--- title: "Close alternatives, by reason for leaving" description: "Close alternatives ranked by why teams actually switch, with verified pricing and the trade each one makes." url: https://frontal.so/gtm-apis/alternatives/close-alternatives updated: 2026-11-12 --- Alternatives · Verified 24 Oct 2026 # Close alternatives, sorted by *why you are leaving* Close is a CRM built around the phone. People leave it for reasons that have nothing to do with the phone. 4 replacements below, each one matched to a specific reason. Short answer Read the Close alternatives below knowing what you are giving up: none of the four CRMs picked here is built around a dialer the way Close is. If calling is why you bought it, stay, or keep Close for the reps and change the system of record behind it. If you are leaving for a free tier, published rate numbers or a wider suite, HubSpot is the strongest of the Close competitors here. Pipedrive is the cheapest paid pipeline among them at list price, and Attio and Salesforce cover the data model and the enterprise end. Prices and limits for every option below are read off the vendor's own page. These are the Close competitors that each answer a named problem. See the 4 alternatives [Read the Close review](https://frontal.so/gtm-apis/crm-apis/close-api-review) replacements.txt 4 picks hubspot **Free tier** pipedrive **$14/seat/mo** attio **$44/user/mo** salesforce **$125/seat/mo** Currently on $9/seat/mo annual Diagnose first ## The 3 reasons people actually leave If none of these is your situation, the honest answer is that you should probably stay, and the [Close API review](https://frontal.so/gtm-apis/crm-apis/close-api-review) covers what you already have. The 11 providers in the [CRM and sync APIs](https://frontal.so/gtm-apis/crm-apis) listing are where these replacements come from. ### 1 · The rate limits are a shape, not a number Close limits per endpoint group, per key and per organization, and the organization limit is three times the per-key one. The requests per second are left to the RateLimit header. You can write a correct client against that and you cannot size a backfill in advance, which is the planning question most integrations start with. ### 2 · The calling features climb the price list Solo is $19 a seat, or $9 billed annually, but the power dialer starts on Growth at $109, or $99 annually, and the predictive dialer is on Scale at $149. Call recording retention runs 30 days on the two cheaper plans and 90 on Growth, and recording with transcription is an add-on at $50 an organization plus $0.02 a minute. ### 3 · No free tier and no marketing side There is a trial and a 30-day money-back guarantee, and no plan you can leave running for nothing. Close is deliberately a sales CRM, with no forms, landing pages or marketing automation, so a company that wants one system for sales and marketing ends up paying for two. The alternatives ## 4 Close alternatives, and what each one fixes Ordered by how closely each one answers the reasons above, not by price. | Provider | Entry price | Unit cost | Free tier | Best for | | --- | --- | --- | --- | --- | | [Close](https://frontal.so/gtm-apis/crm-apis/close-api-review) | $9/seat/mo annual | Not sold by the unit | No free tier. Free trial, and $9 a month on Solo billed annually, for one user. | Baseline | | [HubSpot API](https://frontal.so/gtm-apis/crm-apis/hubspot-api-review) | Free tier | $0 free tier | Free CRM including API access | Best free CRM endpoint | | [Pipedrive](https://frontal.so/gtm-apis/crm-apis/pipedrive-api-review) | $14/seat/mo | Not sold by the unit | No free tier. 14-day trial, no card. | Best CRM API for small sales teams | | [Attio API](https://frontal.so/gtm-apis/crm-apis/attio-api-review) | $44/user/mo | Not sold by the unit | Free plan with full API access, 100 seat credits a month | Best API-first CRM | | [Salesforce](https://frontal.so/gtm-apis/crm-apis/salesforce-api-review) | $125/seat/mo | Not sold by the unit | No free tier with API access. Developer Edition is free and gets 15,000 calls a day. | Best CRM API for enterprise integration | Read from each vendor's own pricing page on 24 October 2026. In detail ## The case for each one Each one below is matched to a reason rather than scored, and each one names what you give up by taking it. A replacement with no downside is a replacement nobody has actually run. ### HubSpot API Free with the full API and published limits of 100 requests per 10 seconds. The strongest replacement unless the dialer was the point. [HubSpot](https://frontal.so/gtm-apis/crm-apis/hubspot-api-review) answers the planning problem first. The free tier allows 100 calls per 10 seconds and 250,000 a day, Professional allows 190 per 10 seconds and 625,000 a day, and all of it is in the documentation. Against Close's RateLimit header, that is the difference between sizing a job on paper and measuring it in production. It answers the cost question second. The free CRM covers two users with full object access over REST and no credit meter, and Starter is $20 a seat with the same API. Close has no free tier at any size, so a pipeline that only needs somewhere to land rows costs nothing here. And it carries the marketing side that Close deliberately leaves out: forms, landing pages, workflows and reporting in the same system, plus two official [MCP servers](https://frontal.so/gtm-apis/mcp-servers). Close ships an MCP server too, so that part is a tie. #### What you give up Calling as a first-class object. HubSpot has no dialer of Close's kind in its record here, so a phone-heavy team bolts one on and writes the activity back through a second integration. Above Starter, Professional and Enterprise pricing is a quote. #### When it is the wrong answer An inside sales team whose day is the power dialer. Swapping Close for HubSpot to save a seat price and then buying a separate dialer usually costs more and adds the exact seam Close was built to remove. [Read the review](https://frontal.so/gtm-apis/crm-apis/hubspot-api-review) · [Close vs HubSpot](https://frontal.so/gtm-apis/compare/hubspot-vs-close) ### Pipedrive A $14 pipeline with full API access, an MCP server and a budget you can compute. The cheapest paid seat among the Close alternatives at list price. [Pipedrive](https://frontal.so/gtm-apis/crm-apis/pipedrive-api-review) is the like-for-like on price and simplicity. Lite is $14 a seat a month on annual billing with full API access, close to Close Solo at $9 billed annually, and both are CRMs a small sales team can run without an administrator. Pipedrive publishes an MCP server, as Close does. The difference is that Pipedrive publishes the arithmetic. Each seat gets 30,000 tokens a day times a plan multiplier, a single read costs 2 tokens and a search costs 40. Close tells you the shape of its limits and not the numbers, so here you can work out on paper whether a nightly sync fits before you build it. Moving up the plans raises the API budget directly. Premium at $59 multiplies it by five and Ultimate at $79 by seven, which is the opposite of Close, where higher plans buy calling features and the API stays the same. #### What you give up The phone. Close builds calls, SMS and sequences into the product and the API, and nothing in its record here is a power dialer. There is also no free tier, only a 14-day trial with no card. #### When it is the wrong answer An integration that searches by email on every write. At 40 tokens a search against 2 for a read, a two-seat Lite account runs out at 1,500 searches a day, which a busy inbound flow can reach by lunchtime. [Read the review](https://frontal.so/gtm-apis/crm-apis/pipedrive-api-review) · [Close vs Pipedrive](https://frontal.so/gtm-apis/compare/close-vs-pipedrive) ### Attio API A data model you define through the API, a free plan with the full REST API, and one published ceiling. For teams that left Close because of the schema. [Attio](https://frontal.so/gtm-apis/crm-apis/attio-api-review) is the pick when Close's lead-centric model was the friction. Objects and attributes are defined through the API, so an account hierarchy, a product usage record or a partner becomes a real object rather than a custom field on a lead. Close is opinionated about what a sales record looks like, which is why it is fast to start and why some teams outgrow it. The request ceiling is published and simple: 100 requests a second for reads and 25 for writes, across the whole API, with a complexity score on top for the two list endpoints. A rate-limited request returns 429 with a Retry-After header that is an HTTP date rather than a number of seconds, which is the one detail worth handling before you rely on it. The free plan carries the whole REST API. Paid seats are $44 a user, or $35 on annual billing, and Attio ships an MCP server as part of its developer platform. #### What you give up Everything about the phone, and the sequencer. Attio is a CRM and a developer platform with no calling, no SMS and no sending, so Close's all-in-one becomes Attio plus at least one more contract. #### When it is the wrong answer A team that chose Close so reps would not need a second tool. Attio is the better database and the worse daily workspace for somebody who dials for a living. [Read the review](https://frontal.so/gtm-apis/crm-apis/attio-api-review) · [Close vs Attio](https://frontal.so/gtm-apis/compare/attio-vs-close) ### Salesforce More than a dozen APIs and a daily org budget from 100,000 calls. For the company that outgrew a single-team CRM. [Salesforce](https://frontal.so/gtm-apis/crm-apis/salesforce-api-review) is the destination when the company, not the sales team, needs the CRM. REST, SOAP, Bulk 2.0, GraphQL, Metadata, Tooling and Pub/Sub each do a different job, so a nightly load, an event stream and a deployment each have a proper route rather than sharing one REST surface. The limit is a published daily org budget: 100,000 calls plus 1,000 per Enterprise license, with a separate concurrency limit of 25 long-running calls over 20 seconds. Close publishes per-endpoint-group limits without the numbers, so it is a ceiling you can plan a nightly load against. Developer Edition is free with 15,000 calls a day, which lets the migration be built and tested before anybody buys a license. #### What you give up Price and speed to value. API access costs $25 a user on top of Pro Suite at $100, so $125 a seat is the real floor, against Close Solo at $19. And Salesforce is a platform that wants an administrator, which Close never did. #### When it is the wrong answer A small inside sales team. Salesforce at $125 a seat with a dialer bought on top is several times the cost of Close Growth for the same reps doing the same calls. [Read the review](https://frontal.so/gtm-apis/crm-apis/salesforce-api-review) Plan by plan ## What you would actually pay, on each one Every provider on this page publishes a rate card, so the real numbers can sit next to each other rather than behind a summary. The plan you want is the one whose included volume covers a normal month for you, not the cheapest one on the page. ### Close Close publishes 4 tiers, none of them free, and the paid ladder runs from $9 to $139. #### Solo $9 /user/mo billed annually, $19 month to month - One user only; API access and the event log - 500 AI credits a user a month - Calling, email and SMS built in #### Essentials $35 /user/mo billed annually, $49 month to month - Same API access - Shared pool of 1,000 credits a user, up to 10,000 - Pipelines and team visibility #### Growth $99 /user/mo billed annually, $109 month to month - Same API access - Shared pool of 1,500 credits a user, up to 15,000 - Close marks this the most popular plan #### Scale $139 /user/mo billed annually, $149 month to month - Same API access - Shared pool of 2,000 credits a user, up to 20,000 - Predictive dialing ### HubSpot API HubSpot publishes 4 tiers, one of them free. #### Free $0 up to 2 users - Full CRM object access over the API - Free Marketing, Sales, Service, Content, Data and Revenue tools - 100 calls per 10s, 250,000 a day - No credit card required #### Starter $20 /seat/mo - Same API, same limits as Free - 500 HubSpot Credits included - 1,000 marketing contacts - From $7/seat/mo on the current new-customer offer #### Professional Quote not on the CRM pricing page - 190 calls per 10s per app - 625,000 calls a day per account - Where the limit increase starts to matter #### Enterprise Quote not on the CRM pricing page - 190 calls per 10s per app - 1,000,000 calls a day per account - Highest published daily ceiling ### Pipedrive Pipedrive publishes 4 tiers, none of them free, and the paid ladder runs from $14 to $79. #### Lite $14 /seat/mo annual - $168 per seat per year - Token multiplier 1, so 30,000 a day per seat - Full API access #### Growth $39 /seat/mo annual - $468 per seat per year - Token multiplier 2, so 60,000 a day per seat - Email automation and follow-ups #### Premium $59 /seat/mo annual - $708 per seat per year - Token multiplier 5, so 150,000 a day per seat - Pipedrive marks this the most popular tier #### Ultimate $79 /seat/mo annual - $948 per seat per year - Token multiplier 7, so 210,000 a day per seat - The complete suite ### Attio API Attio publishes 4 tiers, one of them free, and the paid ladder runs from $44 to $99, with a quoted tier above it. #### Free $0 per user/month - Full REST API access - 100 seat credits a month - 250 workspace credits a month #### Plus $44 /user/mo, $35 annual - 500 seat credits a month - 1,500 workspace credits a month - Billed monthly or annually #### Pro $99 /user/mo, $79 annual - 1,000 seat credits a month - 10,000 workspace credits a month - The tier Attio marks as popular #### Enterprise Custom billed annually - 2,500 seat credits a month - Custom workspace credits ### Salesforce Salesforce publishes 5 tiers, none of them free, and the paid ladder runs from $25 to $550. #### Starter Suite $25 /user/mo - Sales, service, marketing and commerce in one - Slack included at no extra cost - Not listed on the API rate-limit table #### Pro Suite $100 /user/mo - Web Services API available for an extra $25/user/mo - So $125/user/mo all in, the cheapest Salesforce API access - 5 flows per org #### Core $195 /user/mo - APIs included, no add-on - Forecasting, opportunity scoring, conversation intelligence - Agentforce with the free Salesforce Foundations add-on #### Advanced $395 /user/mo - APIs included - 1 Full Sandbox included per org - Everything in Core plus advanced automation #### Max $550 /user/mo - APIs included - Slack Enterprise+ included - The complete suite Read the included volume before the headline price. A plan that costs twice as much and carries five times the credits is the cheaper plan, and on this page that is the usual case rather than the exception. Cost model ## What each one costs at your volume Close first, then every replacement. The model picks the cheapest published plan that covers your volume on each one, which is the comparison a row of entry prices cannot make. ### Close Priced per seat, so the bill moves with headcount rather than with volume. Cheapest seat for a team **Essentials** Per seat **$35 a month** Monthly **$105 for 3 seats** Twelve months **$1,260** Seat cap **Solo is one user, so a team starts at Essentials** ### HubSpot API Priced per seat, so the bill moves with headcount rather than with volume. Cheapest seat with the API **Starter** Per seat **$20 a month** Monthly **$60 for 3 seats** Twelve months **$720** ### Pipedrive Priced per seat, so the bill moves with headcount rather than with volume. Cheapest seat with the API **Lite** Per seat **$14 a month** Monthly **$42 for 3 seats** Twelve months **$504** ### Attio API Priced per seat, so the bill moves with headcount rather than with volume. Cheapest seat with the API **Plus** Per seat **$44 a month** Monthly **$132 for 3 seats** Twelve months **$1,584** ### Salesforce Priced per seat, so the bill moves with headcount rather than with volume. Cheapest seat with the API **Pro Suite** Per seat **$125 a month, including the $25 API add-on** Monthly **$375 for 3 seats** Twelve months **$4,500** API gate **costs you $100 a seat over Starter Suite** Plans are read from each vendor's own pricing page and the model picks the cheapest one that covers you, so these are list prices on the billing term each vendor publishes, annual where that is how it prices, before any discount you negotiate. Twelve months ## What a year costs at three volumes The same plan-fit arithmetic as the model above, run out to a year, because an annual number is what a budget actually asks for. Close, HubSpot, Pipedrive, Attio and Salesforce are priced per seat, so one row says it all: the figure is 3 seats for a year. | A year at | Close | HubSpot API | Pipedrive | Attio API | Salesforce | | --- | --- | --- | --- | --- | --- | | At any volume | $1,260 Essentials | $720 Starter | $504 Lite | $1,584 Plus | $4,500 Pro Suite | These are list prices on the published plan that covers each volume, on the billing term each vendor publishes, so they are the number before you negotiate. Decide ## Which replacement is yours Answer what matters most and the lean appears below. Every option is read from the records on this page, and staying on Close is one of the possible answers. What does your finance team want to see? Have you measured what you have today? Answer the questions above Each answer leans one way. The recommendation appears here once you have picked at least two. A tool like this can only weigh what is on the page. It does not know your workload, and the one test that does is the bake-off on this page: your own rows, queries or records, run on the cheapest entry each side offers. Where an answer leans on a certification or an integration, it means that vendor publishes it on the pages this directory read, which is not the same as the other one lacking it. The sources are listed at the foot of the page. Migration ## Moving off Close Written against HubSpot API, the first pick above, because the steps are the same whichever one you take and the specifics are what make them useful. Swap the name and the order still holds. 01 ### Measure the thing you are about to lose Export a count of every object and custom field in Close, and the API calls your integrations made last month. That inventory is the size of the job, more than the seat price, and it is the baseline the new system has to match. 02 ### Check which fields change HubSpot returns every field Close does, so nothing downstream has to change shape. Confirm the values rather than the keys: the same field can be named, typed or formatted differently on the other side. 03 ### Rewrite the auth and the limits, in that order Close authenticates with an API key, or OAuth 2.0 for user-facing integrations. HubSpot uses a private app token or OAuth 2.0. The limits are the part that bites later. Close's limits: per endpoint group. Published as a structure rather than as numbers; read the RateLimit header. HubSpot's limits: 100 req/10s on Free and Starter, 190 on Professional. Daily cap shared across apps. A loop tuned to the first will either crawl or get throttled on the second. 04 ### Run both for one billing cycle Keep the old key live and route a slice of real traffic to the new one. A month is the shortest honest test, because the limits and the overage rate only show up under a real month's load, and those are where the surprises live. 05 ### Cancel on the renewal date Annual seats and prepaid usage rarely refund mid-term. Check what the contract says about the time you have already paid for, and time the switch to the renewal date. The step people skip is the first one, and it is the only one that cannot be done after the fact. Once the old key is off you have nothing to compare the new one against, so a provider that is quietly worse on your workload looks like a provider that is fine. What practitioners say ## What practitioners say about HubSpot Transcribed as written and linked to the thread. A Reddit claim is a signal rather than a fact, so nothing here is the only source for any figure on this page. ### The per-app rate limit is why people end up running several private apps > API limits are not being respected or the sync isn't really set up in a way that someone with knowledge of the api. They may not be using a queue system. They haven't optimized and paid attention to api limits. \[...\] This may need to be done using multiple private app keys because you are hitting specific limits. \[...\] If these updates are happening all at once, batch and import/export APIs are the way to go [r/hubspot](https://www.reddit.com/r/hubspot/comments/1k2bpas/how_stable_is_hubspot_api_for_large_volume_of/) · April 2025 · 2 points This corroborates the shape of HubSpot's limits rather than the numbers. The rate, 100 requests per 10 seconds on Free and Starter and 190 on Professional, is per app, which is exactly why splitting work across several private apps raises throughput at all. The part that is easy to miss is that the daily cap is not per app, so the same trick does nothing for it. Splitting a sync across three private apps triples the requests a second you can make and shares one daily budget between them, which is a fix for the wrong half of the problem if the daily cap is what you were hitting. 14 threads read on 13 October 2026, searched by vendor name. Scores and dates are the comment's own. Nothing here is the only source for a price or a limit on this site: every figure in the tables above comes from a vendor's own page. What practitioners say ## What practitioners say about Pipedrive Transcribed as written and linked to the thread. A Reddit claim is a signal rather than a fact, so nothing here is the only source for any figure on this page. ### A third-party integration spends your token budget, and you find out late > \[...\] co-founder of Outfunnel. You're right that our Pipedrive API usage wasn't well optimized initially. At the time, we had no advance notice that API usage would become metered, and we were caught off guard by the change. Sorry if we burned through your limits during those first weeks! That said, we responded quickly once the issue became apparent, and since those initial hiccups, we've had no recurring problems with excessive or unnecessary API consumption. [r/pipedrive](https://www.reddit.com/r/pipedrive/comments/1tvs4y4/marketing_emails_campaigns_vs_mailchimp/) · June 2026 · 2 points A vendor on the record about spending somebody else's allowance, which is the clearest illustration of what a shared daily budget means. Pipedrive's budget is 30,000 tokens times a plan multiplier times your seats, pooled across every integration on the account, so an app you installed from the marketplace draws on the same pool as the pipeline you wrote. The practical note is the one the thread starts from: you will notice through a 429 on your own code rather than through a bill. Audit what is connected before you size a backfill, and check the marketplace apps first. 14 threads read on 13 October 2026, searched by vendor name. Scores and dates are the comment's own. Nothing here is the only source for a price or a limit on this site: every figure in the tables above comes from a vendor's own page. What practitioners say ## What practitioners say about Salesforce Transcribed as written and linked to the thread. A Reddit claim is a signal rather than a fact, so nothing here is the only source for any figure on this page. ### Paying per seat for integrations is what pushed teams into sharing credentials > \[...\] I've seen SO much horrible security practise and API user sharing at small/mid size companies who just can't afford a proper full user license for each dedicated integration. Can't wait to share this news tomorrow to my boss. [r/salesforce](https://www.reddit.com/r/salesforce/comments/11mycpz/api_only_licences_finally/) · March 2023 · 11 points Written when API-only licenses arrived, and it is the clearest practitioner account of what this page's pricing section describes. When a license costs $125 a seat with the API add-on, a company with six integrations is being asked for six seats for software rather than people, and the thing that gives way is the credential. The security consequence is the part a rate card does not show. One shared integration user across six systems means no way to tell which of them made a call, revoked access for one revokes it for all, and the daily org budget drains with no attribution. Price the integration users before you commit, not after. 14 threads read on 13 October 2026, searched by vendor name. Scores and dates are the comment's own. Nothing here is the only source for a price or a limit on this site: every figure in the tables above comes from a vendor's own page. Verdict ## Should you actually switch? The short answer is at the top of this page. Before you act on it, run the test below, because it is the cheapest way to find out whether that answer holds for you. Before you migrate anything A CRM migration is a data-model migration, so test that rather than the API. Build your three most awkward objects in the replacement, using a free tier, a trial or a small paid top-up on each, then point one real integration at it and see what it has to invent. Count the reports and automations still pointing at the old system before you commit to a date: that number, not the seat price, is what decides whether this is worth doing. Keep going ## Head to head, and in a stack [HubSpot API vs Close Compare A free CRM that stores against a $19 one that dials. Both ship MCP, and only one treats a phone call as an object. Compare them →](https://frontal.so/gtm-apis/compare/hubspot-vs-close) [Attio API vs Close Compare Define the objects you sell to, or dial the list you already have. Both ship an API on every tier and almost nothing else overlaps. Compare them →](https://frontal.so/gtm-apis/compare/attio-vs-close) [Close vs Pipedrive Compare Two CRMs a small sales team can run without an administrator. One is built around the phone, the other around the pipeline. Compare them →](https://frontal.so/gtm-apis/compare/close-vs-pipedrive) [All alternatives 57 Every provider in the directory that teams regularly try to replace, with the reasons and the replacements for each. Browse the hub →](https://frontal.so/gtm-apis/alternatives) ## Before you switch, *try the waterfall in Clay.* Clay runs a waterfall across 150+ data providers from one table, without a separate contract with each. A lookup that finds nothing costs no data credit, and the free plan includes 500 actions a month. [Try Clay](https://go.frontal.so/clay) [See all alternatives](https://frontal.so/gtm-apis/alternatives) Frontal is a Clay Elite Studio Partner. FAQ ## Switching from Close, answered **What is the best Close alternative?** It depends on why you are leaving, which is how this page is organized rather than ranked. The first pick here is HubSpot, which this directory lists as the best free CRM endpoint, and it costs nothing to start. The case for it, and what you give up, is in the section above. **Is there a free alternative to Close?** Yes, 2 of the replacements here do. HubSpot: Free CRM including API access. Attio: Free plan with full API access, 100 seat credits a month. **What is the cheapest Close alternative?** For 3 seats, Pipedrive: $42 a month against Close at $105, on the cheapest plan of each that carries the API. The cost model above moves with your own volume. **How were these alternatives chosen?** By the reason teams leave, not by a score. The page opens with the reasons teams leave and matches a replacement to each one. Published by ## [Frontal](https://frontal.so/) Frontal is the go-to-market partner for B2B tech companies past product-market fit. It publishes this directory. Every price, tier requirement and rate limit on this page was read from the vendor's own pricing page, developer documentation or knowledge base on the date below. Nothing on it is restated from a press release or a third-party listing. Frontal is a HubSpot Solutions Partner and a Salesforce Partner. Where a vendor publishes no public figure, this page says so rather than estimating. [How we checked](https://frontal.so/gtm-apis#method). Reviewed by [Kenny Damian](https://www.linkedin.com/in/kenny-damian-90aba221a/) Co-founder & Head of GTM, Frontal **Verified** 24 Oct 2026 **Sources** 17 vendor documents Read from - [close.com/pricing](https://www.close.com/pricing) - [developer.close.com](https://developer.close.com/) - [developer.close.com/api](https://developer.close.com/api/overview/rate-limits/) - [developer.close.com/api/resources](https://developer.close.com/api/resources/events) - [developer.close.com/mcp](https://developer.close.com/mcp) - [hubspot.com/pricing](https://www.hubspot.com/pricing/crm) - [developers.hubspot.com/docs](https://developers.hubspot.com/docs/developer-tooling/platform/usage-guidelines) - [developers.hubspot.com/docs/api-reference](https://developers.hubspot.com/docs/api-reference/latest/overview) - [pipedrive.com/en](https://www.pipedrive.com/en/pricing) - [developers.pipedrive.com/docs](https://developers.pipedrive.com/docs/api/v1/) - [developers.pipedrive.com/docs/api](https://developers.pipedrive.com/docs/api/v1) - [pipedrive.readme.io/docs](https://pipedrive.readme.io/docs/core-api-concepts-rate-limiting) - [attio.com/pricing](https://attio.com/pricing) - [docs.attio.com/rest-api](https://docs.attio.com/rest-api/guides/rate-limiting) - [docs.attio.com](https://docs.attio.com/) - [salesforce.com/sales](https://www.salesforce.com/sales/pricing/) - [developer.salesforce.com/docs](https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/intro_what_is_rest_api.htm)