"Understanding HTTP Requests" matching MCP tools:

• foura_single

  mcp

  Send one HTTP request and return the response. Use it for static pages, JSON APIs, and server-rendered HTML. Set unblocker:true for targets that reject basic HTTP requests. Switch to foura_proxy if the response is blocked, and use foura_browser when the page needs JavaScript.

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• check_headers

  ContrastAPI

  Validate HTTP security headers you provide (JSON): CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Permissions-Policy, Referrer-Policy against best practices. Use to test header config before deployment or validate non-public servers; use scan_headers to fetch live. Free: 30/hr, Pro: 500/hr. By default header values are truncated to 500 chars; pass include='full' for the full raw value. Returns {total, by_severity, findings}. No external requests.

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• vector_quantize

  IA-QA — 130+ QA & Dev Tools for AI Agents

  Simulate int8 or int4 quantization of float32 embedding vectors. Reduces storage by 4x (int8) or 8x (int4). Returns quantized values, scale factor, and precision loss (MSE). Useful for understanding vector DB compression trade-offs.

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• gribstream_build_runs_request

  GribStream MCP

  NO AUTH / PUBLIC / READ-ONLY. Builds and validates a copy-pasteable authenticated /api/v2/{dataset}/runs HTTP request without sending it. This tool does not execute the request, query weather values, or return forecast data. Use gribstream_query_runs when the user asks for actual model-run forecast data or CSV/JSON/NDJSON data. Generated direct API requests include Accept-Encoding: gzip, and generated curl commands use --compressed so large responses can be transferred compressed when the client supports it. The request body must use exact selectors discovered from the catalog or shared-parameter tools, with coordinates in request.coordinates and selectors in request.variables.

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• pull_content

  Meta-Stamp Pockets

  Pull licensed creator content from a specific pocket by ID. Use this tool when an AI agent needs to retrieve verified, provenance-tracked content for generation, RAG, or training purposes. Do NOT use for browsing or discovery — use search_pockets or list_pockets instead. Requires a valid Bearer token for authentication; unauthenticated requests return HTTP 401. Successful pulls trigger a metered charge ($0.001–$0.25 depending on content tier) and the transaction is logged for creator royalty distribution. The pocket_id parameter is a 24-character hex string identifying the specific content pocket to pull from. Returns the full content payload with provenance metadata including creator attribution and license terms.

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• http_errors_list

  quartermaster

  FREE (no wallet needed): index of documented HTTP status codes (use http_error_explain for a paid detailed explanation).

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• get_caller_identity

  Name Whisper — ENS Intelligence Layer

  Returns the authenticated identity of the calling agent. If you connected with ERC-8128 signed requests, this resolves your wallet address to your ENS name, agent metadata, and portfolio summary. Call this first to confirm your identity is recognized. Requires ERC-8128 authentication (signed HTTP requests). See GET /mcp/auth for setup details.

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• lookup_headers

  botoi-mcp

  Fetch HTTP response headers for a URL. Use when inspecting server configuration, security headers, or caching policies.

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• trigger_live_flow

  Power Automate MCP Server by Flow Studio

  Trigger an HTTP-triggered Power Automate flow by calling its live callback URL. Fetches the current signed trigger URL via the PA API (listCallbackUrl) then POSTs the provided body to it. If the flow trigger requires Azure Active Directory authentication, the impersonated Bearer token is automatically included — no extra configuration needed. Returns the HTTP status, response body, requiresAadAuth flag, and authType. Only works for flows with a Request (HTTP) trigger type.

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• list_error_codes

  Trillboards DOOH Advertising

  List every error code in the Trillboards API error catalog. WHEN TO USE: - Understanding what error codes the API can return. - Building a client-side error handler that covers all cases. - Looking up error types, HTTP statuses, and documentation URLs. RETURNS: - object: "list" - data: Array of { code, type, http_status, description, doc_url } - total: Total number of error codes. Equivalent to GET /v1/errors but executed in-process (no HTTP round-trip). EXAMPLE: Agent: "What error codes can the API return?" list_error_codes()

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• attester_package_exists

  Attester Oracle

  Does this PyPI or npm package name really exist? Deterministic answer from the real published artifact, signed, with typosquat-adjacency flags on misses. Free: 25 calls/day per client IP, shared with the /demo/v1/* HTTP routes, reset 00:00 UTC. Higher volume: paid HTTP routes at https://attester.dev/llms.txt.

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• discover

  XFMS — Model Source

  Show which quality dimensions matter for a stated purpose, WITHOUT ranking any models. Returns the inferred weights and the discovery-walk trace. Useful for understanding how XFMS interprets the purpose before committing to a pick.

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• get_trident_spec

  trident

  Returns the complete Trident 2D specification including grammar, syntax rules, coordinate system, containers, nodes, connections, shapes, and icon reference. Use this when you need deep understanding of the Trident DSL.

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• get_categories

  FundingLandscape

  Browse all funding categories with opportunity counts. Categories include: Grant, Construction, Goods & Services, Professional Services, Technology, Healthcare, Research, and more. Useful for understanding what types of opportunities are available. Does not count toward your monthly searches.

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• register_email

  PhoboMail

  Register a new agent email at phobomail.com. No auth needed. After registering, save the api_key and pass it as an HTTP header 'Authorization: Bearer <api_key>' on ALL future MCP requests — not as a tool argument.

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• get_endpoint_stats

  Singularity Layer MCP

  Get usage analytics for an endpoint: total requests, monthly requests, revenue, and success rate. PATs or endpoint API keys improve accuracy. PATs require mcp:read or mcp:*.

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• myEntitlements

  AILANG Parse

  Get the authenticated user's billing entitlements, usage, and plan details. Returns: plan name, monthly request limit, requests used, remaining requests, upgrade/manage URLs. Requires a valid AILANG Parse API key (dp_ prefix).

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• http-status-code-lookup

  Microapp

  Look up HTTP response status codes from RFC 9110 and the IANA registry. Search by code (404), category (4xx), or free-text (not found). Returns the canonical name, defining RFC, category, plain-English description, typical scenarios, and common mistakes.

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• webhook_endpoint_requests

  IA-QA — 130+ QA & Dev Tools for AI Agents

  Fetch the requests captured by a webhook created with webhook_endpoint_create. Returns the newest requests first with method, headers, query params, body payload, and timestamps.

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• get_ai_prediction

  HPSILab Quant Finance

  AI next-day prediction: probability the stock closes UP, a plain buy/watch/sell-lean signal, and how strongly the models agree (consensus). Available to every authenticated plan (Free / Pro / Enterprise); subject to the caller's plan requests/day and requests/minute limits. Args: ticker: Stock symbol, e.g. "TSLA".

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