{"id":"97be9bf3-f110-436c-bd60-5181f9f1df7b","shortId":"MDcCH5","kind":"mcp","title":"Bitcoin OP_RETURN","tagline":"Integrates with Bitcoin's blockchain through Lightning Network payments, enabling permanent embedding of custom messa...","description":"Integrates with Bitcoin's blockchain through Lightning Network payments, enabling permanent embedding of custom messages in OP_RETURN outputs and retrieval of previously stored blockchain data.\n\nMCP-OP-Return is a server implementation that bridges Bitcoin's blockchain with AI assistants by integrating with opreturnbot.com. It enables users to create Bitcoin transactions with OP_RETURN outputs containing custom messages, permanently embedding text in the blockchain through a Lightning Network payment flow. The server exposes tools and prompts that allow MCP clients to generate Lightning invoices for message embedding and retrieve previously stored OP_RETURN messages from transactions, making blockchain data interaction accessible through conversational AI interfaces.","tags":["bitcoin","return"],"capabilities":["mcp","transport-stdio","open-source"],"categories":[],"synonyms":[],"warnings":[],"endpointUrl":"https://github.com/benthecarman/mcp-op-return","protocol":"mcp","transport":"stdio","auth":{"type":"mcp","details":{"transport":"stdio"}},"qualityScore":"0.554","qualityRationale":"deterministic score 0.55 from registry signals: · indexed on pulsemcp · has source repo · 2 github stars · registry-generated description present","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"deterministic:mcp:v1","enrichmentVersion":1,"enrichedAt":"2026-05-02T07:22:09.952Z","embedding":null,"createdAt":"2026-04-18T21:49:27.869Z","updatedAt":"2026-05-02T07:22:09.952Z","lastSeenAt":"2026-05-02T07:22:09.952Z","tsv":"'access':121 'ai':59,124 'allow':98 'assist':60 'bitcoin':1,6,21,55,70 'blockchain':8,23,43,57,84,118 'bridg':54 'client':100 'contain':76 'convers':123 'creat':69 'custom':17,32,77 'data':44,119 'embed':15,30,80,107 'enabl':13,28,66 'expos':93 'flow':90 'generat':102 'implement':52 'integr':4,19,62 'interact':120 'interfac':125 'invoic':104 'lightn':10,25,87,103 'make':117 'mcp':46,99 'mcp-op-return':45 'messa':18 'messag':33,78,106,114 'network':11,26,88 'op':2,35,47,73,112 'open-source' 'opreturnbot.com':64 'output':37,75 'payment':12,27,89 'perman':14,29,79 'previous':41,110 'prompt':96 'retriev':39,109 'return':3,36,48,74,113 'server':51,92 'store':42,111 'text':81 'tool':94 'transact':71,116 'transport-stdio' 'user':67","prices":[{"id":"f91436a6-d4a8-49e7-b16d-a4dcf6c0dbd9","listingId":"97be9bf3-f110-436c-bd60-5181f9f1df7b","amountUsd":"0","unit":"free","nativeCurrency":null,"nativeAmount":null,"chain":null,"payTo":null,"paymentMethod":"mcp-free","isPrimary":true,"details":{"transport":"stdio"},"createdAt":"2026-04-18T21:49:27.869Z"}],"sources":[{"listingId":"97be9bf3-f110-436c-bd60-5181f9f1df7b","source":"pulsemcp","sourceId":"https://www.pulsemcp.com/servers/benthecarman-bitcoin-op-return","sourceUrl":"https://api.pulsemcp.com/v0beta/servers","isPrimary":true,"firstSeenAt":"2026-04-18T21:49:27.869Z","lastSeenAt":"2026-05-02T07:22:09.952Z"}],"details":{"listingId":"97be9bf3-f110-436c-bd60-5181f9f1df7b","quickStartSnippet":null,"exampleRequest":null,"exampleResponse":null,"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[],"useCases":[],"bestFor":[],"notFor":[],"kindDetails":{"source":"pulsemcp","transport":"stdio","server_name":"Bitcoin OP_RETURN","github_stars":2,"registry_url":"https://www.pulsemcp.com/servers/benthecarman-bitcoin-op-return","source_code_url":"https://github.com/benthecarman/mcp-op-return"},"updatedAt":"2026-05-02T07:22:09.952Z"}}