--- title: "Explorium API: pricing, rate limits & MCP | ONEGTMLAB" description: "Explorium API: Agent-first B2B data API (AgentSource v2): match and fetch businesses and prospects, 25+ enrichment bundles (firmographics…" canonical: https://www.onegtmlab.dev/tool-directory/sourcing/explorium --- # Explorium API: pricing, rate limits & MCP | ONEGTMLAB [](/) [ Book a call ](/book) ![](/_astro/explorium.D7Wqtnux.svg) API review # Explorium API review Agent-first B2B data API (AgentSource v2): match and fetch businesses and prospects, 25+ enrichment bundles (firmographics, technographics, Bombora intent, funding, hierarchy, contacts, waterfall phone, AI research), event feeds with enrollments and webhooks, sync (50) and async (10,000) jobs, plus the AgentSource MCP v2. Best for agent/MCP workflows that need company + prospect data in one tool. Verified 25 Oct 2026 · 11 endpoints listed · Official MCP server [ See pricing ](#pricing)[ Explorium API docs ](https://developers.explorium.ai/v2/conventions) At a glance Category Sourcing, Enrichment, Signals, Data platform Pricing model Credits Free tier Free Trial: $0, 100 credits, valid 90 days, no credit card (confirmed in our… Auth API key Official MCP Yes Best for Agent/MCP workflows that need company + prospect data in one tool [explorium.ai ↗](https://www.explorium.ai)[Pricing page ↗](https://www.explorium.ai/pricing/) ## What a call costs The actions you pay for, as Explorium prices them in credits. Action Cost Per Generate business or prospect (fetch) 1 (2 with Bombora intent filter) credit per returned result Match businesses / prospects; statistics; GET /v2/credits 0 credits Firmographics / funding / financial metrics / website keywords / professional profile 1 credit Technographics, Webstack, Bombora intent, traffic, hierarchy, employee ratings, company social presence, website changes, workforce trends, 10-K challenges/competition/strategy, AI research, email only, waterfall email 2 credits Email + phone, individual social presence, lookalike companies 5 credits Waterfall phone (external-provider phone) 15 credits Hashed identifiers (ABM) 1 credit per prospect, on top of email/phone Events 1 credit ## Pricing, plan by plan US dollars, as Explorium's pricing page shows them on 25 Oct 2026. Monthly and annual billing are shown apart. Free tier Free Trial: $0, 100 credits, valid 90 days, no credit card (confirmed in our live account: 100/100, expiry Jan 23, 2027) ### Lite One-off pack $29.99 per package of 500 credits ($0.06/credit) API includedPlan details buy another package ### Starter One-off pack $149.99 per package of 5,000 credits ($0.03/credit) API includedPlan details buy another package ### Growth One-off pack $749.99 per package of 30,000 credits ($0.025/credit) API includedPlan details buy another package ### Scale One-off pack $7,499.99 per package of 500,000 credits ($0.015/credit) API includedPlan details buy another package ### Enterprise Custom quote custom: volume discounts, additional QPM, search preview, resell rights, CRM integrations API included ## Rate limits 200 queries per minute per API key on a 60-second sliding window, counted per entity: a 50-row batch uses 50 queries. Limit default Enterprise Per Minute 200 queries additional QPM (custom) More on limitsLess Enterprise can buy additional QPM. ## How to get an API key Explorium uses API key. The steps below follow Explorium's own docs. 1. Create a Explorium account. API access starts on the Lite plan. 2. Sign up at [explorium.ai/pricing](https://www.explorium.ai/pricing/#admin-signup) (no card; 6-character emailed code), then the AgentSource console at admin.explorium.ai > API Keys (Create / Show / Copy / Rotate). app.explorium.ai is the older platform and rejected our account (NOT\_WORK\_EMAIL). MCP v2 uses the same key; the Vibe Prospecting connector uses OAuth 3. Send it with every request: header: api\_key: (OpenAPI securityScheme APIKeyHeader). 4. Make a first call: Match company name/domain to Explorium business\_id. Keep the key in an environment variable, never in the command. ``` curl -X POST "https://api.explorium.ai/v2/businesses/match" \ -H "api_key: $EXPLORIUM_API_KEY" \ -H "Content-Type: application/json" \ -d '{}' ``` ## Where the docs live What Where Documentation [developers.explorium.ai](https://developers.explorium.ai) API reference [developers.explorium.ai/v2/conventions](https://developers.explorium.ai/v2/conventions) OpenAPI spec [developers.explorium.ai/openapi.json](https://developers.explorium.ai/openapi.json) llms.txt [developers.explorium.ai/llms.txt](https://developers.explorium.ai/llms.txt) Base URL `https://api.explorium.ai` MCP server `https://mcp-v2.explorium.ai/mcp` ## Strengths and limits ### Where it fits - Agent/MCP workflows that need company + prospect data in one tool - Bundle-priced enrichments: 1 credit firmographics, 2 credits technographics/intent/traffic, 5 credits email+phone - Signal monitoring: enroll businesses/prospects and receive events (funding, job changes, product launches) by webhook - Async enrichment of up to 10,000 IDs per job ### Where it falls short - High-throughput loops on the default 200 queries/minute (each row in a batch counts as one query) - Teams wanting a subscription: credits are prepaid packages that expire after 12 months and do not auto-renew - Phone-heavy enrichment on a budget (waterfall phone 15 credits) ### Worth knowing - Rate limit counts entities, not HTTP requests: one 50-company match uses 50 of the 200 queries/minute. Source: [developers.explorium.ai/reference/rate-limit](https://developers.explorium.ai/reference/rate-limit) - Credits are prepaid packages: expire after 12 months (trial 90 days), no rollover, non-refundable, packages not auto-renewed; service stops when they run out. The public FAQ says auto-pay is 'available shortly', but the admin console already offers Auto-Refill (threshold-based). - v2 removed /bulk\_enrich and moved every path under /v2; MCP moved from mcp.explorium.ai to mcp-v2.explorium.ai (our 2026-07-17 note still lists the v1 URL). Sources: [developers.explorium.ai/v2/conventions](https://developers.explorium.ai/v2/conventions); [developers.explorium.ai/mcp-docs/v2/agentsource-mcp](https://developers.explorium.ai/mcp-docs/v2/agentsource-mcp) - Prospect fetch returns professional\_email\_hashed only; real contact details are a separate 2-15 credit enrichment. Source: [explorium.ai/credit-details](https://www.explorium.ai/credit-details/) - Resell rights only on Enterprise. Source: [explorium.ai/pricing](https://www.explorium.ai/pricing/) 3 moreShow fewer - LinkedIn posts enrichments (business and prospect) charge per REQUESTED ID even when nothing is returned; every other enrichment charges only for IDs that return data. Source: [developers.explorium.ai/llms-full.txt](https://developers.explorium.ai/llms-full.txt) (verified 2026-10-25) - Bombora intent filter (business\_intent\_topics) on fetch doubles the cost to 2 credits per returned result. Statistics endpoints are free: size the audience before fetching. Source: [developers.explorium.ai/mcp-docs/v2/agentsource-mcp](https://developers.explorium.ai/mcp-docs/v2/agentsource-mcp) (verified 2026-10-25) - Sync enrich body key is business\_ids (string or list up to 50); a singular business\_id key returns 422 'Provide exactly one of business\_ids or businesses\_to\_match'. ## Who should use it Use Explorium for Agent/MCP workflows that need company + prospect data in one tool Look elsewhere for High-throughput loops on the default 200 queries/minute (each row in a batch counts as one query) ## If Explorium is not the answer Other Sourcing tools in this directory, each with its own review. [ ![](/_astro/ai-ark.BE60pifs_Z1HkjgQ.webp) AI Ark Sourcing Free planOfficial MCP Best for sizing an ICP for almost nothing: People Preview costs 1 credit per page of up to 100. AI Ark API review →](/tool-directory/sourcing/ai-ark)[ ![](/_astro/apollo.DNg6-7d3.svg) Apollo Sourcing Free planOfficial MCP Best for people search at 0 credits on paid plans to size and pull prospect lists. Apollo API review →](/tool-directory/sourcing/apollo-io)[ ![](/_astro/blitz-api.Bf9EP17n_qoQcx.webp) BlitzAPI Sourcing From $99/moOfficial MCP Best for high-volume list building at a flat monthly price. BlitzAPI API review →](/tool-directory/sourcing/blitz-api) ## Before you build Four things to settle first, each read off Explorium's own pages. - **Confirm the API is on your plan**API access starts on the Lite plan. Free tier: Free Trial: $0, 100 credits, valid 90 days, no credit card (confirmed in our live account: 100/100, expiry Jan 23, 2027). - **Keep the key out of your code**API key. It is sent as: header: api\_key: (OpenAPI securityScheme APIKeyHeader). - **Design around the rate limit**200 queries per minute per API key on a 60-second sliding window, counted per entity: a 50-row batch uses 50 queries. - **Know the catch before you scale**Rate limit counts entities, not HTTP requests: one 50-company match uses 50 of the 200 queries/minute. Source: [developers.explorium.ai/reference/rate-limit](https://developers.explorium.ai/reference/rate-limit) ## Want us to build it for you? Tell us what you want Explorium to do in your stack. We will show you how we would wire it into your data, outbound or CRM, and what we would check first. [ Book a call ](/book)[ See case studies ](/case-studies) Read from [explorium.ai/pricing](https://www.explorium.ai/pricing/), [developers.explorium.ai/v2/conventions](https://developers.explorium.ai/v2/conventions) and [developers.explorium.ai/reference/rate-limit](https://developers.explorium.ai/reference/rate-limit). Verified 25 Oct 2026. All 11 endpointsFor developers: method, path, what it does and what it costs. **Base URL:** `https://api.explorium.ai` **Bulk and async:** Sync enrich takes up to 50 IDs; async.../job takes a dataset of up to 10,000 IDs (upload via /v2/async/entity-id-datasets/upload). The v1 /bulk\_enrich routes are removed in v2. Source: [developers.explorium.ai/v2/conventions](https://developers.explorium.ai/v2/conventions) **Webhooks:** Yes: v2 webhooks (create, patch, rotate secret, connectivity check) used for event enrollments and async jobs. Source: [developers.explorium.ai/openapi.json](https://developers.explorium.ai/openapi.json) Filter endpoints 11 endpoints Method Path What it does Cost POST `/v2/businesses/match` Match company name/domain to Explorium business\_id 0 credits (Match is free; returns credit\_usage total\_credits 0). Confirmed live: 1 call, 0 credits POST `/v2/businesses` Fetch (generate) businesses by filters 1 credit per returned business; 2 credits per result when the business\_intent\_topics (Bombora) filter is used POST `/v2/prospects` Fetch (generate) prospects by filters 1 credit per returned prospect; 2 credits per result when the business\_intent\_topics (Bombora) filter is used POST `/v2/businesses/stats | /v2/prospects/stats` Count matches for a filter set before fetching 0 credits (statistics endpoints are free) POST `/v2/businesses/{enrichment}/enrich (e.g. firmographics, technographics, bombora_intent, funding_and_acquisition, company_hierarchies)` Sync enrichment for one ID or up to 50 IDs (or 50 match inputs) 1-5 credits per entity by bundle (firmographics 1, technographics 2, Bombora intent 2, lookalikes 5) POSTasync `/v2/businesses/{enrichment}/job` Async enrichment of a dataset of up to 10,000 IDs same per-entity bundle cost POST `/v2/prospects/{contact_information|profiles|linkedin_posts}/enrich` Prospect enrichment: contact details (email / email+phone / waterfall options per credit sheet), professional profile, LinkedIn posts contact\_information: charged per result by source. Explorium email 2 / phone 5; external provider (waterfall 'full' mode) email 2 / phone 15; hashed\_identifiers +1 per prospect; nothing found = 0. Default waterfall mode explorium\_only. profiles 1 credit. linkedin\_posts (individual social presence) 5 credits, charged per REQUESTED prospect\_id even when no results POST `/v2/businesses/research/enrich` AI research on a business 2 credits per entity (AI Research, credit sheet); send header credit-usage: true to get the exact deduction POSTasync `/v2/businesses/events/enrollments` Enroll businesses to monitor events Events: 1 credit (pricing page bundle line; unit, per event vs per enrollment, not stated) POST `/v2/webhooks` Create a webhook (with secret rotation and connectivity check) Not stated GET `/v2/credits` Active credits summary free (confirmed live: 3 calls, no deduction) [](/) © 2026 ONEGTMLAB Private Limited. All rights reserved. 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