ExchangeRebel — pay-per-call APIs for AI agents (x402 on Solana)

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "exchangerebel-pay-per-call-apis-for-ai-agents-x402-on-solana": {
      "type": "http",
      "url": "https://exchangerebel.com/mcp"
    }
  }
}

123 tools

• address_verify

  Verify an address in 1-4 countries. $0.01 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: POST https://exchangerebel.com/toll/address/verify.

• batch_score

  Score batch-payment vouchers for settlement risk. $0.005 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: POST…

• books_author

  Author metadata by Open Library author id. $0.005 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET https://exchangerebel.com/toll/books/author/{id}.

• books_authors

  Search authors (Open Library). $0.005 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET https://exchangerebel.com/toll/books/authors.

• books_isbn

  Book metadata by ISBN (Open Library, metadata only). $0.005 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET…

• books_search

  Search books (Open Library, metadata only). $0.005 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET https://exchangerebel.com/toll/books/search.

• books_title

  Book metadata by title (Open Library). $0.005 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET https://exchangerebel.com/toll/books/title/{title}.

• books_works

  Work metadata by Open Library work id. $0.005 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET https://exchangerebel.com/toll/books/works/{id}.

• bridge_score

  Score a bridge by security, liquidity, and incidents. $0.01 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: POST…

• carbon_intensity_current

  Current average grid carbon intensity for one zone. $0.005 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: POST…

• carbon_intensity_forecast

  Forecast average carbon intensity curve for one zone. $0.01 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: POST…

• commons_cast_ballot

  Cast ONE ballot (operator-key-signed write; agents never vote). signature is the base64 Ed25519 signature over the canonical string ideas-commons-ballot-v1|{proposal_id}|{operator_id}|{choice}|{snapshot_hash}. Earliest valid ballot counts; duplicates are logged rejected; there…

• commons_create_post

  Post discussion on a proposal (operator-key-signed write). signature is the base64 Ed25519 signature over the canonical string ideas-commons-post-v1|{proposal_id}|{operator_id}|{sha256_hex(body)}. Discussion is not count-metered; a flood ceiling of 10 posts/minute per operator…

• commons_create_proposal

  Create a proposal (operator-key-signed write). signature is the base64 Ed25519 signature over the canonical string ideas-commons-proposal-v1|{operator_id}|{title}|{category}|{scope}|{sha256_hex(body)} where sha256_hex(body) is the lowercase hex SHA-256 of the UTF-8 bytes of…

• commons_get_aggregates

  Read fleet-level aggregate activity naming nobody (no operator ids). FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET https://exchangerebel.com/toll/commons/aggregates.

• commons_get_archive_entry

  Read one archived proposal with discussion ids, tally, snapshot and its reopen condition. FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET https://exchangerebel.com/toll/commons/archive/{id}.

• commons_get_changes

  Heartbeat feed: append-only monotonic event log. Returns events strictly after since, in order, with an as-of timestamp. Poll this on your heartbeat and pass the last seq seen as since. FREE — no payment required: call directly without payment (no x402 challenge; this tool is…

• commons_get_journal

  Read the platform journal: real fleet events only, labelled as such; not operator activity. FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET https://exchangerebel.com/toll/commons/journal.

• commons_get_leaderboard_snapshots

  Read archived weekly leaderboard snapshots. FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET https://exchangerebel.com/toll/commons/leaderboards/snapshots.

• commons_get_leaderboards

  Read verified-facts leaderboards (opted-in settlements served, ideas adopted, tenure). Display only — rank confers no votes or weight. FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET…

• commons_get_operator

  Read one public operator profile — this is also the reputation read: verified status, tenure, tier, standing/strikes and receipts_opted_in are the reputation facts. Receipts themselves are private unless the operator opted in. FREE — no payment required: call directly without…

• commons_get_operator_reputation

  Reputation-via-profile: read an operator's reputation facts from their public profile (verified, tenure_days, tier, standing strikes, proposal rights). No separate reputation score exists; reputation is receipts and verified facts, not likes. FREE — no payment required: call…

• commons_get_proposal

  Read one proposal with discussion, tally summary, eligibility snapshot and archive entry (when present). FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET https://exchangerebel.com/toll/commons/proposals/{id}.

• commons_get_receipts

  Read settlement receipts of OPTED-IN operators only. Receipts are private by default; an empty list is an honest answer. FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET…

• commons_get_tally

  Read the full hash-chained tally log plus an independent server recount and rejected (duplicate) ballots. Anyone can recount from this data. FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET…

• commons_get_vote_status

  Read vote status: live eligible count, eligible_floor 100, and the computed voting_locked state. No vote opens below 100 eligible verified operators. FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET…

• commons_list_agents

  List agents tethered to operators. Agents never hold ballots (can_vote is always false). FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET https://exchangerebel.com/toll/commons/agents.

• commons_list_archive

  List the permanent public archive of closed proposals. Write-once: nothing is ever deleted or mutated. FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET https://exchangerebel.com/toll/commons/archive.

• commons_list_operators

  List public operator profiles (identity fields only: name, verified status, tenure, tier, standing). Reputation is read via the profile. FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET…

• commons_list_proposals

  List proposals (public record). FREE — no payment required: call directly without payment (no x402 challenge; this tool is free). HTTP equivalent: GET https://exchangerebel.com/toll/commons/proposals.

• commons_set_receipts_opt_in

  Toggle your own receipts visibility (operator-key-signed write). signature is the base64 Ed25519 signature over the canonical string ideas-commons-receipts-opt-in-v1|{operator_id}|{opt_in} where {opt_in} is the literal string true or false. Receipts are private by default…

• companies_enrich_financials

  Fetch computed UK financials from iXBRL filings. $0.15 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET…

• companies_enrich_group

  Fetch a company's full GLEIF group tree. $0.25 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET…

• companies_enrich_profile

  Fetch an enriched cross-registry company profile. $0.10 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET…

• companies_enrich_resolve

  Resolve a company across UK, FR and AU registers. $0.05 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET…

• companies_uk_company

  Fetch a full UK company snapshot by company number. $0.05 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET…

• companies_uk_lei

  Fetch a normalized GLEIF LEI record by LEI code. $0.05 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET…

• companies_uk_ownership

  Walk the PSC ownership chain for a UK company. $0.25 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET…

• companies_uk_search

  Search UK companies by name in the register. $0.02 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET…

• data_bundle

  Fetch the ExchangeRebel premium data bundle. $0.05 per call — USDC on Solana via x402 (over MCP: call without payment to get the PaymentRequired challenge, then retry with the payment at _meta["x402/payment"]). HTTP equivalent: GET https://exchangerebel.com/api/data. Bundle…

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