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Postgram

Self-hosted memory for AI agents with hybrid search, knowledge graphs, tasks, and document sync.

Connector by ivo-toby · GitHub account verified by the MCP Registry

IndexedAGPL-3.0Remote (HTTP)★ 10
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About

Self-hosted memory for AI agents with hybrid search, knowledge graphs, tasks, and document sync.

Reviews

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Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 25, 2026.

Tools
6 read · 8 write · 2 delete · 1 not yet classified
Secrets
None asked for
Install scripts
None found
Runs as
Docker image

Tools by what they do 17

Read from the source code; the running server may list different tools.

Read 6 · Look things up without changing anything.

  • expand
  • groom_session_context
  • queue
  • recall
  • search
  • task_list

Write 8 · Create, change, send or run things.

  • link
  • store
  • store_session_context
  • sync_push
  • sync_status
  • task_create
  • task_update
  • update

Delete 2 · Delete, drop, revoke or wipe things.

  • delete
  • unlink

Not yet classified 1 · We could not tell from the name and description.

  • task_complete

Network hosts it talks to 5

  • api.anthropic.com · found in code
  • api.openai.com · found in code
  • github.com · found in code
  • host.docker.internal · found in code
  • postgram.dev · found in code

Files it touches

  • /Users/ivo.toby/.codex/worktrees/dabec7ed-521f-42fd-b18e-0c0d542e7ccc/postgram-TASK-001-bulk-archive-service
  • /Users/ivo.toby/.codex/worktrees/dabec7ed-521f-42fd-b18e-0c0d542e7ccc/postgram-TASK-002-rest-bulk-archive-endpoint
  • /Users/ivo.toby/.codex/worktrees/dabec7ed-521f-42fd-b18e-0c0d542e7ccc/postgram-TASK-003-ui-bulk-archive-api-client
  • /Users/ivo.toby/.codex/worktrees/dabec7ed-521f-42fd-b18e-0c0d542e7ccc/postgram-TASK-004-cleanup-basket-state
  • /Users/ivo.toby/.codex/worktrees/dabec7ed-521f-42fd-b18e-0c0d542e7ccc/postgram-TASK-005-search-result-selection
  • /Users/ivo.toby/.codex/worktrees/dabec7ed-521f-42fd-b18e-0c0d542e7ccc/postgram-TASK-006-cleanup-basket-review-drawer
  • /Users/ivo.toby/.codex/worktrees/dabec7ed-521f-42fd-b18e-0c0d542e7ccc/postgram-TASK-007-search-cleanup-flow-integration
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-004-admin-auth-persistence
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-005-admin-session-routes
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-006-admin-mfa-step-up
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-007-admin-api-shell-diagnostics
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-008-admin-key-audit-stats-api
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-009-settings-secret-store
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-010-provider-config-apply
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-011-admin-auth-ui
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-012-admin-ops-dashboard-ui
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-013-admin-config-ui
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-014-admin-job-foundation
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-015-maintenance-admin-api
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-016-maintenance-admin-ui
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-017-docker-first-run-no-cli
  • /Users/ivo.toby/workspace/postgram/.worktrees/TASK-018-security-epic-validation
  • /Users/ivo.toby/workspace/postgram/.worktrees/WAVE-001-admin-feasibility-gate
  • /Users/ivo.toby/workspace/postgram/.worktrees/WORK-admin-onboarding-flow-bundle
  • Your home directory (~)
  • Any path the agent passes to its tools

Tools (17)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • delete

    Soft-delete an entity

  • expand

    Get the graph neighborhood of an entity — connected entities up to N hops

  • groom_session_context

    Preview or archive stale session-context memories for the authenticated client. Dry-run returns candidate summaries; archive mutates only matching rows for this client.

  • link

    Create a relationship between two entities

  • queue

    Get the enrichment and extraction queue status — useful for checking whether stored entities have been embedded and knowledge graph edges extracted. Set include_failures=true to see the most recent failure messages.

  • recall

    Recall an entity by ID

  • search

    Search stored knowledge using hybrid vector and keyword retrieval. Candidates are deduplicated by chunk and ranked with reciprocal-rank fusion: 1/(60+vector_rank) + 1/(60+keyword_rank), with a missing branch contributing zero. A candidate ranked first in both branches scores about 0.03279 before recency. The returned score is a relative RRF ordering value, not a probability or percentage; similarity remains the cosine value. Whitespace-separated keyword terms are ORed, while each term's simple lexemes are ANDed so compound identifiers such as ABC-1234 remain intact. In multi-term queries, stan…

  • store

    Store a new knowledge entity

  • store_session_context

    Store short-lived working context for resuming recent conversations. Creates a memory with metadata.memory_role=session_context, scopes it to the authenticated client_id, embeds it for recall, and skips graph extraction.

  • sync_push

    Sync a document repository. Sends a manifest of files with content and SHA-256 hashes.

  • sync_status

    Get the sync status of a document repository.

  • task_complete

    Complete a task

  • task_create

    Create a task

  • task_list

    List tasks

  • task_update

    Update a task

Show 2 more tools
  • unlink

    Remove a relationship between entities

  • update

    Update an entity

Signals

Stars
10
Forks
4
Open issues
4
Last commit
Oct 14, 2026 (14 days ago)
Last release
Oct 14, 2026 (14 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name
io.github.ivo-toby/postgram
Version
0.1.3
Auth
API key
Packages
oci ghcr.io/ivo-toby/postgram@sha256:29b61fb302bd52862b8eba43305ee2aa4fc072d5f9188652f1fe6324f49d5391
License
AGPL-3.0
Repository
github.com/ivo-toby/postgram
Website
postgram.dev
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
Official MCP Registrygithub-graphql
Cite this page

Postgram MCP server. Agent Mart. https://agentmart.dev/connectors/ivo-toby-postgram (last updated 2026-10-24)