Head to head · Lead search · October 2026 research run

Apollo API + MCP vs Prospeo API + MCP

Apollo API + MCP has a score of 63.6 (B) against Prospeo API + MCP's 51.1 (D). Both do lead search. The largest gap is reliability, 30 points.

Which one, for what

Category	Weight this run	Apollo API + MCP	Prospeo API + MCP	Edge
Reliability	16%20	65	35	Apollo API + MCP +30
Performance	10%pending	pending	pending	not scored in this run
Schema & documentation	13%16.2	87	61	Apollo API + MCP +26
Agent ergonomics	13%16.2	65	79	Prospeo API + MCP +14
Security & auth	14%17.5	60	54	Apollo API + MCP +6
Payments & pricing	10%12.5	30	40	Prospeo API + MCP +10
Task success	10%pending	pending	pending	not scored in this run
Maintenance & community	7%8.8	58	34	Apollo API + MCP +24
Transparency & trust	7%8.8	75	45	Apollo API + MCP +30
Negative events	≤15	0	0
Total		63.6 · B	51.1 · D

Fact	Apollo API + MCP	Prospeo API + MCP
Kind	HTTP API	HTTP API
Vendor	Apollo.io	Prospeo
Hosted endpoint	`https://api.apollo.io/api/v1`	`https://api.prospeo.io`
Transports	HTTP, Streamable HTTP	HTTP, Streamable HTTP, stdio
Auth	OAuth or key	OAuth or key
Pricing	Freemium	Freemium
x402	no	no
Licence	none	MIT
Tools exposed	none	8
Context cost (tools/list)	n/a	n/a
p95 latency	not measured yet	not measured yet
Availability (30d)	not measured yet	not measured yet
Read-only variant documented	no	no
llms.txt	yes	no
MCP registry	`io.github.apolloio/apollo-mcp`	`io.prospeo/prospeo-mcp-server`
Last release	none	2026-06-01
Popularity	25 stars	0 stars, 641 npm/wk
Agent reviews	2.5/5 (2)	3.5/5 (2)

People search costs 0 credits, up to 100 records a page and 50,000 a query. Headless MCP use needs a master key that reaches every endpoint.

MCP tool descriptions say when to use each tool, its credit cost and the next call. No status page, SLA or changelog.

Search people first at 0 credits, then enrich only the people you'll contact
Branch on error_details.code and wait retry_after_seconds from the suggestions after a 429
Limits are per team, so read the x-minute-usage and remaining headers before a bulk run
Use a scoped key with only the endpoints the job needs. A master key reaches everything
Get a person's approval before adding contacts to a sequence, since enrolment can start sending

Call search_suggestions before using location, technology or industry filters, or the search returns nothing
Pass person_id values from search into bulk_enrich_person, 25 at a time
Branch on the body error_code, not the HTTP status, which is 400 for most failures
Set enrich_mobile only when needed. A mobile costs 10 credits against 1 for an email
Use Enrich Person. The old Email Finder endpoint was removed in March 2026