
Network Evidence MCP
io.github.ZzNiblev0.0.1Updated Oct 9, 2026
Read-only offline network profiles, caller-supplied Discovery and historical/synthetic cases.
Overview
Read-only network evidence server that reports whether an exact network or deployment supports a given capability or action, with explicit verdicts.
- What it does
- Network Evidence provides deterministic, offline evidence infrastructure for two questions: Discovery (what an exact network or deployment can support and what is currently observable) and Resolution (what the underlying network independently supports about an exact action). It observes, normalizes, replays, and evaluates evidence and reports explicit verdicts: supported, contradicted, insufficient, or ambiguous, each recording its evidence basis. It is explicitly not a wallet, signer, transaction-submission tool, or authority for an action.
- When to use it
- Use it when you need an independent, reproducible check of whether a specific network, deployment, or action is supported by evidence, rather than a claim of current availability. It suits evidence preflight, historical replay of pinned fixtures, and comparing candidates such as Base and Solana mainnet or testnet profiles.
- Requirements
- The manifest declares a remote streamable HTTP endpoint and no authentication, environment variables, or headers. The README's local demos require Node.js 20.12 or newer, npm install, and a clone of the repository; the Discovery demo is offline and deterministic.
Installation
In SourceWeft
- Open Network Evidence MCP in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Other MCP clients
Add this to your client's mcpServers config.
{
"mcpServers": {
"network-evidence": {
"type": "http",
"url": "https://network-evidence-mcp-preview-jrkc26rjga-ew.a.run.app/mcp"
}
}
}README
Network Evidence
Independent network evidence for exact networks, capabilities and actions.
Network Evidence provides deterministic evidence infrastructure for two related questions:
- Discovery: what can an exact network or deployment support, and what is currently observable or usable with evidence?
- Resolution: what does the underlying network itself independently support about this exact action?
Discovery support is distinct from current availability. Manifest membership is not proof of current support or availability, and an unknown required capability is not eligible.
Network Evidence observes, normalizes, replays, and evaluates evidence. It is
not a wallet, signer, transaction-submission tool, or authority for an action.
It reports explicit verdicts: supported, contradicted, insufficient, or
ambiguous. Every conclusion records its evidence basis. Execution, observed
effect, settlement, and finality are separate questions; support for one is
not support for another.
This source capsule contains @nec/core, @nec/resolver-evm,
@nec/adapter-x402, @nec/resolver-opstack, @nec/adapter-erc4337,
@nec/resolver-solana, @nec/adapter-x402-svm, @nec/resolver-zksys,
@nec/hub, @nec/lens, and @nec/discovery.
The Solana resolver is generic post-fact Solana network evidence; the x402 SVM
adapter is x402 v2 exact-SVM interpretation above that generic Solana evidence.
The ERC-4337 package is a narrow evidence-correlation adapter above generic EVM
evidence.
The zkSYS resolver is a thin zkSYS Tanenbaum BEFORE profile for pure historical
replay v0.1. Support does not imply current availability; archived replay gives
current availability unknown. It adds only a narrow provider-reported block
height-to-batch/range capability. It does not establish block-hash-to-batch
membership, Gateway settlement, data or PoDA availability, proof verification,
Syscoin inclusion, or finality. It is not wallet, signing, funding, paymaster,
or submission infrastructure. Package manifests retain private: true to
prevent accidental npm publication.
Base BEFORE parity uses the generic EVM BEFORE foundation plus a minimal OP
Stack overlay in @nec/resolver-opstack. There are two explicit profiles:
Base mainnet eip155:8453 (labelled mainnet) and Base Sepolia eip155:84532
(labelled testnet). The labels are presentation only and are never evidence.
The overlay adds one capability, OP Stack L2 block finality, whose
availability comes only from probe observations. It never claims settlement
and never infers withdrawal or output-root finalization. Replaying the pinned
archived fixtures gives current availability unknown. See
packages/resolver-opstack/README.md.
Solana BEFORE support lives in @nec/resolver-solana. There are two explicit
genesis-bound profiles: Solana mainnet solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
(labelled mainnet) and Solana devnet solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1
(labelled testnet). Each pins the full getGenesisHash result, and the labels
are presentation only. The manifest claims execution, observedEffects,
dataBinding and finality, never settlement. Availability comes only from
probe observations of the post-action read path. A Solana finalized
commitment is a source observation. It never establishes settlement or
economic irreversibility. Replaying the pinned archived mainnet and devnet
fixtures gives current availability unknown. See
packages/resolver-solana/README.md.
@nec/discovery is a thin public Discovery orchestrator above Core. A caller
supplies requirements and explicit candidates (presentation id, explicit
mainnet/testnet label, and an already-derived network, manifest and
snapshot). It can filter by exact candidate id and by environment. Core
composeDiscoveryMatch classifies each candidate, and Core builds and verifies
the deterministic DiscoverNetworksResult. Environment selects scope only and
never changes a classification. There is no network I/O, ranking, scoring or
network choice. See packages/discovery/README.md.
A deterministic, offline integration demo runs with
npm run -s demo:discovery. It covers Base and Solana, mainnet and testnet,
an external caller choice, and an evidence preflight for the chosen
candidate. See examples/discovery/README.md.
This repository intentionally has fresh history. Its selected package content comes from frozen source snapshots, but private Git history is not imported. It is licensed under Apache-2.0.
Reproducible Core -> Hub -> Lens demo
A zero-secret public integration path is included for the reviewed Base Sepolia ERC-4337 v0.6 case.
Requires Node.js 20.12 or newer.
The command replays a checksum-pinned public fixture through @nec/resolver-evm, evaluates the exact UserOperation through @nec/adapter-erc4337, equality-checks that fresh runtime result against the reviewed exact-fixture F2 Hub projection, then emits the existing browser-safe Lens case.
The demo is exact-fixture and deterministic. It does not add wallet/signing/ submission, bundler attribution, settlement, finality, confidence scoring or policy authority. See examples/core-hub-lens/README.md and examples/core-hub-lens/PROVENANCE.md.
Minimal NE Maps atlas
examples/ne-maps/ presents a versioned ne-maps-case-collection/v0.1 — the three stable Suite v1 cases plus the clearly labelled synthetic/local integrability case — as a small generic/multichain evidence atlas. It validates the collection fail-closed and consumes pinned browser-safe Lens projections; it does not resolve network evidence or add a graph engine, policy layer or stronger claim. Each case exposes Lens, Trail and exact-action handoffs while preserving supported, contradicted, insufficient, ambiguous and unavailable states when present.
Then open http://127.0.0.1:4177/. TARGET_CORE_MUTATIONS = 0.
Release and reproducibility
- RELEASE.md — release status, package/version inventory and
release artifacts.
v1.1.0is the latest public source release, published on 2026-10-08 fromde3ee11d08d22d2791d8b5acfe17c2e61df23e81; no package is published to npm and no hosted deployment is part of the release. - docs/release/REPRODUCTION.md — clean-machine reproduction with expected test counts and output digests.
- docs/INTEGRABILITY_V1_1.md — Hub/Lens/Maps contracts and the BEFORE + Discovery completion summary.
- docs/release/DEPENDENCY_ADVISORIES.md
— release-gate dependency status and remediation record (
npm audit: 0 vulnerabilities observed on 2026-10-07 and 2026-10-08). - SECURITY_BOUNDARIES.md — evidence boundaries and the public/private boundary.
Source: README.md at commit 46e6600
Tools
0Version history
1- v0.0.1LatestOct 9, 2026
