/lookup](https://datacircle.dev/find-email-apis/delivr-ai/pay-as-you-go-agency-get-api-v1-lookup-from-the-1st-result-a-month/llms.txt)
- [Delivr.ai: people enrichment API pricing, 7 plans, POST /api/v1/lookup/batch](https://datacircle.dev/person-enrichment-apis/delivr-ai/pay-as-you-go-agency-post-api-v1-lookup-batch-from-the-1st-result-a-month/llms.txt)
- [Delivr.ai: people enrichment API pricing, 7 plans, GET /api/v1/lookup](https://datacircle.dev/person-enrichment-apis/delivr-ai/pay-as-you-go-agency-get-api-v1-lookup-from-the-1st-result-a-month/llms.txt)

## Delivr.ai: reverse email lookup API alternatives

- [Argorant, $249 monthly](https://datacircle.dev/reverse-email-lookup-apis/argorant/249-monthly/llms.txt): $9.96 per 1,000, 15% complete, stored
- [Pipecorn, $5,399 monthly](https://datacircle.dev/reverse-email-lookup-apis/pipecorn/5399-monthly/llms.txt): $9.998 per 1,000, 54% complete, stored
- [Context.dev, $500 monthly](https://datacircle.dev/reverse-email-lookup-apis/context-dev/500-monthly/llms.txt): $10.00 per 1,000, 46% complete, stored
- [Bytemine, $1,000 monthly](https://datacircle.dev/reverse-email-lookup-apis/bytemine/1000-monthly/llms.txt): $10.00 per 1,000, 31% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-04.

- https://docs.delivr.ai/docs/rate-limits-and-metering?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://docs.delivr.ai/reference/querycontacts?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://www.delivr.ai/api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://www.delivr.ai/legal/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://www.delivr.ai/legal/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing
- https://www.delivr.ai/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=reverse-email-lookup-api-pricing