NAIF Gravity SOS — MCP, API, Webhook & JSON Rescue

{
  "protocolVersion": "1.0",
  "name": "NAIF Gravity SOS — MCP, API, Webhook & JSON Rescue",
  "description": "NAIF Gravity offers free bounded MCP tool-schema/timeouts, API 401/429/502, webhook signature, JSON schema, and agent integration diagnostics. Micro Tools V2: free previews; one-time $1 JSON validity, $2 API response shape and $3 JSON normalization. Paid reports require buyer approval and PAYMENT_VERIFIED. No subscriptions or automatic charges; regional payment rules apply. A2A skills discover services; paid checks use linked HTTPS pages.",
  "author": "NAIF",
  "wellKnownURI": "https://naifgravity.com/.well-known/agent.json",
  "url": "https://naifgravity.com/a2a/v1",
  "version": "1.7.2",
  "provider": {
    "organization": "NAIF",
    "url": "https://naifgravity.com/"
  },
  "documentationUrl": "https://naifgravity.com/services?utm_source=a2a_registry&utm_medium=referral",
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  "supportsAuthenticatedExtendedCard": null,
  "security": [],
  "securitySchemes": {},
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": [
      {
        "uri": "https://a2a-registry.org/extensions/registry/v1",
        "params": {
          "payment": {
            "model": "freemium",
            "rails": [
              {
                "type": "stablecoin",
                "caip2": "eip155:8453",
                "token": "USDC",
                "network": "base",
                "protocol": "x402",
                "settlementTime": "fast",
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            "direction": "inbound",
            "protocols": [
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        "required": false,
        "description": "Optional payment discovery: free bounded diagnostics and paid x402 API calls; region-specific checkout eligibility remains enforced by the source domain"
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  "defaultInputModes": [
    "text/plain",
    "application/json"
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  "defaultOutputModes": [
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    "application/json"
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  "skills": [
    {
      "id": "naif_sos_collision",
      "name": "NAIF SOS Collision — Free Failure Doctor",
      "description": "Primary first step for sanitized MCP/API/webhook/agent failures. Routes the failure through Collision Chamber and returns collision_id, source_token, bounded micro-proof and explicit recovery templates without automatic quote, checkout, payment or execution.",
      "tags": [
        "naif-sos",
        "collision",
        "free-diagnostic",
        "mcp",
        "api",
        "webhook",
        "agent-reliability",
        "micro-proof",
        "mcp-tool-schema",
        "mcp-timeout",
        "api-401",
        "api-authentication",
        "webhook-signature",
        "json-schema",
        "agent-technical-repair"
      ],
      "examples": [
        "Diagnose an MCP tool schema mismatch without exposing credentials.",
        "My API returns 401 or 429; identify the likely failure.",
        "Diagnose webhook signature verification failure."
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "agent_capability_arena",
      "name": "NAIF Agent Arena Synthetic Challenges",
      "description": "Run bounded synthetic capability tests and receive an opt-in shareable signed scorecard; no payment or execution.",
      "tags": [
        "agent-arena",
        "synthetic-benchmark",
        "signed-scorecard"
      ],
      "examples": [
        "Test my MCP schema diagnosis in a synthetic fixture"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "mcp_free_diagnostic",
      "name": "Free MCP Diagnostic",
      "description": "Diagnose MCP server and tool failures first and return structured JSON evidence before any recovery request.",
      "tags": [
        "mcp",
        "mcp-server",
        "mcp-tools",
        "debugging",
        "free-diagnostic",
        "structured-json"
      ],
      "examples": [
        "MCP tool unavailable",
        "MCP server timeout",
        "MCP capability mismatch"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "technical_rescue",
      "name": "Technical Rescue",
      "description": "Match API and webhook failures to safe diagnostic guidance and bounded fixes.",
      "tags": [
        "debugging",
        "api",
        "webhook",
        "technical-rescue"
      ],
      "examples": [
        "502 Bad Gateway",
        "webhook signature missing"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "repair_packet",
      "name": "Repair Packet",
      "description": "Return a machine-readable repair packet with causes, checks, guardrails, free diagnostic and FixGraph URL.",
      "tags": [
        "repair",
        "agent",
        "fixgraph",
        "diagnostics"
      ],
      "examples": [
        "Give me a repair packet for this API failure"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "rescue_receipt",
      "name": "Signed Rescue Receipt",
      "description": "Issue a privacy-preserving signed receipt after a matched technical rescue so agents can verify the match and display the Rescue Mesh badge.",
      "tags": [
        "trust",
        "signed-receipt",
        "jwks",
        "agent-discovery",
        "rescue-mesh"
      ],
      "examples": [
        "Issue a verifiable rescue receipt for this matched failure"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "trust_passport",
      "name": "Agent Trust Passport",
      "description": "Issue a signed point-in-time technical passport for an agent domain that explicitly opts in through its own trust manifest.",
      "tags": [
        "agent-trust",
        "passport",
        "attestation",
        "a2a",
        "mcp"
      ],
      "examples": [
        "Create a technical trust passport for this opted-in agent"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "delegation_preflight",
      "name": "Delegation Preflight",
      "description": "Re-check an opted-in agent before delegation and return a short-lived signed technical preflight token.",
      "tags": [
        "delegation",
        "preflight",
        "agent-trust",
        "attestation"
      ],
      "examples": [
        "Check this agent immediately before I delegate a task"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "agent_traffic_intelligence",
      "name": "Agent Traffic Intelligence",
      "description": "Share privacy-preserving route-class observations and query aggregated recent degradation signals before agent work.",
      "tags": [
        "traffic",
        "observability",
        "routing",
        "mcp",
        "a2a",
        "privacy"
      ],
      "examples": [
        "Check recent aggregate MCP route health before I start this task"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "cross_agent_continuity",
      "name": "Cross-Agent Continuity",
      "description": "Create, verify, checkpoint, hand off and resume signed sanitized task capsules across agents without storing raw task state on the continuity server.",
      "tags": [
        "continuity",
        "handoff",
        "checkpoint",
        "resume",
        "agent-to-agent",
        "signed-capsule"
      ],
      "examples": [
        "Package this task so another agent can resume from the verified state"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "adaptive_agent_marketplace",
      "name": "Adaptive Agent Marketplace",
      "description": "Learn aggregate agent demand, surface temporary agent-only introductory offers, and incubate new service candidates without mutating the core storefront catalog.",
      "tags": [
        "agent-market",
        "adaptive-offers",
        "demand",
        "pricing",
        "marketplace"
      ],
      "examples": [
        "Show me the current offer for an MCP recovery need"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "agent_pull_market",
      "name": "Agent Pull Market",
      "description": "Accept a sanitized abstract technical need and return a free probe, bounded adaptive offer, or candidate signal without storing raw need text or changing the core catalog.",
      "tags": [
        "agent-demand",
        "reverse-offer",
        "free-probe",
        "adaptive-market",
        "privacy"
      ],
      "examples": [
        "I need help with repeated API timeouts during burst traffic"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "problem_spokes",
      "name": "Free Problem-Specific Diagnostics",
      "description": "Discover six bounded machine-readable diagnostic entrypoints for MCP timeout, API auth, webhook, JSON schema, CI and deployment failures before requesting a quote.",
      "tags": [
        "problem-feed",
        "free-diagnostic",
        "mcp",
        "api",
        "webhook",
        "json-schema",
        "ci",
        "deployment"
      ],
      "examples": [
        "Find the free diagnostic for an API 401",
        "Diagnose a GitHub Actions failure"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "collision_chamber",
      "name": "Collision Chamber",
      "description": "Submit one sanitized MCP/API/webhook/agent failure and receive a bounded micro-proof, deterministic failure route, collision_id and source_token. No automatic quote, checkout, payment or production mutation.",
      "tags": [
        "collision",
        "failure-routing",
        "micro-proof",
        "mcp",
        "api",
        "webhook",
        "agent-reliability"
      ],
      "examples": [
        "Route this MCP schema failure",
        "Classify this API 429 failure",
        "Diagnose this webhook signature failure"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "machine_fixed_offers",
      "name": "Legacy MCP Fixed-Outcome Offers — Intent Only",
      "description": "Discover legacy MCP outcome offers at USD 3, 7 and 12. These record non-binding intent and are not payable Micro Tools V2 products. Use the live service catalog for current one-time purchases; intent acceptance does not verify payment.",
      "tags": [
        "mcp",
        "fixed-price",
        "machine-buyer",
        "offer-card",
        "free-probe"
      ],
      "examples": [
        "Show the fixed offer for an MCP timeout",
        "Show the fixed offer for an invalid MCP tool schema"
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "naep_shadow_quote",
      "name": "NAEP Shadow Solution Quote",
      "description": "Discover the direct HTTPS JSON Request for Solution with budget-aware plans and a non-binding quote. Stops at QUOTED; no payment, checkout or production execution.",
      "tags": [
        "rfs",
        "technical-procurement",
        "budget-aware",
        "shadow",
        "quote"
      ],
      "examples": [
        "Request a sanitized plan for an MCP schema mismatch within a small budget"
      ],
      "inputModes": [],
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    },
    {
      "id": "json_validity_check_v2_discovery",
      "name": "JSON Validity Check — Micro Tools V2",
      "description": "Discover $1 one-time JSON validity: parse errors, duplicate keys, safe repair, inferred schema and checksum. Free preview; paid report after verified checkout. A2A discovery only. Service: https://naifgravity.com/service/json-validity-check?utm_source=a2a_registry&utm_medium=referral",
      "tags": [
        "micro-tools-v2",
        "json",
        "developer-tools",
        "free-preview",
        "one-time-payment",
        "service-discovery"
      ],
      "examples": [
        "Find JSON Validity Check",
        "Show the free sample preview.",
        "Show the buyer-approved one-time purchase route."
      ],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "api_response_shape_check_v2_discovery",
      "name": "API Response Shape Check — Micro Tools V2",
      "description": "Discover $2 one-time API JSON shape comparison: field/type changes and TypeScript/OpenAPI schemas. No live API calls. Free preview; verified checkout required. A2A discovery only. Service: https://naifgravity.com/service/api-response-shape-check?utm_source=a2a_registry&utm_medium=referral",
      "tags": [
        "micro-tools-v2",
        "json",
        "developer-tools",
        "free-preview",
        "one-time-payment",
        "service-discovery"
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      "examples": [
        "Find API Response Shape Check",
        "Show the free sample preview.",
        "Show the buyer-approved one-time purchase route."
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      "inputModes": [],
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    {
      "id": "json_normalizer_v2_discovery",
      "name": "JSON Normalize Mini — Micro Tools V2",
      "description": "Discover $3 one-time JSON normalization: sorting, optional trim, duplicate warnings, change log and SHA-256. Source unchanged. Free preview; verified checkout. A2A discovery only. Service: https://naifgravity.com/service/json-normalizer?utm_source=a2a_registry&utm_medium=referral",
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        "developer-tools",
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        "service-discovery"
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      "examples": [
        "Find JSON Normalize Mini",
        "Show the free sample preview.",
        "Show the buyer-approved one-time purchase route."
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  "conformance_errors": null,
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