Hacker ApprovedDepartments

Pglens

Shares rank 19 of 21 MCP servers by recommenders

Read-only PostgreSQL tools that let AI agents inspect databases through MCP, with read-only access as the default.

Read-only PostgreSQL tools that let AI agents inspect databases through MCP, with read-only access as the default.

5 people gave an opinion

recommend it
5
criticize it
0
approval share
100%
Each figure is one person. RecommendsCriticizes

Recommended in 1 of 13 months

  1. November 2025: not recommended
  2. December 2025: not recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: recommended
  6. April 2026: not recommended
  7. May 2026: not recommended
  8. June 2026: not recommended
  9. July 2026: not recommended
  10. August 2026: not recommended
  11. September 2026: not recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 5 people recommend itNeeds 10 or more, not met.
  • Nobody criticizes itNeeds 2 to 1 or better, met.
  • Recommended in 1 of 13 monthsNeeds 4 or more, not met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Read-only by default is smart

    “Focusing on read-only tools as the default is the right architectural move for LLMs.”

    Comment from 29 Mar 2026 in “Show HN: Pglens – 27 read-only PostgreSQL tools for AI agents via MCP”

    “Read-only by design is a smart constraint for agent tooling”

    Comment from 30 Mar 2026 in “Show HN: Pglens – 27 read-only PostgreSQL tools for AI agents via MCP”

    “read only is the right way to start”

    Comment from 30 Mar 2026 in “Show HN: Pglens – 27 read-only PostgreSQL tools for AI agents via MCP”

Other MCP servers people recommend

The four most recommended other MCP servers, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

Pglens compared with 4 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
Playwright MCP402265%11——
Context740785%10—Approved
Chrome DevTools MCP362262%9——
Serena MCP18386%9—Approved
PglensThis page50100%1——
See all 21 MCP servers, ranked

What people said

All 5 comments that mention it, newest first. Each links to the original comment.

“solves a surprisingly annoying problem”

RecommendsComment from 31 Mar 2026 in “Show HN: Pglens – 27 read-only PostgreSQL tools for AI agents via MCP”

“Read-only by design is a smart constraint for agent tooling”

RecommendsComment from 30 Mar 2026 in “Show HN: Pglens – 27 read-only PostgreSQL tools for AI agents via MCP”

“read only is the right way to start”

RecommendsComment from 30 Mar 2026 in “Show HN: Pglens – 27 read-only PostgreSQL tools for AI agents via MCP”

“Focusing on read-only tools as the default is the right architectural move for LLMs.”

RecommendsComment from 29 Mar 2026 in “Show HN: Pglens – 27 read-only PostgreSQL tools for AI agents via MCP”

“pglens gives agents the context to get it right the first time”

RecommendsComment from 29 Mar 2026 in “Show HN: Pglens – 27 read-only PostgreSQL tools for AI agents via MCP”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.