MCP servers for ChatGPT

NSF Awards MCP — National Science Foundation award database (free, no auth)

Lightning wallet for AI agents via Nostr Wallet Connect (NIP-47): budget caps, confirm, audit log.

Shared memory & coordination for AI coding agents — a blackboard, not an orchestrator.

Planka 2.x MCP server with verified card, task, comment, label, and list operations.

MCP server providing OpenFeature SDK installation guides and OFREP flag evaluation

OpenIBAN MCP — validate an IBAN's checksum + bank code and resolve the

Search OpenSearch indices, manage documents, check health and stats.

Query OpenStreetMap features like cafes, schools, and parks through Overpass. No key required.

MCP server for PagSeguro/PagBank — orders, Pix, boleto, credit card, charges

Launch coins quoted in tokenized stocks on Robinhood Chain; the user signs at a launch link.

Query the Peak Design catalog: search bags and camera gear, newest arrivals.

PeeringDB MCP — the peering ecosystem database. Look up networks by name or ASN, find internet…

AI agent vision for Sentry error tracking — with ROI measurement. perceptdot.com

Unofficial MCP server for PetKit smart feeders: status, feeding history and schedule control.

Gong MCP — wraps the Gong API v2 (OAuth)

GSA CALC+ ceiling labor rates — what vendors may charge per hour under GSA schedule contracts, for…

MCP server for help-scout

Hong Kong Monetary Authority (HKMA) public open API MCP. Keyless.

JPL Horizons MCP.

Securities-identifier validation MCP (ISIN / CUSIP).

ISTAT (Istituto Nazionale di Statistica) MCP — Italy's national statistics via the public SDMX 2.1…