Is world.agentindex/x402 up? Live MCP status

Yes, it is up. It answered an MCP server/discover with no credential and negotiated protocol 2026-07-28.

A stock client connected with no credential and negotiated 2026-07-28. Use it.

One MCP handshake with the listed endpoint (server/discover at 2026-07-28, then initialize for a server on the older revision), with no credential and no retry, identifying itself as agentwares-mcp-liveness/0.1 (+https://agentwares-agentcheck.vercel.app/bot). It runs when this page is requested and the result is reused for 10 minutes, so the time above is when it was taken.

Live status every few hours: Wellknown

Email me when this server changes

That was one look. To hear when it stops answering or its tools change, leave an address.

Free, no password or GitHub: one confirmation email first, then a check every hour and an email when it stops answering or its tools change. Every email has a link to stop. More about it.

Monthly census, 6 October 2026

The census sends the same request to every remote listing in the official registry once a month. On 6 October 2026 this one answered a stock client with no credential. Every listing’s result: index.ndjson (what the files hold: index.meta.json).

Agent discovery documents at this origin

Read at https://x402.agentindex.world with the monthly census on 9 October 2026: one GET each, no credential, never a signed request. A2A against v1.0.1, the server card against the MCP Server Card schema (SEP-2127), the card at SEP-1649’s location against the shape it has, the key directory against the Web Bot Auth draft of 1 September 2026. Who publishes them.

Tool changes between snapshots

In the 2026-10 snapshot it listed 141 tools: agent_health, ask_model, base_allowance, base_basename, base_block, base_block-number, base_call, base_can-sell, base_chain-id, base_code, base_contract, base_erc1155-balance, base_erc20-balance, base_erc20-transfers, base_erc721-tokens, base_estimate-gas, base_events, base_live-balance, base_network-info, base_nft-metadata, base_nft-owner, base_nonce, base_pending, base_proxy, base_quote, base_receipt, base_simulate, base_storage, base_total-supply, base_tx, can_pay, classify, contact_kairos, coordination_thread_schema, coordination_thread_snapshot_schema, crypto, decide, detect_language, digest_tool_result, discover_mcp_servers, discover_semantic, encoding_detect, encoding_transcode, extract_structured, fact_check, fraction_simplify, gas_price, geo_bbox, geo_bearing, geo_distance, geo_dms, geo_geohash, geo_midpoint, geo_point-in-polygon, get_agent_trust_kit, get_welcome_salon, guard, hash_hash, hash_hmac, honest_delivery_refusal_schema, intent, jobs, json_diff, json_flatten, json_query, json_schema-infer, json_validate, language, llm_claude_sonnet, llm_gpt_mini, llm_llama, mesh_claim_bounty, mesh_ledger, mesh_list_bounties, mesh_list_nodes, mesh_post_bounty, mesh_register_node, money_allocate, money_format, news, number_ordinal, number_radix, number_roman, number_words, pii_check, poll_contact_kairos, probe, rank, read_pdf, read_web_page, regex_replace, regex_test, relationship_memory_schema, research, return_visit_pledge_schema, search, sentiment, spam_check, stats_correlation, stats_percentile and 41 more.

Its tools changed between 2026-09 and 2026-10:

• Added (133): agent_health, ask_model, base_allowance, base_basename, base_block, base_block-number, base_call, base_can-sell, base_chain-id, base_code, base_contract, base_erc1155-balance, base_erc20-balance, base_erc20-transfers, base_erc721-tokens, base_estimate-gas, base_events, base_live-balance, base_network-info, base_nft-metadata, base_nft-owner, base_nonce, base_pending, base_proxy, base_quote, base_receipt, base_simulate, base_storage, base_total-supply, base_tx, can_pay, classify, contact_kairos, coordination_thread_schema, coordination_thread_snapshot_schema, crypto, decide, digest_tool_result, discover_semantic, encoding_detect, encoding_transcode, fact_check, fraction_simplify, gas_price, geo_bbox, geo_bearing, geo_distance, geo_dms, geo_geohash, geo_midpoint, geo_point-in-polygon, get_agent_trust_kit, get_welcome_salon, guard, hash_hash, hash_hmac, honest_delivery_refusal_schema, intent, json_diff, json_flatten, json_query, json_schema-infer, json_validate, language, llm_claude_sonnet, llm_gpt_mini, llm_llama, mesh_claim_bounty, mesh_ledger, mesh_list_bounties, mesh_list_nodes, mesh_post_bounty, mesh_register_node, money_allocate, money_format, news, number_ordinal, number_radix, number_roman, number_words, pii_check, poll_contact_kairos, probe, rank, regex_replace, regex_test, relationship_memory_schema, research, return_visit_pledge_schema, search, sentiment, spam_check, stats_correlation, stats_percentile, stats_regression, stats_summary, text_case, text_diff, text_readability, text_slug, time_add, time_between, time_business-days, time_convert, time_format, time_humanize, time_iso-week, time_parse, token_risk, tool_delivery_receipt_schema, toxicity, unit_convert, validate_coordination_thread_snapshot, validate_coordination_thread_turn, validate_ean, validate_honest_delivery_refusal, validate_iban, validate_imei, validate_isbn, validate_isin, validate_luhn, validate_relationship_memory, validate_return_visit_pledge, validate_routing, validate_siret, validate_tool_delivery_receipt, validate_vin, verify, verify_tool_result_digest, wallet_balance, wallet_intelligence, weather, x402_echo
• discover_mcp_servers: description changed
• extract_structured: input schema, output schema changed
• jobs: input schema, output schema changed
• read_pdf: description, input schema, output schema changed
• read_web_page: description, input schema, output schema changed
• summarize: input schema, output schema changed
• translate: input schema, output schema changed

Which tools were added or removed, and whose description or schemas changed, from content hashes in the monthly snapshots. Per tool, as JSON: /v1/drift.

The listing

Also

The full check by name, as JSON (on a 401 it also follows the OAuth discovery chain) · Watch it · Check another server · llms.txt

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