"An introduction to GraphQL or resources for learning GraphQL" matching MCP tools:

• schema_parserA

  interactive-api-playgroundA

  Parse an OpenAPI 3.x schema object or GraphQL SDL string. Returns a structured list of endpoints (and GraphQL types).

  ConnectorNo auth

• x402-graphql-introspectD

  minia2a-mcpD

  Graphql Introspect: Graphql Introspect

  ConnectorNo auth

• x402-graphql-introspectD

  minia2a-mcp-remote

  Graphql Introspect: Graphql Introspect

  ConnectorNo auth

• memberful_graphql

  Memberful MCP by usefulapiA

  MUTATES Memberful data (potentially): escape hatch to run an arbitrary Memberful GraphQL operation — including any mutation — against your account's /api/graphql endpoint with optional variables. Prefer memberful_query for read-only calls.

  Connector

  Destructive

  No auth

• braintree_void_transaction

  Braintree MCP by usefulapiA

  DESTRUCTIVE. Void (cancel) a transaction that has NOT yet settled — e.g. an authorization or one submitted-for-settlement. Use the GraphQL global transaction ID. GraphQL mutation `voidTransaction`. For already-settled transactions use braintree_refund_transaction instead.

  Connector

  Destructive

  No auth

• graphqlA

  StratzB

  Send an arbitrary GraphQL query (with optional variables) directly to the STRATZ API at api.stratz.com/graphql. Use when no named tool covers the data you need. Field names are camelCase and must match the STRATZ schema exactly (e.g. numLastHits, goldPerMinute, constants { gameModes }); a query naming an unknown field fails with "Cannot query field", so introspect the type (`{ __type(name: "MatchPlayerType") { fields { name } } }`) before guessing. Requires a STRATZ Bearer token.

  ConnectorNo auth

• tronsave_list_extendable_delegatesA

  TronSave MCP ServerA

  List extendable delegate candidates for a `receiver` and `resourceType` (ENERGY|BANDWIDTH). Optional `suggestData` scores an extend-and-buy scenario for planning purposes. Read-only; does NOT create orders or change on-chain state. Works without `mcp-session-id`; when a session is present, auth is forwarded so results can reflect the logged-in account where supported. NOTE: this is GraphQL market data for discovery only. To actually submit an extension, call the authenticated REST `POST /v2/get-extendable-delegates` with `extendData` (payload shape differs from this GraphQL response).

  ConnectorNo auth

• tronsave_list_extendable_delegatesA

  Tronsave MCP TestnetA

  List extendable delegate candidates for a `receiver` and `resourceType` (ENERGY|BANDWIDTH). Optional `suggestData` scores an extend-and-buy scenario for planning purposes. Read-only; does NOT create orders or change on-chain state. Works without `mcp-session-id`; when a session is present, auth is forwarded so results can reflect the logged-in account where supported. NOTE: this is GraphQL market data for discovery only. To actually submit an extension, call the authenticated REST `POST /v2/get-extendable-delegates` with `extendData` (payload shape differs from this GraphQL response).

  ConnectorNo auth

• tronsave_list_extendable_delegatesA

  mcpA

  List extendable delegate candidates for a `receiver` and `resourceType` (ENERGY|BANDWIDTH). Optional `suggestData` scores an extend-and-buy scenario for planning purposes. Read-only; does NOT create orders or change on-chain state. Works without `mcp-session-id`; when a session is present, auth is forwarded so results can reflect the logged-in account where supported. NOTE: this is GraphQL market data for discovery only. To actually submit an extension, call the authenticated REST `POST /v2/get-extendable-delegates` with `extendData` (payload shape differs from this GraphQL response).

  ConnectorNo auth

• graphql_queryA

  stat-api — Sports DataA

  Run a GraphQL query against the same data with relations — nest from a game to its teams/players/odds in one call. Root fields are leagues (nfl, nba, …), each exposing its tables with the same filter arguments as REST plus `first`/`after` pagination. Do NOT send introspection queries (the schema is huge) — use describe_table instead; the SDL is at https://api.stat-api.com/api/v1/graphql/sdl. Requires an API key; every row resolved anywhere in the tree counts against quota.

  ConnectorNo auth

• tronsave_list_ordersA

  TronSave MCP ServerA

  Query the order list with paging. Returns `{ orders: [{ id, requester?.address, receiver.address, resourceType, resourceAmount, remainAmount, durationSec, unitPrice (SUN), isOwner, isMatching, apy, createdAt, typeOrder (NORMAL|FAST|EXTEND) }] }`. Filter `status` maps to GraphQL `isFulfilled`: `ACTIVE` → `UNFULFILLED`, `COMPLETED` → `FULFILLED`. Set `onlyMyOrder=true` (requires signature login + `mcp-session-id`) to scope to the caller's wallet as requester. Paging uses `offset`/`limit`. Use `tronsave_get_order` with an `id` for one full snapshot before mutating an order.

  ConnectorNo auth

• tronsave_list_ordersA

  Tronsave MCP TestnetA

  Query the order list with paging. Returns `{ orders: [{ id, requester?.address, receiver.address, resourceType, resourceAmount, remainAmount, durationSec, unitPrice (SUN), isOwner, isMatching, apy, createdAt, typeOrder (NORMAL|FAST|EXTEND) }] }`. Filter `status` maps to GraphQL `isFulfilled`: `ACTIVE` → `UNFULFILLED`, `COMPLETED` → `FULFILLED`. Set `onlyMyOrder=true` (requires signature login + `mcp-session-id`) to scope to the caller's wallet as requester. Paging uses `offset`/`limit`. Use `tronsave_get_order` with an `id` for one full snapshot before mutating an order.

  ConnectorNo auth

• tronsave_list_ordersA

  mcpA

  Query the order list with paging. Returns `{ orders: [{ id, requester?.address, receiver.address, resourceType, resourceAmount, remainAmount, durationSec, unitPrice (SUN), isOwner, isMatching, apy, createdAt, typeOrder (NORMAL|FAST|EXTEND) }] }`. Filter `status` maps to GraphQL `isFulfilled`: `ACTIVE` → `UNFULFILLED`, `COMPLETED` → `FULFILLED`. Set `onlyMyOrder=true` (requires signature login + `mcp-session-id`) to scope to the caller's wallet as requester. Paging uses `offset`/`limit`. Use `tronsave_get_order` with an `id` for one full snapshot before mutating an order.

  ConnectorNo auth

• tronsave_sell_order_manualA

  TronSave MCP ServerA

  Manually execute seller-side fulfillment of an existing order with a wallet `signedTx`. Returns the updated order payload after sell. Side effect: broadcasts a market/delegation transaction and may consume balances/resources; not idempotent — each call re-executes. Backend requires a signature session and `mcp-session-id`; the MCP gate is `public` to allow anonymous read-fallthrough, but the GraphQL helper rejects api-key-only sessions. Use only when explicit manual sell is intended; call `tronsave_get_order` first to verify order state before signing.

  Connector

  Destructive

  No auth

• tronsave_sell_order_manualA

  Tronsave MCP TestnetA

  Manually execute seller-side fulfillment of an existing order with a wallet `signedTx`. Returns the updated order payload after sell. Side effect: broadcasts a market/delegation transaction and may consume balances/resources; not idempotent — each call re-executes. Backend requires a signature session and `mcp-session-id`; the MCP gate is `public` to allow anonymous read-fallthrough, but the GraphQL helper rejects api-key-only sessions. Use only when explicit manual sell is intended; call `tronsave_get_order` first to verify order state before signing.

  Connector

  Destructive

  No auth

• tronsave_sell_order_manualA

  mcpA

  Manually execute seller-side fulfillment of an existing order with a wallet `signedTx`. Returns the updated order payload after sell. Side effect: broadcasts a market/delegation transaction and may consume balances/resources; not idempotent — each call re-executes. Backend requires a signature session and `mcp-session-id`; the MCP gate is `public` to allow anonymous read-fallthrough, but the GraphQL helper rejects api-key-only sessions. Use only when explicit manual sell is intended; call `tronsave_get_order` first to verify order state before signing.

  Connector

  Destructive

  No auth

• agentbase_introspectA

  AgentBaseA

  Return the full AgentBase GraphQL schema for reference. No authentication required.

  ConnectorNo auth

• complexity_meterA

  graphql-dos-shieldA

  Analyze GraphQL query complexity. Returns depth, field count, list multipliers, and a risk level (LOW/MEDIUM/HIGH/CRITICAL). CRITICAL means the query should be rejected.

  ConnectorNo auth

• drives_vehicle_reviewsA

  Pocket DrivesA

  List published renter reviews for a vehicle. Uses asset_id (not asset_rental_id) per the GraphQL schema.

  ConnectorNo auth

• GetVariantDetailsA

  GraphOS MCP ServerA

  Retrieve metadata for a graph variant: its identifier, federation version, the URL of its GraphQL endpoint, and its subgraph inventory (names only). Use this to assess a variant's composition setup, such as subgraph inventory and federation version compliance. Provide the graph ID and variant name (e.g., "production").

  ConnectorNo auth

• project_infoA

  MockbirdA

  Get a project's public root index: every resource with record counts and URLs, custom routes, auth mode, and export links (openapi.json, types.ts, postman.json, db.json, GraphQL). No adminKey needed. Try project "demo" for the shared public playground.

  ConnectorNo auth