# B2B data enrichment API tools in 2026: any field, from 5¢ a row Compared on Nov 12, 2026. The page: https://specstream.ai/b2b-data-enrichment-api A B2B data enrichment API takes a domain, an email or a name and returns fields from its vendor's data or the web. ZoomInfo sells consumption credits, and Vendr reports a median of $33,500 a year. Parallel charges $5 to $2,400 per 1,000 rows. SpecStream is the live web data engine. Send your CRM export or describe the accounts, name any field, and Deep Search fills each row at 5¢, 15¢ or $1, with a person's email for 5¢ more. Source URL and read time on every value. [Get an API key](https://specstream.ai/signup?src=alternatives-b2b-data-enrichment-api&utm_source=alternatives-md&utm_campaign=b2b-data-enrichment-api&returnTo=%2Fworkspace%2Fagents%3Ftab%3Dkeys) New accounts get $10 of credit, no card. ## B2B data enrichment API tools side by side | | SpecStream | ZoomInfo | HubSpot (Clearbit) | Cognism | Parallel | Abstract API | |---|---|---|---|---|---|---| | What you send | A list of up to 20,000 rows from a CSV, Excel, Google Sheets or Airtable, each matched by its website, a page link or an ID such as a company number. Or a request in plain words that finds the records as well | A partial record: an email address, a company domain or a LinkedIn URL | Records in your HubSpot CRM: first name, last name and work email for a contact, the company domain for a company | Filters on `POST /persons/filter` and `POST /companies/filter`, then the contacts to reveal | One task run per row, with the output fields you define | A domain or an email | | What comes back | The fields you name, standard or not, such as the tools a site runs or whether a company publishes a sustainability report. Facts from many sites joined into one record. Source URL and read time on every value | Verified data, firmographics, technographics, contact details and buying signals | Business information, written into the matching contact and company properties | Contacts, with phone verified mobile numbers | The fields you defined, with citations, reasoning and confidence levels | Company size, industry and locations | | Where its data comes from | The live web at the time of your request, and the public databases at [specstream.ai/data](https://specstream.ai/data?utm_source=alternatives&utm_campaign=b2b-data-enrichment-api), such as 54,118 operating companies that filed a Form D since January 3, 2023 | ZoomInfo's own data, with 500M contacts it says 300+ human researchers verify | HubSpot's commercial dataset, third party providers and publicly available information from across the internet | Its own data, which it calls verified and compliance first | Web search, and data partners you add | Its company data, updated weekly, covering companies in 175+ countries | | The unit you pay for | A delivered row: 5¢, 15¢ or $1 by how much the row needs, plus 5¢ for a person's email and 15¢ for a phone. Duplicates and rows you already own are not charged | Credits, priced by the depth of information a customer requires | Part of a HubSpot subscription. Data enrichment does not consume HubSpot credits | 1 credit for each contact revealed, and a search token for each row a filter call returns | A completed task run, whether it fills 1 field or 20. Failed runs are not billed | A request | | Published price | 5¢, 15¢ or $1 a row, the same on every plan. Plans at $19, $99 and $499 a month turn their whole price into credit. The most a run can cost is quoted before it starts | Free to start, then consumption credits. Vendr reports a median of $33,500 a year, from 1,581 purchases | Sold inside HubSpot. clearbit.com is headed "Clearbit has joined HubSpot!" | A personalised quote. CRM enrichment is priced by subscription structure, usage and delivery requirements | Per 1,000 runs: $5 on lite, $10 on base, $25 on core, $100 on pro, up to $2,400 on ultra8x | Free for 100 requests. Standard is $99 a month for 60,000 requests | | Where the data goes | Google Sheets, Excel, Airtable, Notion, monday.com, HubSpot, Salesforce, Pipedrive, Attio, Slack, Teams, Zapier, Make, n8n and signed webhooks. MCP server, REST API, Python and TypeScript SDKs, a CLI and A2A | Native connectors for Salesforce, HubSpot and Dynamics 365, API calls with webhooks, and middleware | The matching properties in your HubSpot CRM | CRM enrichment, sold on its own or as an add on to Cognism | API responses, and Google Sheets through its PARALLEL_QUERY function | API responses at 3 requests a second on Standard, and CSV upload for bulk queries | ## Why B2B teams choose SpecStream for enrichment ### Your CRM export, filled where it is empty Bring the accounts you have, from a CSV, Excel, Google Sheets or Airtable, up to 20,000 rows a list. Each row is looked up by its website, a page link or an ID, and SpecStream fills only the cells that are empty: website, phone, owner, email, the tools a site runs, or anything you can describe. Values you imported stay labeled as yours and are never overwritten. A linked sheet is checked every day for new rows, so enrichment keeps running as the list grows. Send the filled rows back to HubSpot, Salesforce, Pipedrive or Attio, matched to the records already there. More on [enrichment](https://specstream.ai/for/enrichment?utm_source=alternatives&utm_campaign=b2b-data-enrichment-api). ### Account traits no vendor sells, checked on each account's own pages A vendor's API returns the fields its data model has. SpecStream takes conditions in your own words, such as "sells to hospitals" or "lists SOC 2 on its site", and checks each one against the account's own words and numbers. A row that fails a condition is not delivered and not billed, and `get_find_decisions` returns each condition's answer with its reason, the value, the source and the time it was read. ### A price per row, quoted before anything runs A row with up to 5 facts costs 5¢, a person's email adds 5¢ and a phone 15¢. A company row with a work email is 10¢, so the $33,500 Vendr reports as the median ZoomInfo contract would pay for 335,000 of those rows. There are no seats and no annual contract, and duplicates and rows you already own are not charged. Every request gets a quote of the most it can cost, good for 30 minutes. Nothing runs until that maximum is approved, and what the run does not use goes back to your balance. Each API key carries its own limits: total, per run and monthly. ### Measured search and records already held The same key runs the Search API, the most accurate web search API in the world: 97.9 F-score on all 1,000 official SimpleQA Verified questions (978 correct), and 64.0 item F1 and 43.4 row F1 on all 200 official WideSearch tasks. The Extract API scores 0.908 F1 on WCXB. The scores and the method are on the [benchmarks](https://specstream.ai/benchmarks?utm_source=alternatives&utm_campaign=b2b-data-enrichment-api) page. Funding rounds, new executives and layoffs are at [specstream.ai/signals](https://specstream.ai/signals?utm_source=alternatives&utm_campaign=b2b-data-enrichment-api), and a saved request reruns hourly to yearly, labeling each row changed, unchanged or no longer matching. An unchanged row costs 1¢ to recheck. ## Other enrichment API tools ### FullEnrich A contact enrichment API that uses credits only when it finds a result: 1 credit for a work email and 10 for a mobile phone, with Pro from $29 a month for 500 credits. SpecStream puts the account and the contact on one row, with any company fact you name, at 10¢ for a row with a work email. ### Clay A table tool that runs other vendors' data in waterfalls. Free comes with 100 data credits a month, and Launch is $167 a month. SpecStream returns the finished row from one request, with no provider to choose and no actions to count. ### Apollo A sales database whose API comes on custom plans. People enrichment costs 1 to 9 credits a person, and Vendr reports a median Apollo contract of $19,004 a year. On SpecStream a company row with a work email is 10¢ with no plan to buy, and the row can carry traits Apollo's filters do not list. See [Apollo alternatives](https://specstream.ai/alternatives/apollo?utm_source=alternatives&utm_campaign=b2b-data-enrichment-api). ## How to start, and how to test it on your own accounts Import your CRM export or a sheet, or write the accounts you want in plain words. Sign up and you get $10 of credit, no card. At 5¢ a row, that is up to 200 rows. Test before you pay. This call spends nothing: the `402` reply shows how SpecStream read the request, the columns and the most it can cost. ``` curl -i https://api.specstream.ai/v1/agent/lists \ -H "Content-Type: application/json" \ -d '{"request": "B2B software companies in the United States with 50 to 500 employees that sell to hospitals, with the website, the employee count, the head of sales and a work email", "count": 25}' ``` Then read one account's own page. The Extract API returns the page text and every email address the page carries, also those only its markup shows, each with where it was found. One page costs $0.0008. ``` curl https://api.specstream.ai/v1/extract \ -H "Authorization: Bearer $SPECSTREAM_API_KEY" \ -H "Content-Type: application/json" \ -d '{"urls": ["https://www.example.com/about"], "format": "text"}' ``` Run both on 25 accounts you know well and compare each filled value and its source page with your CRM. Your agent uses the MCP server at `https://api.specstream.ai/mcp` and your team uses the workspace, from the same balance. Prices are on the [pricing](https://specstream.ai/pricing?utm_source=alternatives&utm_campaign=b2b-data-enrichment-api) page. ## Frequently asked questions ### What is a B2B data enrichment API? A B2B data enrichment API adds company and contact fields, such as website, size, industry, a person's email or phone, to the accounts and leads you already hold. SpecStream does it at 5¢, 15¢ or $1 a delivered row from the live web, with a person's email for 5¢ more and any field you name. Source URL and read time on every value. ### What are the best enrichment API tools for B2B teams in 2026? SpecStream, at 5¢, 15¢ or $1 a delivered row. You send your CRM export or describe the accounts, name the fields and the conditions, approve the most the run can cost, and get rows in HubSpot, Salesforce, a sheet or your agent, kept up to date by a saved request. ### How much does ZoomInfo's enrichment API cost? ZoomInfo publishes no price list. It says it is free to start with consumption credits based on usage, and Vendr reports a median contract of $33,500 a year from 1,581 purchases. On SpecStream a company row with a work email costs 10¢ with no contract. ### Can I enrich my CRM without overwriting what is there? Yes. SpecStream fills only the empty cells, and values you imported stay labeled as yours and are never overwritten. Importing is free, and filled rows go back to HubSpot, Salesforce, Pipedrive or Attio matched to the records already there. ### What happened to Clearbit? On Nov 12, 2026, clearbit.com is headed "Clearbit has joined HubSpot!", and enrichment runs inside HubSpot on contact names, work emails and company domains. SpecStream enriches the same accounts in any CRM or sheet at 5¢, 15¢ or $1 a row. ### Does SpecStream have an API and an MCP server? Yes. Deep Search returns rows at 5¢, 15¢ or $1, the Search API costs $5 per 1,000 searches of up to 10 results, and the Extract API costs $0.80 per 1,000 pages. All three run on one key through the REST API, the Python and TypeScript SDKs, the CLI, A2A and the MCP server at `https://api.specstream.ai/mcp`. ## Sources SpecStream wrote this page. Each rival figure comes from that company's own page, or from Vendr where the cell names it. - [SpecStream pricing](https://specstream.ai/pricing), read Nov 12, 2026 - [SpecStream for agents](https://specstream.ai/agents.md), read Nov 12, 2026 - [SpecStream benchmarks](https://specstream.ai/benchmarks), read Nov 12, 2026 - [SpecStream Form D filings](https://specstream.ai/data/form-d), read Nov 12, 2026 - [SpecStream signals](https://specstream.ai/signals), read Nov 12, 2026 - [ZoomInfo Enrich API](https://pipeline.zoominfo.com/sales/data-enrichment-api), read Nov 12, 2026 - [ZoomInfo pricing](https://www.zoominfo.com/pricing), read Nov 12, 2026 - [ZoomInfo on Vendr](https://www.vendr.com/marketplace/zoominfo), read Nov 12, 2026 - [HubSpot data enrichment](https://knowledge.hubspot.com/records/get-started-with-data-enrichment), read Nov 12, 2026 - [Clearbit](https://clearbit.com/), read Nov 12, 2026 - [Cognism pricing](https://www.cognism.com/pricing), read Nov 12, 2026 - [Cognism credits and search tokens](https://docs.cognism.com/docs/credits-and-search-tokens.md), read Nov 12, 2026 - [Parallel pricing](https://docs.parallel.ai/getting-started/pricing.md), read Nov 12, 2026 - [Parallel docs index](https://docs.parallel.ai/llms.txt), read Nov 12, 2026 - [Parallel MCP quickstart](https://docs.parallel.ai/integrations/mcp/quickstart.md), read Nov 12, 2026 - [Abstract Company Enrichment API](https://www.abstractapi.com/api/company-enrichment-api), read Nov 12, 2026 - [FullEnrich pricing](https://fullenrich.com/pricing), read Nov 12, 2026 - [FullEnrich credits](https://docs.fullenrich.com/api/v2/general/credit.md), read Nov 12, 2026 - [Clay pricing](https://www.clay.com/pricing), read Nov 12, 2026 - [Apollo API pricing and credits](https://docs.apollo.io/docs/api-pricing.md), read Nov 12, 2026 - [Apollo pricing](https://www.apollo.io/pricing), read Nov 12, 2026 - [Apollo on Vendr](https://www.vendr.com/marketplace/apollo-io), read Nov 12, 2026