RE Call MCP Memory Server

Trustworthy Postgres plus pgvector memory for AI agents.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

One-click editor setup isn’t available for this listing yet — we don’t have a confirmed install command, and we’d rather show nothing than point your editor at the wrong package or host. Follow the project’s own setup instructions, linked above.

Manual Client & Custom JSON ConfigExpand JSON ▾

No confirmed setup config for this listing yet. We only publish a config block when the install details come from the project itself — its README, its docs, or a verified owner. We haven’t found those for RE-call MCP Memory Server, and we’d rather show nothing than a guess you’d paste into your client. Follow the project’s own setup instructions for the current steps.

Documentation Overview

Memory that abstains instead of guessing.
RE-call is agent memory on your own PostgreSQL with pgvector. Each result carries a verdict, confidence, and provenance, while unsupported questions are refused instead of answered by the nearest match.

What it is · For agents · How it works · Try the demo · Install and integrate

What is RE-call

RE-call is agent memory on your own PostgreSQL database. It indexes source documents with pgvector and keeps validity, lineage, confidence, and provenance attached to every result.

Vector search returns nearby text. RE-call also checks whether that text is current, supported, and trustworthy enough for the query. A superseded claim is marked superseded; a result that does not clear the calibrated trust gate becomes ABSTAIN with a reason. Declared supersession makes the current memory win over stale but similar memory.

The default path uses local embeddings plus hybrid dense and Postgres full text retrieval. It needs no memory-layer LLM call. Additional retrieval, reasoning, and structured-fact modules are optional.

For the agent reading this, RE-call for agents explains the experience loop and how to use persistent memory as a trustworthy past rather than an unverified scratchpad.

How it works

RE-call builds an immutable, calibrated generation once and serves queries against that pinned generation. Solid arrows are the default path. Dashed arrows are opt in or reasoning only: the reranker, the entailment judge, graph expansion, and the answer provider. Every search, including the reasoning and fact paths, goes through trusted search, so nothing bypasses the pinned generation or the trust gate. Each box links to the file that implements it.

mermaid

flowchart LR

subgraph group_entry["Entry points"]
  node_cli["recall CLI<br/>commands"]
  node_mcp["MCP server<br/>tool handlers"]
  node_sdk["Agent SDK<br/>in process"]
end

subgraph group_build["Generation build"]
  node_manifest["Source manifest<br/>immutable input"]
  node_generations["Generation manager<br/>build, validate, promote"]
  node_parser["Parse and chunk<br/>documents to chunks"]
  node_embedder["Embedder<br/>local or hosted API"]
  node_graph_build["Semantic graph<br/>entities, relations"]
  node_calibration["Calibration<br/>certified threshold"]
end

subgraph group_serve["Trusted retrieval"]
  node_trusted_search["Trusted search<br/>query orchestrator"]
  node_gen_store["Generation store<br/>pinned generation"]
  node_retriever["Hybrid retriever<br/>dense, full text, RRF"]
  node_reranker["Reranker<br/>opt in"]
  node_trust_gate{{"Trust gate<br/>verdict or ABSTAIN"}}
  node_entailment["Entailment judge<br/>opt in"]
end

subgraph group_reason["Reasoning"]
  node_reasoner["Reasoning query<br/>evidence bundle, plan"]
  node_graph_expansion["Graph expansion<br/>one hop, before trust"]
  node_answer["Answer provider<br/>opt in LLM"]
end

subgraph group_facts["Provenance and facts"]
  node_provenance["Provenance controller<br/>fact review"]
  node_ledger["Fact ledger<br/>append only"]
end

node_caller(("Agent or user<br/>caller"))
node_postgres[("PostgreSQL + pgvector<br/>generations, chunks, graph")]

node_caller -->|"runs"| node_cli
node_caller -->|"tool calls"| node_mcp
node_caller -->|"imports"| node_sdk
node_sdk -->|"reuses handlers"| node_mcp
node_cli -->|"generation build"| node_generations
node_mcp -->|"ingest uploads"| node_generations
node_generations -->|"reads sources"| node_manifest
node_generations -->|"parses, chunks"| node_parser
node_generations -->|"embeds chunks"| node_embedder
node_generations -->|"builds graph"| node_graph_build
node_generations -->|"requires certified"| node_calibration
node_generations -->|"writes generation"| node_postgres
node_graph_build -->|"writes graph"| node_postgres
node_cli -->|"calibrate, publish"| node_calibration
node_calibration -->|"stores threshold"| node_postgres
node_cli -->|"search"| node_trusted_search
node_mcp -->|"search, evidence"| node_trusted_search
node_trusted_search -->|"pins generation"| node_gen_store
node_gen_store -->|"reads active"| node_postgres
node_trusted_search -->|"retrieves"| node_retriever
node_retriever -->|"embeds query"| node_embedder
node_retriever -->|"dense, full text"| node_gen_store
node_retriever -.->|"reorders"| node_reranker
node_trusted_search -->|"evaluates"| node_trust_gate
node_trusted_search -.->|"rejudges trusted"| node_entailment
node_mcp -->|"reasoning query"| node_reasoner
node_reasoner -->|"retrieves"| node_trusted_search
node_trusted_search -.->|"expands pre trust"| node_graph_expansion
node_graph_expansion -.->|"same generation graph"| node_postgres
node_reasoner -.->|"cited answer"| node_answer
node_mcp -->|"apply fact"| node_provenance
node_provenance -->|"fresh search"| node_trusted_search
node_provenance -->|"appends"| node_ledger
node_ledger -->|"stores"| node_postgres

click node_cli "https://github.com/GiulioDER/RE-call/blob/master/recall/cli.py"
click node_mcp "https://github.com/GiulioDER/RE-call/tree/master/recall_mcp"
click node_sdk "https://github.com/GiulioDER/RE-call/blob/master/recall_agent/memory.py"
click node_manifest "https://github.com/GiulioDER/RE-call/blob/master/recall/manifest.py"
click node_generations "https://github.com/GiulioDER/RE-call/blob/master/recall/generations.py"
click node_parser "https://github.com/GiulioDER/RE-call/blob/master/recall/document.py"
click node_embedder "https://github.com/GiulioDER/RE-call/blob/master/recall/embeddings.py"
click node_graph_build "https://github.com/GiulioDER/RE-call/blob/master/recall/semantic_graph.py"
click node_calibration "https://github.com/GiulioDER/RE-call/blob/master/recall/calibration_v2.py"
click node_trusted_search "https://github.com/GiulioDER/RE-call/blob/master/recall/trust.py"
click node_gen_store "https://github.com/GiulioDER/RE-call/blob/master/recall/generation_store.py"
click node_retriever "https://github.com/GiulioDER/RE-call/blob/master/recall/retriever.py"
click node_reranker "https://github.com/GiulioDER/RE-call/blob/master/recall/rerank.py"
click node_trust_gate "https://github.com/GiulioDER/RE-call/blob/master/recall/trust.py"
click node_entailment "https://github.com/GiulioDER/RE-call/blob/master/recall/entailment.py"
click node_reasoner "https://github.com/GiulioDER/RE-call/blob/master/recall/reasoning.py"
click node_graph_expansion "https://github.com/GiulioDER/RE-call/blob/master/recall_mcp/graph_expansion.py"
click node_answer "https://github.com/GiulioDER/RE-call/blob/master/recall/answer_provider.py"
click node_provenance "https://github.com/GiulioDER/RE-call/blob/master/recall/provenance_controller.py"
click node_ledger "https://github.com/GiulioDER/RE-call/blob/master/recall/fact_ledger.py"
click node_postgres "https://github.com/GiulioDER/RE-call/tree/master/recall/migrations"

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classDef toneBlue fill:#dbeafe,stroke:#2563eb,stroke-width:1.5px,color:#172554
classDef toneAmber fill:#fef3c7,stroke:#d97706,stroke-width:1.5px,color:#78350f
classDef toneMint fill:#dcfce7,stroke:#16a34a,stroke-width:1.5px,color:#14532d
classDef toneRose fill:#ffe4e6,stroke:#e11d48,stroke-width:1.5px,color:#881337
classDef toneIndigo fill:#e0e7ff,stroke:#4f46e5,stroke-width:1.5px,color:#312e81
classDef toneTeal fill:#ccfbf1,stroke:#0f766e,stroke-width:1.5px,color:#134e4a
class node_cli,node_mcp,node_sdk,node_caller toneBlue
class node_manifest,node_generations,node_parser,node_embedder,node_graph_build,node_calibration,node_postgres toneAmber
class node_trusted_search,node_gen_store,node_retriever,node_reranker,node_trust_gate,node_entailment toneMint
class node_reasoner,node_graph_expansion,node_answer toneRose
class node_provenance,node_ledger toneIndigo

Ordinary recall search follows the direct path. Explicit reasoning accepts graph_expansion: auto is the default and resolves to bounded one hop expansion for every nonempty query; off keeps direct retrieval only; one-hop forces the graph path. The CLI uses --graph-expansion auto|off|one-hop; the MCP tool uses graph_expansion="auto"|"off"|"one_hop". Graph neighbors are generation bound, direct candidates remain first, and expanded candidates must clear the same trust boundary before they can support a cited answer.

The opt in choices attach to different points in the system:

Read the full README →View source on GitHub →

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Frequently Asked Questions about RE Call MCP Memory Server

We don't have a confirmed install command for RE-call MCP Memory Server yet, so we don't publish a generated one — a guessed package name would point at the wrong package or none at all. Follow the project's own README or setup instructions (https://github.com/GiulioDER/RE-call) for the current steps.

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Scanned 8/26/2026 via OSV.dev

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