Is systems.phion/evidence-engine up? Live MCP status

Yes, it is up. It answered an MCP initialize with no credential and negotiated protocol 2025-06-18.

A stock client connected with no credential and negotiated 2025-06-18. Use it.

Outcomeusable
HTTP status200
Protocol version2025-06-18
Server says it isphion-universal 1.57.0
Answered in206 ms
Endpoint checkedhttps://phion.systems/mcp
Checked

One MCP handshake with the listed endpoint (server/discover at 2026-07-28, then initialize for a server on the older revision), with no credential and no retry, identifying itself as agentwares-mcp-liveness/0.1 (+https://agentwares-agentcheck.vercel.app/bot). It runs when this page is requested and the result is reused for 10 minutes, so the time above is when it was taken.

Live status every few hours: Wellknown

Email me when this server changes

That was one look. To hear when it stops answering or its tools change, leave an address.

Free, no password or GitHub: one confirmation email first, then a check every hour and an email when it stops answering or its tools change. Every email has a link to stop. More about it.

Monthly census, 6 October 2026

The census sends the same request to every remote listing in the official registry once a month. On 6 October 2026 this one answered a stock client with no credential. Every listing’s result: index.ndjson (what the files hold: index.meta.json).

Agent discovery documents at this origin

A2A agent cardPublished, valid. A2A 1.0 shape; 132 skills; JSONRPC.
/.well-known/agent-card.json
MCP server card (SEP-2127)Not published (HTTP 405).
https://phion.systems/mcp/server-card
MCP server card (SEP-1649 location)Not published (HTTP 404).
/.well-known/mcp/server-card.json — SEP-1649, a draft superseded by SEP-2127 on 21 January 2026
Web Bot Auth key directoryNot published (HTTP 404).
/.well-known/http-message-signatures-directory

Read at https://phion.systems with the monthly census on 9 October 2026: one GET each, no credential, never a signed request. A2A against v1.0.1, the server card against the MCP Server Card schema (SEP-2127), the card at SEP-1649’s location against the shape it has, the key directory against the Web Bot Auth draft of 1 September 2026. Who publishes them.

Tool changes between snapshots

In the 2026-10 snapshot it listed 135 tools: a2a_transaction_bridge, abandoned_tool_detector, agent_approval_relay, agent_behavior_fingerprint, agent_budget_guard, agent_economic_graph, agent_memory_provenance, agent_rate_limit_negotiator, agent_reputation_evidence, agent_session_continuity, agent_task_handoff_receipt, ap2_mandate_bridge, attest, automated_dispute_bundle, autonomous_procurement, capability_benchmark, capability_negotiation_preflight, capability_verification, company_enrichment_evidence, concurrency_guard, conflict_resolution, contact_enrichment_evidence, context_provenance_labeler, counterparty_risk_preflight, cross_agent_receipt_bundle, cross_protocol_receipt, data_egress_preflight, data_freshness_certificate, delegated_credential_guard, delegated_spend_policy, delegation_scope_guard, delivery_evidence, dependency_provenance_assessment, document_to_verified_json, domain_ownership_evidence, duplicate_charge_detector, durable_agent_task, dynamic_service_pricing, economic_loop_detector, entity_enrichment_evidence, erc8004_identity_evidence, erc8004_reputation_intelligence, execution_cost_estimator, fetch_evidence, human_approval_policy, idempotency_replay_guard, index_feed, inspect_agent, inter_agent_policy_evaluator, interrupted_task_recovery, journey_verify, live_data_freshness, mandate_reserve, manifest_version_diff, market_data_snapshot, market_demand_predictor, mcp_2026_compatibility_gateway, mcp_a2a_task_bridge, mcp_catalog_cache_guard, mcp_manifest_firewall, mcp_server_identity_evidence, mcp_transaction_gateway, memory_write_guard, multi_agent_escrow, multi_source_fact_bundle, oauth_issuer_binding_evidence, oauth_token_audience_guard, onchain_evidence, payment_capability_preflight, payment_delivery_atomicity, payment_diagnose, payment_optimizer, payment_preflight, payment_receipt_reconciler, payment_route_selector, person_enrichment_evidence, phion_discover, phion_enrich, phion_enrich_basic, phion_execute, phion_get_service, phion_inference, phion_intelligence, phion_preflight, phion_resolve, phion_search, phion_search_services, portable_observability_audit, preflight, price_discovery_engine, proof_of_service, provider_quality_predictor, purpose_bound_consent, quote_freshness_guard, redirect_callback_validator, reputation_update_receipt, resource_cycle_guard, retention_deletion_receipt, rwa_asset_due_diligence, rwa_compliance and 35 more.

Its tools changed between 2026-09 and 2026-10:

Which tools were added or removed, and whose description or schemas changed, from content hashes in the monthly snapshots. Per tool, as JSON: /v1/drift.

The listing

Registry namesystems.phion/evidence-engine
TitlePHION Agent Trust Infrastructure
Description123 agent services with free discovery, intent, x402 terms and signed verification.
Endpointhttps://phion.systems/mcp
Publisher repositorynone listed
Version1.57.0
Listing updated

Also

The full check by name, as JSON (on a 401 it also follows the OAuth discovery chain) · Watch it · Check another server · llms.txt

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