People Data Labs vs ZeroBounce

People Data Labs 43

One revocable API key type with no scopes, with 1, 3 or 5 active keys by plan (20), less 10 because the docs show the key as api_key in the URL query string (10 of 30). The data endpoints only read, and there is no restricted or per-endpoint key (12 of 20). Records come from public and third-party sources and include free-text fields, and no prompt-injection guidance was found (2 of 15). The dashboard Usage tab and per-call credit headers give the operator visibility, with no audit log found (7 of 15). The security page states SOC 2 Type 2 and ISO 27001 compliance and quarterly external penetration tests. No security.txt, bug bounty or disclosure policy was found (12 of 20).

ZeroBounce 65

Several named keys besides a Master key, regeneration, deactivation and IP whitelists (25), less 10 because the documented calls carry the key in the api_key query string (15 of 30). Validation only reads, though file and list endpoints can delete uploads (12 of 20). Results are structured status codes with little free text (10 of 15). API usage and dashboard statistics endpoints (10 of 15). SOC 2 Type 2, ISO/IEC 27001:2022, continuous testing with Intigriti and penetration testing with BitSentinel; no public disclosure policy found (18 of 20). 15+12+10+10+18 = 65.

People Data Labs 70

No OpenAPI file was found at the docs root or in the docs index, re-checked on 2 November. A public Postman collection and Elasticsearch mappings for each dataset stand in (8 of 25). llms.txt on the docs site and a Markdown twin of every page (10). Each API has overview, reference, input, output, examples and FAQ pages that state purpose and billing (15 of 20). Enrichment inputs are typed with canonical value lists, while search takes an Elasticsearch 7.7 query or an SQL string, both free-form (9 of 15). Examples in five languages and a six-row error table with sample bodies (13 of 15). A v5 path, numbered dataset versions and monthly release notes back to 2019, the latest v36.0 on 20 October 2026 (15).

ZeroBounce 54

No OpenAPI or other machine-readable contract found; a Postman collection is linked (5 of 25). llms.txt lists marketing pages, and the docs have no Markdown twins (5 of 10). Endpoint pages explain timing, credits and when to use batch or file APIs (14 of 20). Parameter tables and listed status and sub-status values, including the ai_agent_mailbox sub-status added in July 2026 (10 of 15). Examples per endpoint, a sandbox and an error-code page (12 of 15). v2 paths, an API migration page and dated maintenance notices on the status page, with no API changelog (8 of 15). 5+5+14+10+12+8 = 54.

People Data Labs 25

No x402, MPP or L402 (0). Plan entry prices and the credit rule are public, $98 a month for 350 person records and $100 for 1,000 company records, one credit per match. The volume ladder and field-bundle prices sit in the dashboard (15 of 20). A free plan of 100 records a month with contact fields obfuscated, but neither the pricing pages nor the account docs say whether signup needs a card, so half the line, as cronofy and laminar with an unstated card rule (10 of 20, was 20). A person signs up in a browser to get a key (0). 0+15+10+0 = 25.

ZeroBounce 35

No x402, MPP or L402 (0). Per-credit prices public, from $39 for 2,000 validations (20). Freemium of 100 validations a month for business or premium domains; a card requirement isn't stated, and free webmail addresses don't qualify (15 of 20). A person signs up in a browser (0). 0+20+15+0 = 35.

People Data Labs 79

The October 2026 release notes (v36.0) are dated 20 October and the JavaScript SDK 14.7.0 and Go SDK 6.10.0 followed on 23 October (30). In the 90 days from 4 August, release notes on 18 August, 15 September and 20 October, plus JavaScript SDK releases on 11 and 16 September and 23 October (20). Public release notes, a Canny board for bugs and requests and a support address. We did not test support (11 of 15). Five official SDKs. JavaScript and Go are current, while the Python package's newest tag is 6.4.13 from 12 January 2026 and the repository's April job posting commit is in no release (11 of 15). Both SDK repositories have test and publish workflows and dependency updates (7 of 10). 30+20+11+11+7 = 79.

ZeroBounce 70

Closed service. The JavaScript SDK 3.0.0 was published on 25 October 2026 (30). No API changelog; the dated changes found in 90 days are that release and status-page notices, fewer than three releases (10 of 20). Support by email and 24/7 chat per the docs, a public status page; replies not tested (10 of 15). Official SDKs in many languages and an MCP server (15). Package health not checked (5 of 10). 30+10+10+15+5 = 70.

People Data Labs 77

data_include selects or excludes fields, size caps records at 1 to 100, gzip is supported and a 1 MB response limit is documented (20 of 25). Search pages with scroll_token and filters on any mapped field, with dataset to narrow the source (18 of 20). Errors carry a status, a type and a short message across six documented codes, with 404 meaning no match (13 of 20). The API is read-only and charges only on a 200, so a repeat is safe, though no retry guidance or idempotency key was found (12 of 20). Enrichment needs one identifier, defaults are sensible, and SDKs exist for Python, JavaScript, Ruby, Go and Rust (14 of 15).

ZeroBounce 69

A compact JSON result per address, batch validation and a file API for lists (18 of 25). Little to paginate; file status and results by file id (10 of 20). Status and sub-status codes say why an address failed, and the error page explains 400, 404 and 429 (14 of 20). Unknown results are free and safe to retry; repeated validations are charged again (12 of 20). Many official SDK wrappers and an MCP server, with few required parameters (15). 18+10+14+12+15 = 69.